| Nominal Species (n = 146) | Present allocation (n = 102) | Ref. |
|---|---|---|
| Orestias agassii pequeni Tchernavin, 1944 | Orestias frontosus | 27139 |
| Orestias agassizi crequii Pellegrin, 1904 | Orestias agassizii | 50471 |
| Orestias agassizi inornata Pellegrin, 1904 | Orestias agassizii | 50471 |
| Orestias agassizi senechali Pellegrin, 1904 | Orestias agassizii | 50471 |
| Orestias agassizi typica Pellegrin, 1904 | Orestias agassizii | 50471 |
| Orestias agassizii Valenciennes, 1846 | Orestias agassizii | 50471 |
| Orestias agassizii affinis Garman, 1895 | Orestias agassizii | 50471 |
| Cyprinodon albivelis Minckley & Miller, 2002 | Cyprinodon albivelis | 43452 |
| Orestias albus Valenciennes, 1846 | Orestias albus | 50471 |
| Cyprinodon alvarezi Miller, 1976 | Cyprinodon alvarezi | 27139 |
| Megupsilon aporus Miller & Walters, 1972 | Megupsilon aporus | 4537 |
| Cyprinodon arcuatus Minckley & Miller, 2002 | Cyprinodon arcuatus | 43452 |
| Orestias ascotanensis Parenti, 1984 | Orestias ascotanensis | 50471 |
| Cyprinodon atrorus Miller, 1968 | Cyprinodon atrorus | 27139 |
| Cyprinodon baconi Breder, 1932 | Cyprinodon variegatus | 110348 |
| Orestias bairdii Cope, 1876 | Orestias pentlandii | 50471 |
| Cyprinodon beltrani Álvarez, 1949 | Cyprinodon beltrani | 50471 |
| Cyprinodon bifasciatus Miller, 1968 | Cyprinodon bifasciatus | 27139 |
| Cyprinodon bobmilleri Lozano-Vilano & Contreras-Balderas, 1999 | Cyprinodon bobmilleri | 38030 |
| Cyprinodon bondi Myers, 1935 | Cyprinodon bondi | 50471 |
| Cyprinodon bovinus Baird & Girard, 1853 | Cyprinodon bovinus | 5723 |
| Cyprinodon bovinus (non Baird & Girard, 1853) | Cyprinodon pisteri | 43452 |
| Cyprinodon bovinus rubrofluviatilis Fowler, 1916 | Cyprinodon rubrofluviatilis | 26282 |
| Cyprinodon brontotheroides Martin & Wainwright, 2013 | Cyprinodon brontotheroides | 94405 |
| Lucania browni Jordan & Richardson, 1907 | Cyprinodon macularius | 54621 |
| Cyprinodon californiensis Girard, 1859 | Cyprinodon macularius | 26282 |
| Cyprinodon carpio Günther, 1866 | Floridichthys carpio | 12965 |
| Floridichthys carpio barbouri Hubbs, 1936 | Floridichthys polyommus | 50471 |
| Floridichthys carpio polyommus Hubbs, 1936 | Floridichthys polyommus | 50471 |
| Cyprinodon ceciliae Lozano-Vilano & Contreras-Balderas, 1993 | Cyprinodon ceciliae | 26729 |
| Orestias chungarensis Vila & Pinto, 1987 | Orestias chungarensis | 50471 |
| Orestias crawfordi Tchernavin, 1944 | Orestias crawfordi | 50471 |
| Orestias ctenolepis Parenti, 1984 | Orestias ctenolepis | 50471 |
| Fundulus cubensis Eigenmann, 1903 | Cubanichthys cubensis | 50471 |
| Orestias cuvieri Valenciennes, 1846 | Orestias cuvieri | 50471 |
| Cyprinodon cyaneostriga Ahl, 1938 | Cyprinodon dearborni | 27139 |
| Orestias cypho Fowler, 1916 | Orestias luteus | 50471 |
| Cyprinodon dearborni Meek, 1909 | Cyprinodon dearborni | 50471 |
| Cyprinodon desquamator Martin & Wainwright, 2013 | Cyprinodon desquamator | 94405 |
| Cyprinodon diabolis Wales, 1930 | Cyprinodon diabolis | 5723 |
| Cyprinodon elegans (non Baird & Girard, 1853) | Cyprinodon pisteri | 43452 |
| Cyprinodon elegans Baird & Girard, 1853 | Cyprinodon elegans | 5723 |
| Orestias elegans Garman, 1895 | Orestias elegans | 50471 |
| Lebia ellipsoidea Lesueur, 1821 | Cyprinodon variegatus | 27139 |
| Orestias empyraeus Allen, 1942 | Orestias empyraeus | 50471 |
| Cyprinodon esconditus Strecker, 2002 | Cyprinodon esconditus | 50471 |
| Cyprinodon eximius Girard, 1859 | Cyprinodon eximius | 5723 |
