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List of Fish Occurrence Records for Guyana
n=1585

Occurrence point list

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Species Locality Year Identifier
Leporinus nigrotaeniatus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE BIG FALLS (UNOROWO RIVER) 1937 A. FERNANDEZ Y.
Leporinus nigrotaeniatus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE CATARACT (UNOROWO RIVER) 1937 A. FERNANDEZ Y.
Leporinus paralternus Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Leptodoras linnelli CUYUNI RIVER AT MATOPE 1924 C.J. FERRARIS
Leptodoras linnelli DEMERARA RIVER, MALALI TO GREAT FALLS 1934 C.J. FERRARIS, B.A. BROWN
Lobotes surinamensis DEMERARA RIVER   J.T. NICHOLS
Loricaria cataphracta DEMERARA RIVER, WISMAR   F.R. LAMONTE
Loricaria cataphracta SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Loricaria cataphracta SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Loricaria cataphracta SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Loricaria cataphracta SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Loricariichthys brunneus DEMERARA RIVER, WISMAR   F.R. LAMONTE
Loricariichthys brunneus ESSEQUIBO RIVER, ROCKSTONE 1938 F.R. LAMONTE
Loricariichthys maculatus ESSEQUIBO RIVER, ROCKSTONE   B.A. BROWN
Loricariichthys maculatus ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Loricariichthys maculatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Loricariichthys maculatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Loricariichthys maculatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Loricariichthys maculatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Loricariichthys microdon ESSEQUIBO POND, ROCKSTONE 1937 F.R. LAMONTE
Lutjanus synagris Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Lycengraulis batesii ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT; G. NELSON
Lycengraulis batesii ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT; G. NELSON
Lycengraulis batesii JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS BARTICA   G.J. NELSON
Lycengraulis batesii SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT; G. NELSON
Lycengraulis grossidens DEMERARA RIVE DEMERARA RIVER 1973  
Macrodon ancylodon GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Makunaima guianensis DEMERARA RIVER   R.P. VARI
Makunaima guianensis ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Makunaima guianensis WISMAR   R.P. VARI
Makunaima guianensis YARAKITA RIVER 1937 F.R. LAMONTE
Mazarunia charadrica Shallow pool at HLF08-19, between 2-10m wide by about 20m long, Waruma Creek, upper Mazaruni River, Cuyuni-Mazaruni (Region 7) 2008  
Mazarunia pala Cuyuni-Mazaruni (Region 7), upper Mazaruni River, backwater channel on right bank in front of Warwata village, near mouth of Kamarang River 2011  
Megalechis thoracata ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Megalechis thoracata KARTABO 1920 C.W. BEEBE
Megalechis thoracata KURUPUNG RIVER, GEORGETOWN   R.E. REIS
Megalechis thoracata NEAR GEORGETOWN   R.E. REIS
Megalechis thoracata POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Megalechis thoracata POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Megalechis thoracata RUPUNUNI RIVER, WICHABAI (J. MELVILLE'S RANCH), 10 MILES NORTH OF DADANAWA 1938 R.E. REIS
Megalops atlanticus DEMERARA RIVER    
Menticirrhus americanus GEORGETOWN DEMERARA RIVER 1973  
Menticirrhus americanus GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Mesonauta festivus DEMERARA RIVER    
Mesonauta festivus Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Mesonauta festivus Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Mesonauta festivus ESSEQUIBO POND, ROCKSTONE 1937 F.R. LAMONTE
Mesonauta festivus ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Mesonauta festivus LAMA STOP-OFF, LAMA CREEK, IN CANAL AND BELOW DAM 1908 C.H. EIGENMANN
Mesonauta festivus POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Mesonauta insignis DEMERARA RIVER, KORA-KORA CREEK 1935 M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis DEMERARA RIVER, KORA-KORA CREEK 1935 M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis DEMERARA RIVER, MALALI   M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis DEMERARA RIVER, MALALI 1935 M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis DEMERARA RIVER, WISMAR   M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis DEMERARA RIVER, WISMAR 1933 M.L.J.STIASSNY,B.K.URBAIN
Mesonauta insignis ESSEQUIBO RIVER, ROCKSTONE   M. STIASSNY,B. URBAIN,L.*
Mesonauta insignis ROCKSTONE 1934 M.L.J.STIASSNY,B. URBAIN
