Morphology Data of Sarotherodon melanotheron
Identification keys
Abnormalities
Main Ref. Trewavas, E., 1983
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral short and / or deep
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales
Diagnosis

Diagnosis: length of caudal peduncle 0.6-0.9 times in its depth (Ref. 53405). Melanin pattern in mature fishes including black patches on lower parts of head, 4-7 vertical bars of irregular shape on flanks and bar on base of caudal; 1-4 black spots on basal part of dorsal fin, sometimes bounded by with white tilapia-mark; no conspicuous black tips at corners of caudal fin (Ref. 2).

Description: outer jaw teeth bicuspid, inner jaw teeth tricuspid, posterior teeth on pharnygeal bone bicuspid; lower pharyngeal bone long and narrow; micro-gillrakers present; scales cycloid (Ref. 53405).

Coloration: in life: ground colour silvery ; upper lip, snout, occiput and anterior part of back yellowish-green, lower lip white; some black spots just below lower lip, belly white; scales on sides grey-edged, with yellow spot at centre; grey scale margins confluent, forming some irregular black spots or vertical bars; dorsal, anal and caudal fins greyish, soft part of dorsal fin with some transparent spots; upper margin of dorsal and caudal fins yellow-orange; 1-3 black spots along base of soft part of dorsal fin; some black spots at base of caudal fin; anterior margin of pelvics yellowish-white (Ref. 53405).

Ease of Identification

Meristic characteristics of Sarotherodon melanotheron

Lateral Lines 2 Interrupted: No
Scales on lateral line 27 - 30
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 3 - 3.5
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only) absent
Gill rakers
on lower limb 14 - 19
on upper limb
total
Vertebrae
preanal
total 27 - 28

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 15 - 16
Soft-rays total 11 - 14
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 7 - 11

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    thoracic
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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