Morphology Data of Placidochromis ordinarius
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 clearly convex
Type of eyes more or less normal
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: head length 34.6-37.3 %SL; snout length 32.7-35.5 % head length; lower jaw length 34.5-38.6 % head length; premaxillary pedicel length 27.3-30.4 % head length; outer oral dentition well-developed bicuspid; 1/1 inner oral tooth rows; lachrymal depth 21.4-23.2 % head length; cheek depth 21.8-24.4 % head length; interorbital width 16.5-20.0 % head length (Ref. 55898).

Description: dorsal body profile strongly convex; ventral body profile almost straight; dorsal head profile convex above eye; snout profile straight; snout of moderate size and pointed; mouth normal; gape inclined at about 10° to horizontal; maxilla extending to vertical at anterior margin of eye; outer oral teeth long and slender, bicuspid or tricuspid anteriorly, becoming unicuspid posteriorly; inner oral teeth small, short and tricuspid; 2-3 series of scales on cheek; upper margin of eye touching dorsal head profile; lower pharyngeal jaw stout; a series of enlarged pharyngeal teeth along centre of toothed area; gill-rakers on lower limb short (Ref. 55898).

Coloration: Preserved: Females and immature males: body pale yellowish brown; 6-7 pale brown to brown vertical bars below dorsal fin; base of dorsal fin pale grey; dorsal fin with white submarginal band and dark grey tips; grey oblique bands in soft dorsal; all other fins pale (Ref. 55898).

Ease of Identification

Meristic characteristics of Placidochromis ordinarius

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 - 16
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 8 - 10
on upper limb 3 - 4
total 12 - 15
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 10 - 11
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   14 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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