Micromischodus sugillatus ARABABO RIVER *, TRIBUTARY TO KAKO-MAZARUNI RIVER 1939 B.A. BROWN,D.M. RODRIGUEZ
Microphis brachyurus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Microphis brachyurus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Microphis brachyurus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Microphis brachyurus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Micropoecilia bifurca MARI-MARI RIVER, MALALI   F.R. LAMONTE
Moenkhausia browni ARUBABO RIVER, TRIBUTARY OF KAKO-MAZARUNI 1939 F. WOOD, F.R. LAMONTE
Moenkhausia browni MAZARUNI RIVER, KAMAKUSA   J.T. NICHOLS
Moenkhausia browni MEMBARU CREEK, TRIBUTARY OF UPPER MAZARUNI RIVER 1938 F. WOOD, F.R. LAMONTE
Moenkhausia chrysargyrea ESSEQUIBO RIVER, ROCKSTONE   R.P.VARI
Moenkhausia chrysargyrea LAMAHA CANAL, EAST OF DEMERARA RIVER   F.R. LAMONTE
Moenkhausia chrysargyrea ROCKSTONE   R.P. VARI
Moenkhausia chrysargyrea SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia collettii ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Moenkhausia collettii BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia collettii DEMERARA RIVER   R.P. VARI
Moenkhausia collettii KAIETEUR 1911 J.T. NICHOLS
Moenkhausia collettii LITTLE TAKUTU RIVER AND TRIBUTARIES, MAZARAHALLY TAKUTU LUMBER CAMP, WEST SHORE MAZARUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia copei CEBO CREEK, NORTH BANK MAZARUNI RIVER, FEW HUNDRED YARDS EAST OF ST. EDWARDS CHURCH, KARTABO 1982 R.E. SCHMIDT
Moenkhausia copei CEBO CREEK, WEST BANK MAZARUNI RIVER, EAST OF ST. EDWARDS CHURCH, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia copei ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Moenkhausia copei ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia copei Rockstone, Essequibo-River, Brit. Guayana   J. Gery rev. 1961
Moenkhausia cotinho ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Moenkhausia cotinho BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia cotinho DEMERARA RIVER   R.P. VARI
Moenkhausia cotinho DEMERARA RIVER, MALALI ? 1934 R.P. VARI
Moenkhausia cotinho Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Moenkhausia cotinho ESSEQUIBO RIVER, ABOVE ROCKSTONE   F.R. LAMONTE
Moenkhausia cotinho MALALI   R.P. VARI
Moenkhausia cotinho ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia cotinho UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 F. WOOD, F.R. LAMONTE
Moenkhausia cotinho UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 F.R. LAMONTE
Moenkhausia cotinho UPPER MAZARUNI DISTRICT, MACKREBA FALLS, KURUPUNG RIVER 1939 R.P. VARI
Moenkhausia cotinho WISMAR 1934 R.P. VARI
Moenkhausia dichroura Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Moenkhausia dichroura NO FURTHER DATA    
Moenkhausia grandisquamis ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Moenkhausia grandisquamis ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Moenkhausia grandisquamis KARTABO 1922 C.W. BEEBE; R.P. VARI
Moenkhausia grandisquamis KARTABO, JUNCTION MAZARUNI AND CUYUNI RIVERS, MARARUNI-POTARO DISTRICT   R.P. VARI
Moenkhausia grandisquamis ROCKSTONE   R.P. VARI
Moenkhausia grandisquamis ROCKSTONE, ESSEQUIBO RIVER AT STELLING(PIER), RAILROAD CUT BELOW TOWN, IN SMALL WOODLAND CREEK ON GLUCK ISLAND, ON/AROUND SAND BANK AT BEND ABOVE TOWN 1908 C.H. EIGENMANN
Moenkhausia lepidura BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura CEBO CREEK, NORTH BANK MAZARUNI RIVER, FEW HUNDRED YARDS EAST OF ST. EDWARDS CHURCH, KARTABO 1982 R.E. SCHMIDT
Moenkhausia lepidura CEBO CREEK, WEST BANK MAZARUNI RIVER, EAST OF ST. EDWARDS CHURCH, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Moenkhausia lepidura FOREST STREAM EAST OF BATAVIA LANDING-GUYANA SAWMILLS, SOUTH BANK CUYUNI RIVER 1982 R.E. SCHMIDT
Moenkhausia lepidura ISOLATED TIDE POOLS IN FOREST, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia lepidura KARTABO POINT, CONFLUENCE OF MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Moenkhausia lepidura KARTABO, JUCNTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI - POTARO DISTRICT 1922 C.W. BEEBE
Moenkhausia lepidura KARTABO, JUCNTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI - POTARO DISTRICT 1922 C.W. BEEBE
Moenkhausia lepidura LITTLE TAKUTU RIVER AND TRIBUTARIES, MAZARAHALLY TAKUTU LUMBER CAMP, WEST SHORE MAZARUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia lepidura MAZARUNI RIVER MOUTH, KARTABO POINT 1982 R.E. SCHMIDT
Moenkhausia lepidura MAZARUNI RIVER, KAMAKUSA   J.T. NICHOLS
Moenkhausia lepidura ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura Rockstone, Essequibo-River, Brit. Guayana   J. Gery rev. 1961