| Cyprinodon eximius (non Girard, 1859) | Cyprinodon pisteri | 43452 |
| Orestias farfani Parenti, 1984 | Orestias luteus | 50471 |
| Trifarcius felicianus Poey, 1868 | Cyprinodon riverendi | 50471 |
| Jordanella floridae Goode & Bean, 1879 | Jordanella floridae | 5723 |
| Cyprinodon fontinalis Smith & Miller, 1980 | Cyprinodon fontinalis | 3881 |
| Orestias forgeti Lauzanne, 1981 | Orestias forgeti | 50471 |
| Orestias frontosus Cope, 1876 | Orestias frontosus | 50471 |
| Cyprinodon gibbosus Baird & Girard, 1853 | Cyprinodon variegatus | 27139 |
| Orestias gilsoni Tchernavin, 1944 | Orestias gilsoni | 50471 |
| Orestias gloriae Vila, Scott, Mendez, Valenzuela, Iturra & Poulin, 2012 | Orestias gloriae | 89071 |
| Orestias gracilis Parenti, 1984 | Orestias gracilis | 50471 |
| Orestias hardini Parenti, 1984 | Orestias hardini | 50471 |
| Cyprinodon higuey Rodriguez & Smith, 1990 | Cyprinodon higuey | 50471 |
| Cyprinodon hubbsi Carr, 1936 | Cyprinodon hubbsi | 42871 |
| Orestias humboldti Valenciennes, 1846 | Orestias cuvieri | 50471 |
| Orestias imarpe Parenti, 1984 | Orestias imarpe | 50471 |
| Orestias incae Garman, 1895 | Orestias incae | 50471 |
| Cyprinodon inmemoriam Lozano-Vilano & Contreras-Balderas, 1993 | Cyprinodon inmemoriam | 26729 |
| Orestias ispi Lauzanne, 1981 | Orestias ispi | 50471 |
| Cyprinodon jamaicensis Fowler, 1939 | Cyprinodon riverendi | 50471 |
| Cyprinodon julimes De la Maza-Benignos & Vela-Valladares, 2009 | Cyprinodon julimes | 84738 |
| Orestias jussiei Valenciennes, 1846 | Orestias jussiei | 50471 |
| Orestias jussiei puni Tchernavin, 1944 | Orestias puni | 50471 |
| Cyprinodon labiosus Humphries & Miller, 1981 | Cyprinodon labiosus | 50471 |
| Cyprinodon laciniatus Hubbs & Miller, 1942 | Cyprinodon laciniatus | 5521 |
| Orestias langui Tchernavin, 1944 | Orestias agassizii | 50471 |
| Orestias lastarriae Philippi, 1876 | Orestias lastarriae | 42871 |
| Cyprinodon latifasciatus Garman, 1881 | Cyprinodon latifasciatus | 3881 |
| Orestias laucaensis Arratia, 1982 | Orestias laucaensis | 50471 |
| Pseudorestias lirimensis Arratia, Vila, Lam, Guerrero & Quezada-Romegialli, 2017 | Pseudorestias lirimensis | 116745 |
| Cyprinodon longidorsalis Lozano-Vilano & Contreras-Balderas, 1993 | Cyprinodon longidorsalis | 26729 |
| Orestias luteus Valenciennes, 1846 | Orestias luteus | 50471 |
| Cyprinodon macrolepis Miller, 1976 | Cyprinodon macrolepis | 81264 |
| Cyprinodon macularius Baird & Girard, 1853 | Cyprinodon macularius | 5723 |
| Cyprinodon macularius eremus Miller & Fuiman, 1987 | Cyprinodon eremus | 58358 |
| Cyprinodon macularius sonoytae Peterson, 1993 | Cyprinodon macularius | 26282 |
| Cyprinodon maya Humphries & Miller, 1981 | Cyprinodon maya | 50471 |
| Cyprinodon meeki Miller, 1976 | Cyprinodon meeki | 3881 |
| Cyprinodon milleri LaBounty & Deacon, 1972 | Cyprinodon salinus | 86798 |
| Orestias minimus Tchernavin, 1944 | Orestias minimus | 50471 |
| Orestias minutus Tchernavin, 1944 | Orestias minutus | 50471 |
| Orestias mooni Tchernavin, 1944 | Orestias mooni | 50471 |
| Orestias mulleri Valenciennes, 1846 | Orestias mulleri | 50471 |
| Orestias multiporis Parenti, 1984 | Orestias multiporis | 50471 |
| Orestias mundus Parenti, 1984 | Orestias mundus | 50471 |
| Cyprinodon mydrus Goode & Bean, 1882 | Floridichthys carpio | 27139 |
| Cyprinodon nazas Miller, 1976 | Cyprinodon nazas | 3881 |
| Cyprinodon nevadensis Eigenmann & Eigenmann, 1889 | Cyprinodon nevadensis | 86798 |
| Cyprinodon nevadensis amargosae Miller, 1948 | Cyprinodon nevadensis | 86798 |
