Main Ref. | Stiassny, M.L.J., A. Lamboj, D. De Weirdt and G.G. Teugels, 2008 |
Appearance refers to | Male; Female |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | males alike females |
Remarks |
Striking features | none |
Body shape lateral | short and / or deep |
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 | terminal |
Type of scales | cycloid scales |
Diagnosis |
Diagnosis: 14-18 rakers on lower limb of first arch; 30-31 scales in lateral line (Ref. 81260). Body silver-grey, with mid-lateral black band interrupted anteriorly on caudal peduncle (Ref. 2, 81260). Head length 33.0-38.4% of standard length; jaw teeth with slender shafts and broad crowns (Ref. 81260). Mature fishes of both sexes with variable black areas on lower jaw and lower parts of head; no tilapia-mark (Ref. 2). Description: lower pharyngeal jaw with unicuspid anterior and posterior teeth; ventral keel elongate longer than, or as long as, dentigerous plate; 4-7 rows of teeth in oral jaws, outer row teeth bicuspid (Ref. 81260). Coloration: silvery grey (Ref. 2, 81260), with a mid-lateral black band extending from opercle to caudal fin base (Ref. 2, 52307, 81260), often interrupted anteriorly on caudal peduncle (Ref. 2, 81260). Adults may have black spots or blotches on lower jaw and/or preopercle; body of juveniles pearly; pelvics and anterior part of anal fin tinted with vermillion or orange (Ref. 81260). No "tilapia" spot present (Ref. 2, 81260). Black spot often present at origin of caudal fin (Ref. 52307). |
Ease of Identification |
Lateral Lines | 2 Interrupted: No |
Scales on lateral line | 30 - 31 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 3 - 4 |
Scale rows below lateral line | |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | absent |
Gill rakers | |
on lower limb | 14 - 18 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 29 |
Attributes | extending over most of the back length |
Fins number | 1 |
Finlets No. | Dorsal 0 |
Ventral 0 | |
Spines total | 15 - 17 |
Soft-rays total | 10 - 12 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 3 - 3 |
Soft-rays total | 8 - 10 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position thoracic beneath origin of D1 | |
Spines | |
Soft-rays |