Morphology Data of Pelmatochromis nigrofasciatus
Identification keys
Abnormalities
Main Ref. Stiassny, M.L.J., A. Lamboj, D. De Weirdt and G.G. Teugels, 2008
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: rather deep-bodied (40.0-47.0% SL), greatest depth well behind dorsal fin origin; head moderately large (length 34.0-37.2% SL); wide interorbital (33.5-41% HL); mouth terminal and small; jaws (specimens >60 mm SL) with outer row teeth evenly spaced conical, unicuspid, 2-4 rows of smaller unicuspid inner teeth; smaller individuals often with some shouldered unicuspid or bicuspid teeth in jaws; caudal peduncle short and deep (Ref. 81260). Soft dorsal and anal fins produced in adults, extending well over caudal fin in males (Ref. 52307, 81260). Caudal fin truncate and heavily scaled over base; 3.5-4 scales between upper lateral line and dorsal fin origin; lanceolate epibranchial rakers; tips of pelvic fins in males reach well beyond the spinous anal fin (Ref. 81260).

Description: frontal profile straight; snout relatively short (Ref. 52307).

Coloration: live color of specimens from Democratic Republic of Congo (vicinity of Kinshasa): base body coloration of pale yellowish gold with metallic green iridescent spotting on scales of cheek and anteroventral flank; well-developed supraorbital, interorbital and internasal stripes; opercular spot extremely well-developed, in mid-line series with a row of 6 black blotches and faint vertical stripes; a second row of smaller blotches in a diffuse horizontal band is frequently present between mid-line row and dorsal fin base; Pelmatochromis spot at base of first 5-6 dorsal rays extends down onto dorsum in females and juveniles, slightly less well marked in large males; dorsal, caudal and anal fins with rows of dark maculae, proximally in anal fin these are often deep red (Ref. 81260).

Ease of Identification

Meristic characteristics of Pelmatochromis nigrofasciatus

Lateral Lines Interrupted: No
Scales on lateral line 26 - 27
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 16 - 16
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 9 - 14
on upper limb 6 - 8
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 14 - 15
Soft-rays total 10 - 11
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 8 - 10

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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