Morphology Data of Placidochromis nkhatae
Identification keys
Abnormalities
Main Ref. Hanssens, M., 2004
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 more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth
Type of scales
Diagnosis

Diagnosis: snout length 37.2 % head length; lower jaw length 33.8 % head length; outer oral teeth mixed unicuspid with some unequally bicuspid or shouldered bicuspid teeth; premaxillary pedicel length 27.6 % head length; cheek depth 26.5 % head length; interorbital width 24.2 % head length; lower pharyngeal teeth enlarged and molariform; body depth 37.8 %SL (Ref. 55898).

Description: relatively heavy-built; dorsal body profile more strongly convex than ventral body profile; dorsal head profile almost straight, slightly concave between eyes; premaxillary pedicel prominent; jaws heavy; gape inclined at about 15-20° to horizontal; maxilla extending to vertical at anterior margin of eye; outer oral teeth large and robust, bicuspid or shouldered bicuspid anteriorly, quickly becoming unicuspid posteriorly; inner oral teeth much smaller than outer teeth, mixed tricuspid and unicuspid, slender; 3 series of scales on cheek; eye relatively small; upper margin of eye not touching dorsal head profile; lower pharyngeal jaw very robust with wide toothed area; central posterior teeth of lower pharyngeal jaw enlarged and molariform; gill-rakers on lower limb very short, most of them branched with 3 tips; upper gill-rakers somewhat longer, with a single tip (Ref. 55898).

Coloration: Preserved: Immature male: body brownish yellow; 7 faint vertical bars below dorsal fin; dorsal fin pale greyish with darker grey tips; soft dorsal with oblique grey bands; caudal fin with grey spots on inter-radial membranes; anal and ventral fins with darker leading edge (Ref. 55898).

Ease of Identification

Meristic characteristics of Placidochromis nkhatae

Lateral Lines Interrupted: No
Scales on lateral line 32
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 16
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 8
on upper limb 4
total 13
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 16
Soft-rays total 10
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3
Soft-rays total 9

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   14
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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