Moenkhausia lepidura SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Moenkhausia lepidura SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia lepidura SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Moenkhausia lepidura SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Moenkhausia lepidura SECOND ISLAND UPRIVER FROM KARTABO POINT, MAZARUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia megalops DEMERARA RIVER, WISMAR   F.R. LAMONTE
Moenkhausia megalops SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Moenkhausia megalops SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Moenkhausia oligolepis BLACKWATER CREEK, ESSEQUIBO RIVER HEADWATERS 1938  
Moenkhausia oligolepis DEMERARA RIVER, WISMAR   R.P. VARI
Moenkhausia oligolepis ISOLATED TIDE POOLS IN FOREST, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia oligolepis LITTLE TAKUTU RIVER AND TRIBUTARIES, MAZARAHALLY TAKUTU LUMBER CAMP, WEST SHORE MAZARUNI RIVER 1983 R.E. SCHMIDT
Moenkhausia oligolepis MARI-MARI RIVER, MALALI   F.R. LAMONTE
Moenkhausia oligolepis MAZARUNI RIVER, KAMAKUSA   J.T. NICHOLS
Moenkhausia oligolepis POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Moenkhausia oligolepis POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Moenkhausia oligolepis SAMBITO FALLS, AMACURO RIVER   F.R. LAMONTE
Moenkhausia oligolepis UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 F. WOOD, F.R. LAMONTE
Moenkhausia oligolepis UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 F.R. LAMONTE
Moenkhausia shideleri DEMERARA RIVER, WISMAR   F.R. LAMONTE
Moenkhausia shideleri SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Moenkhausia surinamensis LITTLE TAKUTU RIVER AND TRIBUTARIES, MAZARAHALLY TAKUTU LUMBER CAMP, WEST SHORE MAZARUNI RIVER 1983 R.E. SCHMIDT
Monacanthus ciliatus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Monocirrhus polyacanthus Brit. Guayana    
Monocirrhus polyacanthus ESSEQUIBO RIVER, ROCKSTONE 1936 F.R. LAMONTE
Monocirrhus polyacanthus ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Mugil curema NORTHWEST DISTRICT, MORAWHANNA, BARIMA RIVER 1937 F.R. LAMONTE
Mugil incilis GEORGETOWN 1934 I.J. HARRISON
Mugil incilis GEORGETOWN DEMERARA RIVER 1973  
Myleus pacu BERBICE RIVER   F.R. LAMONTE
Myleus setiger JUNCTION OF MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS, BARTICA 1935 R.P. VARI
Myloplus rubripinnis DEMERARA RIVER, AKYMA   M.H. HARNICK
Myloplus rubripinnis JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS AT BARTICA   F.R. LAMONTE
Myloplus ternetzi DEMERARA RIVER, AKYMA   F.R. LAMONTE
Myloplus ternetzi SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Nannacara anomala DEMERARA RIVER, WISMAR   R. INGLE, M. BUERKLI
Nannacara bimaculata MAZARUNI RIVER, KAMAKUSA    
Nannostomus beckfordi HARARUNI CREEK 1936 F.R. LAMONTE
Nannostomus eques ESSEQUIBO RIVER, ROCKSTONE 1937 S. WEITZMAN
Nannostomus eques ESSEQUIBO RIVER, ROCKSTONE   S. WEITZMAN
Nannostomus espei Brit. Guayana    
Nannostomus espei Brit. Guayana    
Nannostomus harrisoni DEMERARA RIVER    
Nannostomus harrisoni DEMERARA RIVER, HAURARUNI 1936  
Nannostomus harrisoni DEMERARA RIVER, KAMUNI CREEK 1936 R.P. VARI
Nannostomus harrisoni DEMERARA RIVER, KORA-KORA CREEK 1935 M. BUERKLI, R. INGLE
Nannostomus harrisoni DEMERARA RIVER, WISMAR   R.P. VARI
Nannostomus harrisoni ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Nannostomus harrisoni KORA KORA CREEK   A.S. PINKUS
Nannostomus harrisoni KORA-KORA CREEK   M. BUERKLI, R. INGLE
Nannostomus harrisoni MALALI   R.P. VARI
Nannostomus marginatus DEMERARA RIVER   R.P. VARI
Nannostomus marginatus ESSEQUIBO RIVER, ROCKSTONE   S. WEITZMAN
Nannostomus marginatus Essequibo-River, Brit. Guayana 1933  
Nannostomus marginatus KORA-KORA CREEK   R.P. VARI
Nannostomus marginatus KORA-KORA CREEK   R.P. VARI
Nannostomus marginatus KORA-KORA CREEK   R.P. VARI
Nannostomus marginatus KORA-KORA CREEK   R.P. VARI; S. WEITZMAN
Nannostomus marginatus KORA-KORA CREEK   S. WEITZMAN
Nannostomus marginatus MALALI   R.P. VARI
Nannostomus marginatus ROCKSTONE   R.P. VARI
Nannostomus marginatus ROCKSTONE   R.P. VARI
Nannostomus marginatus WISMAR   R.P. VARI
Nannostomus marginatus WISMAR   R.P. VARI
Nannostomus marginatus WISMAR    
Nannostomus minimus UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 S. WEITZMAN
Nannostomus trifasciatus DEMERARA RIVER, MALALI TO GREAT FALLS 1934 M. BUERKLI, R. INGLE
Nannostomus trifasciatus ESSEQUIBO RIVER, ROCKSTONE   S. WEITZMAN
Nannostomus trifasciatus KORA-KORA CREEK    
Nannostomus trifasciatus Rockstone, Essequibo-River, Brit. Guayana 1933  
Nannostomus trifasciatus WISMAR    
Nannostomus unifasciatus KORA-KORA CREEK   R. INGLE, M. BUERKLI
Nannostomus unifasciatus Wismar, Demerara-River, Brit. Guayana 1933  
