Morphology Data of Placidochromis orthognathus
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 short and / or deep
Cross section
Dorsal head profile clearly convex
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: gape steeply inclined, at about 45° to horizontal (Ref. 55898).

Description: dorsal and ventral body profiles about equally convex and symmetric about the horizontal; dorsal head profile convex above eyes, slightly concave between eyes; snout profile straight; mouth of moderate size; maxilla not extending to vertical at anterior margin of eye; outer oral teeth short, stout and bicuspid; inner oral teeth tricuspid; 3 series of scales on cheek; eye small; upper margin of eye not touching dorsal head profile; lower pharyngeal jaw wide; all pharyngeal teeth small and slender; gill-rakers on lower limb relatively long (Ref. 55898).

Coloration: Preserved: body brownish yellow; 7 vertical bars below dorsal fin, only visible on dorsal part of body; nape, snout and lips dark brown; dorsal fin brown with dark lappets and tips; caudal and anal fins grey; ventral fin yellowish (Ref. 55898).

Ease of Identification

Meristic characteristics of Placidochromis orthognathus

Lateral Lines Interrupted: No
Scales on lateral line 36
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 11
on upper limb 3
total 15
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 17
Soft-rays total 9
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3
Soft-rays total 8

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   14
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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