Morphology Data of Placidochromis koningsi
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 none
Body shape lateral fusiform / normal
Cross section
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth
Type of scales
Diagnosis

Diagnosis: head length 36.6-38.1 %SL; snout length 33.5-34.5 % head length; lower jaw length 33.5-34.5 % head length; outer oral teeth unicuspid; no inner oral tooth rows; premaxillary pedicel length 30.6-30.6 % head length; cheek depth 23.7-25.1 % head length; lachrymal depth 21.6-22.0 % head length; orbital width 41.5-42.9 % head width; lower pharyngeal dentition enlarged and molariform; body depth 38.8-39.6 %SL (Ref. 55898).

Description: dorsal body profile more strongly curved than ventral body profile; snout moderately long, pointed but not angular; gape inclined at about 20° to horizontal; maxilla extending to or just beyond vertical at anterior margin of eye; outer oral teeth unicuspid, long and slender, with recurved tips; no inner oral teeth; 3 series of scales on cheek; eye relatively large; upper margin of eye touching dorsal head profile; lower pharyngeal jaw normal in shape; central posterior pharyngeal teeth enlarged and molariform; gill-rakers on lower limb fairly short and stout (Ref. 55898).

Coloration: Preserved: Females: body beige; 6 faint vertical bars below dorsal fin, not extending onto belly; dorsal fin pale grey with dark tips; faint grey oblique bands on soft dorsal; all other fins pale yellowish (Ref. 55898).

Ease of Identification

Meristic characteristics of Placidochromis koningsi

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 10 - 10
on upper limb 3 - 3
total 14 - 14
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 9 - 10

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 )
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