Nannostomus unifasciatus YARAKITA RIVER 1937 F.R. LAMONTE
Nannoxyropsis ephippia Burro Burro River (Essequibo Drainage), Deer Falls between Deer Creek and Water Dog Falls 1997  
Narcine brasiliensis Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Neblinichthys brevibracchium Mouth of a small creek with cut banks and primary forest, lower Kukui River at Jawalla, upper Mazaruni River drainage. 2008  
Neblinichthys echinasus Kukui River, near town of Philipai, upper Mazaruni River drainage 2008  
Nebris microps DEMERARA RIVER   N. BORODIN
Nebris microps GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Odontognathus mucronatus DEMERARA RIVE DEMERARA RIVER 1973  
Oligoplites saurus GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Ophichthus gomesii Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Opisthonema oglinum Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Oreochromis mossambicus GEORGETOWN DEMERARA RIVER 1973  
Oreochromis mossambicus GEORGETOWN DEMERARA RIVER 1973  
Orthopristis chrysoptera Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Orthopristis rubra GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Oxyropsis carinata ESSEQUIBO RIVER, ROCKSTONE   B.A. BROWN, C.J. FERRARIS
Pachypops fourcroi KARTABO, JUNCTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI - POTARO DISTRICT 1924 L. CASATTI
Pachypops fourcroi KARTABO, JUNCTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI - POTARO DISTRICT 1921 L. CASATTI
Pachypops fourcroi KARTABO, JUNCTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT   L. CASATTI
Pachypops fourcroi SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pachypops fourcroi SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Pachypops fourcroi SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pachypops fourcroi SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Panaqolus claustellifer Takutu River near Lethem, rio Branco drainage, Amazon River 2005  
Paracanthopoma parva ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Paracanthopoma parva ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Paracheirodon axelrodi DEMERARA RIV DEMERARA RIVER 1973  
Parapristella aubynei Lamaha- Kanäle bei Georgetown, Brit. Guayana   J. Gery rev. 1961
Parotocinclus collinsae Essequibo R. drainage, trib. to Takutu R., 6°15'N, 59°5'W, Essequibo, Guyana.    
Paulasquama callis Cuyuni-Mazaruni, Waruma River, Kako River-Mazaruni River drainage (riffles and shallow rapids upstream from camp). 2008  
Peckoltia cavatica Rupununi R., 3.7 km sse. of Massara, 03.86228°N, -059.28439°W, Rupununi (Region 9), Guyana.    
Peckoltia sabaji 5.9 km west-southwest of village of Sand Creek, 02.96656°, -059.56943°, Essequibo R. drainage, Rupununi (Region 9), Guyana.    
Pellona harroweri GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Peprilus paru Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Petulanos plicatus CUYUNI RIVER HALFWAY BETWEEN LANDING AND MOUTH IN ESSEQUIBO, NEAR NABIE WAN (RIVER) 1937 A. FERNANDEZ Y.
Petulanos plicatus Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Petulanos plicatus RUPUNUNI RIVER, WICHABAI (J. MELVILLE'S RANCH), 10 MILES NORTH OF DADANAWA 1938 A. FERNANDEZ Y.
Petulanos plicatus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE BIG FALLS (UNOROWO RIVER) 1937 A. FERNANDEZ Y.
Petulanos plicatus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE CATARACT (UNOROWO RIVER) 1937 A. FERNANDEZ Y.
Phenacogaster carteri UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1938 F. WOOD, F.R. LAMONTE
Phenacogaster megalostictus DEMERARA RIVER   R.P. VARI
Phenacogaster megalostictus ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Phenacogaster megalostictus ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Phenacogaster megalostictus KARTABO 1924 R.P. VARI
Phenacogaster megalostictus NO FURTHER DATA   R.P. VARI
Phenacogaster megalostictus ROCKSTONE   R.P. VARI
Phenacogaster megalostictus WISMAR   R.P. VARI
Phenacogaster microstictus DEMERARA RIVER   R.P. VARI
Phenacogaster microstictus DEMERARA RIVER, MALALI TO GREAT FALLS 1934 R.P. VARI
Phenacogaster microstictus ESSEQUIBO RIVER, ROCKSTONE   R.P. VARI
Phenacogaster microstictus ROCKSTONE   R.P. VARI
Phenacogaster microstictus ROCKSTONE   R.P. VARI
Phenacogaster microstictus SAMBITO FALLS, AMACURO RIVER 1938 F. WOOD, F.R. LAMONTE
Phenacogaster microstictus WISMAR 1935 R.P. VARI
Phenacogaster microstictus WISMAR   R.P. VARI
Phenacogaster microstictus WISMAR   R.P. VARI
Phenacogaster simulata Potaro-Siparuni: Tukeit Falls (Rio Potaro, Mahdia) 1990  
Piabucina unitaeniata MEMBARU CREEK, TRIBUTARY OF UPPER MAZARUNI RIVER 1938 F. WOOD, F.R. LAMONTE