| Cyprinodon nevadensis calidae Miller, 1948 | Cyprinodon nevadensis | 86798 |
| Cyprinodon nevadensis mionectes Miller, 1948 | Cyprinodon nevadensis | 86798 |
| Cyprinodon nevadensis pectoralis Miller, 1948 | Cyprinodon nevadensis | 86798 |
| Cyprinodon nevadensis shoshone Miller, 1948 | Cyprinodon nevadensis | 86798 |
| Orestias neveui Pellegrin, 1904 | Orestias albus | 50471 |
| Cyprinodon nichollsi Smith, 1989 | Cyprinodon nichollsi | 50471 |
| Orestias olivaceus Garman, 1895 | Orestias olivaceus | 50471 |
| Orestias ortonii Cope, 1876 | Orestias agassizii | 50471 |
| Esox ovinus Mitchill, 1815 | Cyprinodon variegatus | 110348 |
| Orestias owenii Valenciennes, 1846 | Orestias jussiei | 50471 |
| Cyprinodon pachycephalus Minckley & Minckley, 1986 | Cyprinodon pachycephalus | 3881 |
| Orestias parinacotensis Arratia, 1982 | Orestias parinacotensis | 50471 |
| Cyprinodon pecosensis Echelle & Echelle, 1978 | Cyprinodon pecosensis | 5723 |
| Chriopeoides pengelleyi Fowler, 1939 | Cubanichthys pengelleyi | 27139 |
| Orestias pentlandii Valenciennes, 1839 | Orestias pentlandii | 36579 |
| Orestias pentlandii Valenciennes, 1846 | Orestias pentlandii | 50471 |
| Orestias pentlandii fuscus Garman, 1895 | Orestias pentlandii | 50471 |
| Orestias piacotensis Vila, 2006 | Orestias piacotensis | 57710 |
| Cyprinodon pisteri Miller & Minckley, 2002 | Cyprinodon pisteri | 43452 |
| Orestias polonorum Tchernavin, 1944 | Orestias polonorum | 50471 |
| Garmanella pulchra Hubbs, 1936 | Garmanella pulchra | 50471 |
| Cyprinodon radiosus Miller, 1948 | Cyprinodon radiosus | 5723 |
| Lebias rhomboidalis Valenciennes, 1821 | Cyprinodon variegatus | 27139 |
| Orestias richersoni Parenti, 1984 | Orestias richersoni | 50471 |
| Trifarcius riverendi Poey, 1860 | Cyprinodon riverendi | 50471 |
| Orestias robustus Parenti, 1984 | Orestias robustus | 50471 |
| Orestias rospigliosii Eigenmann & Allen, 1942 | Orestias agassizii | 50471 |
| Orestias rotundipinnis Parenti, 1984 | Orestias luteus | 50471 |
| Cyprinodon salinus Miller, 1943 | Cyprinodon salinus | 86798 |
| Cyprinodon salvadori Lozano-Vilano, 2002 | Cyprinodon salvadori | 52299 |
| Orestias silustani Allen, 1942 | Orestias silustani | 50471 |
| Cyprinodon simus Humphries & Miller, 1981 | Cyprinodon simus | 50471 |
| Cyprinodon suavium Strecker, 2005 | Cyprinodon suavium | 55026 |
| Orestias taquiri Tchernavin, 1944 | Orestias taquiri | 50471 |
| Orestias tchernavini Lauzanne, 1981 | Orestias tchernavini | 50471 |
| Cyprinodon tecopa Baker Carr, 1975 | Cyprinodon nevadensis | 27139 |
| Cualac tessellatus Miller, 1956 | Cualac tessellatus | 3881 |
| Orestias tirapatae Boulenger, 1902 | Orestias agassizii | 50471 |
| Orestias tomcooni Parenti, 1984 | Orestias tomcooni | 50471 |
| Orestias tschudii Castelnau, 1855 | Orestias tschudii | 50471 |
| Cyprinodon tularosa Miller & Echelle, 1975 | Cyprinodon tularosa | 5723 |
| Orestias tutini Tchernavin, 1944 | Orestias tutini | 50471 |
| Orestias uruni Tchernavin, 1944 | Orestias uruni | 50471 |
| Orestias ututo Parenti, 1984 | Orestias ututo | 50471 |
| Orestias uyunius Fowler, 1940 | Orestias agassizii | 50471 |
| Cyprinodon variegatus Lacepède, 1803 | Cyprinodon variegatus | 86798 |
| Cyprinus variegatus Bosc, 1803 | Cyprinodon variegatus | 26282 |
| Cyprinodon variegatus artifrons Hubbs, 1936 | Cyprinodon artifrons | 30499 |
| Cyprinodon verecundus Humphries, 1984 | Cyprinodon verecundus | 50471 |
| Cyprinodon veronicae Lozano-Vilano & Contreras-Balderas, 1993 | Cyprinodon veronicae | 26729 |