Morphology Data of Tilapia guinasana
Identification keys
Main Ref. Lamboj, A., 2004
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

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

Description: moderately slender; frontal profile slightly concave; neither sex has noticeably elongated dorsal or anal fin rays (Ref. 52307).

Coloration: polychromatic color pattern unique among Tilapia; 6 color morphs currently recognized: dark blue, blue striped, olive, olive striped, pale blue and black; throat, belly and anal fin dusky to blackish in first 2 morphs mentioned; blue morph with blue head, body, dorsal and caudal fin; olive striped morph more bluish-silvery with olive-yellow dots and stripes on body, and with bluish mouth; pale morph with pale throat and some darker shading on belly, its flanks whitish to pale blue, upper parts of head, opercles and back are dusky blue, pelvic, dorsal, anal and caudal fins also pale except anterior part of dorsal fin which is dusky; "tilapia"-spot only visible in small specimens, absent from sub-adult and adult fish (Ref. 52307).

Ease of Identification

Meristic characteristics of Tilapia guinasana

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

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

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
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