Piabucus dentatus ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Piabucus dentatus JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS BARTICA   F.R. LAMONTE
Piabucus dentatus YARAKITA RIVER 1937 F.R. LAMONTE
Piabucus dentatus YARAKITA RIVER 1937 F.R. LAMONTE
Pimelodella cristata Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Pimelodella cristata ESSEQUIBO RIVER, ABOVE ROCKSTONE   F.R. LAMONTE
Pimelodella cristata ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Pimelodella cristata KARTABO 1922 M.H.HARNICK,D.R.RODRIGUEZ
Pimelodella cristata SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pimelodella cristata SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Pimelodella cristata SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Pimelodella leptosoma Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Pimelodella macturki BERBICE RIVER   B.A. BROWN
Pimelodella macturki BERBICE RIVER   F.R. LAMONTE
Pimelodella macturki DEMERARA RIVER, WISMAR 1933 B.A. BROWN
Pimelodella macturki Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Pimelodella macturki KABURI ROCK, MAZARUNI RIVER   F.R. LAMONTE
Pimelodus albofasciatus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pimelodus albofasciatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pimelodus albofasciatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Pimelodus albofasciatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH 1982 R.E. SCHMIDT
Pimelodus albofasciatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT, K. SCHMIDT
Pimelodus blochii ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Pimelodus blochii SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pimelodus ornatus BERBICE RIVER   B.A. BROWN
Pimelodus ornatus DEMERARA RIVER, MALALI 1935 C.J. FERRARIS, B.A. BROWN
Pimelodus ornatus ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Pimelodus ornatus KARTABO 1924 C.W. BEEBE
Pimelodus ornatus NO FURTHER DATA    
Pimelodus ornatus Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Pimelodus ornatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pimelodus ornatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Plagioscion squamosissimus ABOUT 100 METERS OFF KARTABO POINT, CONFLUENCE OF MAZARUNI AND CUYUNI RIVERS, MAZARUNI- POTARO DISTRICT 1983 L. CASATTI
Plagioscion squamosissimus KARTABO 1924 L. CASATTI
Plagioscion squamosissimus KURUPUNG RIVER, GEORGETOWN   J.T. NICHOLS; L. CHAO
Plagioscion squamosissimus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 L. CASATTI
Plagioscion surinamensis DEMERARA RIV DEMERARA RIVER 1973  
Platydoras costatus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE CATARACT (UNOROWO RIVER) 1937  
Platydoras hancockii DEMERARA RIVER, MALALI   C.J. FERRARIS
Platydoras hancockii ESSEQUIBO RIVER, ABOVE ROCKSTONE   B.A. BROWN, C.J. FERRARIS
Platystacus cotylephorus DEMERARA RIVER, SAND HILLS 1937 F.R. LAMONTE
Platyurosternarchus crypticus Moco-Moco Creek, upper Takutu River (Rio Branco basin), N slope of base of Kanuku Mountains, approximately 16 km E of Lethem, Rupununi (Region 9) 1971  
Poecilia parae DEMERARA RIVER, GEORGETOWN 1937 C. HUBBS, D.E. ROSEN
Poecilia parae DEMERARA RIVER, MALALI TO GREAT FALLS 1934 D.E. ROSEN
Poecilia parae DEMERARA RIVER, WISMAR    
Poecilia parae DEMERARA RIVER, WISMAR 1935  
Poecilia parae MARI-MARI RIVER, MALALI   C. HUBBS, D.E. ROSEN
Poecilia parae MARI-MARI RIVER, MALALI   D.E. ROSEN
Poecilia picta HAULOVER, ARANA RIVER (ARUAU? - MNF) 1938 F. WOOD, F.R. LAMONTE*
Poecilia picta NORTHWEST DISTRICT, MORAWHANNA, BARIMA RIVER 1937 D.E. ROSEN, C. HUBBS
Poecilia picta YARAKITA RIVER 1937 D.E. ROSEN, C. HUBBS
Poecilia reticulata AKIMA ISLAND 1924 C.W. BEEBE
Poecilia reticulata ARUAU RIVER, TRIBUTARY OF BARAMA NEAR ITS MOUTH IN THE WAINI 1937 M. RAUCHENBERGER
Poecilia reticulata BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Poecilia reticulata CEBO CREEK, NORTH BANK MAZARUNI RIVER, FEW HUNDRED YARDS EAST OF ST. EDWARDS CHURCH, KARTABO 1982 R.E. SCHMIDT
Poecilia reticulata CEBO CREEK, WEST BANK MAZARUNI RIVER, EAST OF ST. EDWARDS CHURCH, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Poecilia reticulata CONTINGA CREEK 1924 D.E. ROSEN
Poecilia reticulata FOREST STREAM EAST OF BATAVIA LANDING-GUYANA SAWMILLS, SOUTH BANK CUYUNI RIVER 1982 R.E. SCHMIDT
Poecilia reticulata ISOLATED TIDE POOLS IN FOREST, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Poecilia reticulata LITTLE TAKUTU RIVER AND TRIBUTARIES, MAZARAHALLY TAKUTU LUMBER CAMP, WEST SHORE MAZARUNI RIVER 1983 R.E. SCHMIDT
Poecilia reticulata POTARO RIVER, TUMATUMARI   J.T. NICHOLS; D.E. ROSEN
Poecilia reticulata WHYAPE CREEK, FIRST CREEK ON NORTH BANK CUYUNI RIVER, WEST OF MOUTH 1982 R.E. SCHMIDT
