Morphology Data of Placidochromis hennydaviesae
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
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: lower jaw length 40.9-46.5 % head length; premaxillary pedicel 26.8-31.3 % head length; body depth 32.8-35.7 %SL; outer oral jaw teeth tricuspid; cheek depth 20.0-23.5 % head length; interorbital width 20.0-22.4 % head length; head width 41.6-44.5 % head length (Ref. 55898).

Description: relatively small with normal body shape; ventral body profile slightly convex, almost straight; head relatively large; snout pointed and angular; mouth large; gape inclined at more than 20° to horizontal; maxilla extending well beyond vertical at anterior margin of eye; eyes large, upper margin of eye touching dorsal head profile; outer oral teeth tricuspid, a few unicuspid posteriorly; inner oral teeth tricuspid and unicuspid; 2-3 series of scales on cheek; lower pharyngeal jaw normal in shape, all teeth small and slender; gill-rakers on lower part of ceratobranchial short but slender, on upper part long and slender, many deeply forked (Ref. 55898).

Coloration: Preserved mature males: body brownish yellow; 6 dark vertical bars below dorsal fin; snout, chin and belly dark; dorsal fin with broad grey band, white lappets and tips; soft dorsal fin with 2 oblique grey bands; caudal fin with dark submarginal; anal and pelvic fins with dark leading edge (Ref. 55898).

Ease of Identification

Meristic characteristics of Placidochromis hennydaviesae

Lateral Lines Interrupted: No
Scales on lateral line 31 - 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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 9 - 11
on upper limb 4 - 5
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 14 - 15
Soft-rays total 9 - 10
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   15 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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