Morphology Data of Wallaceochromis humilis
Identification keys
Abnormalities
Main Ref. Teugels, G.G. and D.F.E. Thys van den Audenaerde, 2003
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: single series of conical teeth in jaws; body depth 24.4-35.2% of standard length; dorsal fin with 17-18 spines and 9-10 soft rays (Ref. 53405).

Description: head relatively long; snout pointed; frontal profile normally slightly rounded; mouth situated in a relatively inferior position; caudal fin rounded to more rhomboid; males (and rarely females) may possess slightly elongated rays in upper lobe of caudal fin (Ref. 52307). Outer and inner jaw teeth unicuspid, pharyngeal jaw teeth bicuspid; no micro-gillrakers; scales cycloid (Ref. 53405).

Coloration: great differences in colour pattern among populations exist; body brownish, belly yellowish to reddish and rather indistinct longitudinal band extending from snout to caudal fin; throat and cheeks yellow or turquoise; dark spot on opercle; unpaired fins yellowish-red or white; dorsal fin dark- and light-spotted, its distal margin, as well as upper caudal margin, red; anal fin black-edged; pectoral fins hyaline; pelvic fins red, with outer rays dark (Ref. 53405). Females generally lighter in color than males, with a rosy belly that becomes red to violet when ripe, anterior of these rosy parts there is a blue iridescent zone (Ref. 52307).

Ease of Identification

Meristic characteristics of Wallaceochromis humilis

Lateral Lines 2 Interrupted: No
Scales on lateral line 27 - 30
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 9 - 12
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 17 - 18
Soft-rays total 9 - 11
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 6 - 8

Paired fins

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