Poecilia vivipara DEMERARA RIVER, GEORGETOWN   F.R. LAMONTE
Poecilia vivipara DEMERARA RIVER, WISMAR   D.E. ROSEN
Poecilia vivipara MALALI   M.H. HARNICK
Polycentrus schomburgkii ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Polycentrus schomburgkii ABANDONED QUARRY POOLS AND BARRACARA CREEK, EAST BANK MAZARUNI RIVER 1983 R.E. SCHMIDT
Polycentrus schomburgkii ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Polycentrus schomburgkii GEORGETOWN 1911  
Polycentrus schomburgkii GEORGETOWN   J.T. NICHOLS
Polycentrus schomburgkii LAMA STOP-OFF, LAMA CREEK, IN CANAL AND BELOW DAM 1908 C.H. EIGENMANN
Polycentrus schomburgkii LAMAHA CANAL, EAST OF DEMERARA RIVER   F.R. LAMONTE
Polycentrus schomburgkii ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Polycentrus schomburgkii YARAKITA RIVER 1937 F.R. LAMONTE
Polycentrus schomburgkii YARAKITA RIVER 1937 F.R. LAMONTE
Pomatomus saltatrix Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Poptella compressa ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. REIS
Poptella compressa CEBO CREEK, WEST BANK MAZARUNI RIVER, EAST OF ST. EDWARDS CHURCH, MAZARUNI-POTARO DISTRICT 1983 R.E. REIS
Poptella compressa DEMERARA RIVER, MALALI TO GREAT FALLS 1934 R.E. REIS
Poptella compressa DEMERARA RIVER, WISMAR 1934 R.E. REIS
Poptella compressa DEMERARA RIVER, WISMAR 1934 R.E. REIS
Poptella compressa ESSEQUIBO RIVER, ROCKSTONE 1938 R.E. REIS
Poptella compressa ESSEQUIBO RIVER, ROCKSTONE 1937 R.E. REIS
Poptella compressa KONAWARUK RIVER AT MOUTH IN ESSEQUIBO, BACK- WATER LAGOON AND POOL BELOW DIKE ACROSS ESSEQUIBO 1908 R.E. REIS
Poptella compressa MAZARUNI RIVER, KAMAKUSA   R.E. REIS
Poptella compressa ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. REIS
Poptella compressa SAMBITO FALLS, AMACURO RIVER 1938 R.E. REIS
Poptella compressa UPPER MAZARUNI DISTRICT, KURUPUNG 1938 R.E. REIS
Poptella compressa YARAKITA RIVER 1937 R.E. REIS
Poptella longipinnis Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Porichthys porosissimus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Potamorrhaphis guianensis CEBO CREEK, NORTH BANK MAZARUNI RIVER, FEW HUNDRED YARDS EAST OF ST. EDWARDS CHURCH, KARTABO 1982 R.E. SCHMIDT
Potamorrhaphis guianensis DEMERARA RIVER, MALALI TO GREAT FALLS 1934 M.H. HARNICK
Potamorrhaphis guianensis DEMERARA RIVER, WISMAR   F.R. LAMONTE
Potamorrhaphis guianensis ESSEQUIBO RIVER, ROCKSTONE 1938 F.R. LAMONTE
Potamorrhaphis guianensis JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS BARTICA    
Potamorrhaphis guianensis ROCKSTONE   B.A. BROWN,R.A. ARRINDELL
Potamorrhaphis guianensis Rockstone, Brit. Guayana 1938  
Potamorrhaphis guianensis WISMAR   B.A. BROWN,R.A. ARRINDELL
Potamorrhaphis guianensis WISMAR 1935 B.A. BROWN,R.A. ARRINDELL
Potamorrhaphis guianensis WISMAR   M.H. HARNICK
Potamotrygon orbignyi ca. 40 MILES SOUTHWEST OF GEORGETOWN TROPICAL RESEARCH STATION, KARTABO   R.S. ROSA, CASTEX
Potamotrygon orbignyi ca. 40 MILES SOUTHWEST OF GEORGETOWN TROPICAL RESEARCH STATION, KARTABO   R.S. ROSA, J. TEE-VAN
Priacanthus arenatus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Prionotus rubio Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Prionotus stearnsi Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Pristella maxillaris ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Pristella maxillaris ARUAU RIVER, TRIBUTARY OF BARAMA NEAR ITS MOUTH IN THE WAINI 1937 F.R. LAMONTE
Pristella maxillaris BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pristella maxillaris CEBO CREEK, NORTH BANK MAZARUNI RIVER, FEW HUNDRED YARDS EAST OF ST. EDWARDS CHURCH, KARTABO 1982 R.E. SCHMIDT
Pristella maxillaris CEBO CREEK, WEST BANK MAZARUNI RIVER, EAST OF ST. EDWARDS CHURCH, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pristella maxillaris DEMERARA RIV DEMERARA RIVER 1973  
Pristella maxillaris DEMERARA RIVER, WISMAR 1935 A.S. PINKUS
Pristella maxillaris DEMERARA RIVER, WISMAR 1935 F.R. LAMONTE
Pristella maxillaris ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Pristella maxillaris FOREST STREAM EAST OF BATAVIA LANDING-GUYANA SAWMILLS, SOUTH BANK CUYUNI RIVER 1982 R.E. SCHMIDT
Pristella maxillaris GEORGETOWN BOTANIC GARDEN TRENCH 1908 C.H. EIGENMANN
Pristella maxillaris ISOLATED TIDE POOLS IN FOREST, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Pristella maxillaris ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER 1983 R.E. SCHMIDT
Pristella maxillaris ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pristella maxillaris SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK 1983 R.E. SCHMIDT
Pristella maxillaris SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pristella maxillaris WHYAPE CREEK, FIRST CREEK ON NORTH BANK CUYUNI RIVER, WEST OF MOUTH 1982 R.E. SCHMIDT
Pristella maxillaris YARAKITA RIVER 1937 F.R. LAMONTE
Pristella maxillaris YARAKITA RIVER 1937 F.R. LAMONTE
Pristipomoides macrophthalmus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Pristobrycon aureus ESSEQUIBO    
Pristobrycon aureus ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Pristobrycon striolatus DEMERARA RIVER, WISMAR   F.R. LAMONTE
Prochilodus rubrotaeniatus ESSEQUIBO POND, ROCKSTONE 1937 R.M.C. CASTRO
Prochilodus rubrotaeniatus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Prochilodus rubrotaeniatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Prosomyleus rhomboidalis KAMARIA, CUYUNI RIVER 1922 C.W.BEEBE;BROWN,ARRINDELL
Psalidodon anisitsi ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Psalidodon anisitsi ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER 1983 R.E. SCHMIDT
Psalidodon anisitsi ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Psalidodon fasciatus Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Pseudacanthicus leopardus Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Pseudacanthicus serratus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pseudancistrus barbatus ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Pseudancistrus guentheri KARTABO, JUNCTION MAZARUNI AND CUYUNI RIVERS, MAZARUNI - POTARO DISTRICT   C.J. FERRARIS, B.A. BROWN
Pseudauchenipterus nodosus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Pseudauchenipterus nodosus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pseudauchenipterus nodosus DEMERARA RIVER   J.T. NICHOLS
Pseudauchenipterus nodosus DEMERARA RIVER, NEAR GEORGETOWN   F.R. LAMONTE
Pseudauchenipterus nodosus GEORGETOWN, TRENCHES 1908 C.H. EIGENMANN
Pseudauchenipterus nodosus POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Pseudobatos lentiginosus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Pseudopimelodus bufonius GEORGETOWN    
Pterophyllum scalare ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Pterophyllum scalare ESSEQUIBO RIVER, ROCKSTONE 1937 F.R. LAMONTE
Pterophyllum scalare ESSEQUIBO RIVER, ROCKSTONE   F.R. LAMONTE
Pterophyllum scalare ROCKSTONE   A.S. PINKUS
Pygopristis denticulata DEMERARA RIVER, WISMAR   F.R. LAMONTE
Pyrrhulina filamentosa ABANDONED FLOODED STONE QUARRY BEHIND GIDEON'S STORE, NORTH BANK MAZARUNI RIVER NEAR KARTABO, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Pyrrhulina filamentosa ABANDONED QUARRY POOLS AND BARRACARA CREEK, EAST BANK MAZARUNI RIVER 1983 R.E. SCHMIDT
Pyrrhulina filamentosa ARUATAIMA CATARACT 1908 C.H. EIGENMANN
Pyrrhulina filamentosa BARRACARA CREEK ON EAST BANK MAZARUNI RIVER MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pyrrhulina filamentosa DEMERARA RIVER, WISMAR 1934 R.P. VARI
Pyrrhulina filamentosa ISOLATED TIDE POOLS IN FOREST, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Pyrrhulina filamentosa KARTABO POINT, CONFLUENCE OF MAZARUNI AND CUYUNI RIVERS 1983 R.E. SCHMIDT
Pyrrhulina filamentosa KURUPUNG RIVER, GEORGETOWN   J.T. NICHOLS
Pyrrhulina filamentosa POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Pyrrhulina filamentosa ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER 1983 R.E. SCHMIDT
Pyrrhulina filamentosa ROCK QUARRY BEHIND GIDEON'S STORE, WEST BANK MAZARUNI RIVER, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Pyrrhulina filamentosa SMALL STREAM ON FOREST ROAD FROM SKULL POINT, NORTH BANK CUYUNI RIVER 1983 R.E. SCHMIDT
Pyrrhulina filamentosa UPPER MAZARUNI DISTRICT, KURUPUNG RIVER 1922  
Pyrrhulina laeta Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Pyrrhulina stoli Brit. Guayana    
Pyrrhulina stoli Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Rachycentron canadum Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Remora australis Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Rhamdia foina Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Rhamdia quelen UPPER RIVER KAMERANG, 20 MILES ABOVE PARUIMA 1938 F.R. LAMONTE
Rhamphichthys rostratus DEMERARA RIVER, SAND HILLS 1936 F.R. LAMONTE
Rhamphichthys rostratus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Rhinodoras armbrusteri Takutu River, Branco drainage, St. Ignatius, 1.9 km NNE of Lethem, Rupununi 2003  
Rhomboplites aurorubens Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Rineloricaria strigilata DEMERARA RIVER, WISMAR   B.A. BROWN
Rineloricaria strigilata ESSEQUIBO RIVER, ROCKSTONE   B.A. BROWN
Rineloricaria strigilata JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS BARTICA   B.A. BROWN
Roestes ogilviei Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Satanoperca jurupari DEMERARA RIVER, GREAT FALLS 1934  
Satanoperca jurupari MADUNI STOP-OFF, MADUNI CREEK, IN CANAL AND BELOW THE DAM 1908 C.H. EIGENMANN
Satanoperca leucosticta DEMERARA RIVER   H. LOPEZ FERNANDEZ
Satanoperca leucosticta DEMERARA RIVER   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta DEMERARA RIVER, WISMAR 1935 H. LOPEZ-FERNANDEZ
Satanoperca leucosticta DEMERARA RIVER, WISMAR   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta DEMERARA RIVER, WISMAR   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta MALALI   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta MALALI   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta MALALI   M.L.J.STIASSNY,B.K.URBAIN
Satanoperca leucosticta POTARO RIVER, TUMATUMARI   H. LOPEZ-FERNANDEZ
Satanoperca leucosticta RUPUNUNI RIVER, WICHABAI (J. MELVILLE'S RANCH), 10 MILES NORTH OF DADANAWA 1938 M.L.J. STIASSNY
Saurida caribbaea Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Schizodon fasciatus Essequibo Basin, (Rio Amarilla, Rio Las Claritas, Rio Sophia, Rio Morrocoy), Guyana.   D. Nowosad
Sciades herzbergii GEORGETOWN, TRENCHES 1908 C.H. EIGENMANN
Sciades herzbergii KURUPUNG RIVER, GEORGETOWN   J.T. NICHOLS
Sciades herzbergii POTARO RIVER, TUMATUMARI   J.T. NICHOLS
Sciades proops LAMA STOP-OFF, LAMA CREEK, IN CANAL AND BELOW DAM 1908 C.H. EIGENMANN
Scomber japonicus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Scomberomorus cavalla Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Selar crumenophthalmus GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Selene vomer Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Serranus phoebe Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Serrasalmus eigenmanni DEMERARA RIVER   R.P. VARI
Serrasalmus eigenmanni ESSEQUIBO    
Serrasalmus marginatus ESSEQUIBO POND, ROCKSTONE 1937 F.R. LAMONTE
Serrasalmus rhombeus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Serrasalmus rhombeus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Serrasalmus rhombeus DEMERARA RIVER, MALALI   B.A. BROWN
Serrasalmus rhombeus ESSEQUIBO    
Serrasalmus rhombeus JUNCTION MAZARUNI-CUYUNI AND ESSEQUIBO RIVERS BARTICA   F.R. LAMONTE
Serrasalmus rhombeus NO FURTHER DATA    
Serrasalmus rhombeus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRIE CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Serrasalmus rhombeus SANDBAR NORTH BANK CUYUNI RIVER, JUST UPSTREAM OF CAOWRY CREEK, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Serrasalmus rhombeus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Serrasalmus rhombeus SECOND ISLAND UPRIVER FROM KARTABO POINT, MAZARUNI RIVER 1983 R.E. SCHMIDT
Serrasalmus rhombeus YARAKITA RIVER 1937 F.R. LAMONTE
Serrasalmus rhombeus YARAKITA RIVER 1937 F.R. LAMONTE
Serrasalmus serrulatus SANDBAR ON NORTH BANK CUYUNI RIVER, JUST WEST OF CAOWRIE CREEK MOUTH, ESSEQUIBO DISTRICT 1982 R.E. SCHMIDT
Skiotocharax meizon Trib. of the Mazaruni R., upstream of Aruwai Falls, ca. 6°18'46"N, 60°35'41"W, Guyana.    
Sorubim lima NO FURTHER DATA   M.H. HARNICK
Sphoeroides nephelus Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Sphoeroides testudineus DEMERARA RIVER, GEORGETOWN 1934 J.C. TYLER
Sphoeroides testudineus GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Sphyraena guachancho GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Sphyrna tudes GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Steatogenys elegans DEMERARA RIV DEMERARA RIVER 1973  
Steatogenys elegans DEMERARA RIVER, SAND HILLS 1936  
Steatogenys elegans KORA-KORA CREEK 1935 R.P. VARI
Steatogenys elegans MARI-MARI RIVER, MALALI   F.R. LAMONTE
Steatogenys elegans Rockstone, Brit. Guayana 1938  
Steindachnerina guentheri ARUAU RIVER, TRIBUTARY OF BARAMA NEAR ITS MOUTH IN THE WAINI 1937 R.P. VARI
Stellifer lanceolatus DEMERARA RIV DEMERARA RIVER 1973  
Stellifer microps GEORGETOWN DEMERARA RIVER 1973  
Stellifer microps GUYANA OFF MOUTH ESQUIBO, NEW AMSTERDAM R    
Stephanolepis hispida Guyana, 40 - 70 miles offshore of the Guyanese coast, between the mouth of the Esquibo and Orinoco Rivers    
Sternarchorhynchus freemani Essequibo River basin, Lower Potaro River at Amatuk. 1908  
Sternopygus macrurus ABOUT 100 m OFF KARTABO POINT, CONFLUENCE MAZARUNI AND CUYUNI RIVERS, MAZARUNI-POTARO DISTRICT 1983 R.E. SCHMIDT
Sternopygus macrurus GEORGETOWN    
Sternopygus macrurus Niederl. Guayana 1906  
Sternopygus macrurus TRIBUTARY TO UPPER ESSEQUIBO RIVER, ONORA ABOVE BIG FALLS (UNOROWO RIVER) 1937 A. FERNANDEZ Y.
Sternopygus macrurus Wismar, Brit. Guayana 1938  
Sturisoma monopelte Rupununi R., Guyana, 2°-3°N, 50°20'W.    
Syacium micrurum [occurrence summary] 1969  

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