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 | 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: 21-25 rakers on lower limb of first arch; length of lower pharyngeal jaw < 43.5% of head length; 29-32 scales in lateral line series; head length 32.5-39% of standard length; toothed area of lower pharyngeal jaw broad > 2-3 times in keel length (Ref. 81260). Description: head length 32.5-35.5% SL; lower pharyngeal jaw with unicuspid anterior teeth and straight posterior teeth; ventral keel elongate, longer than dentigerous plate; 1-4 rows of teeth in oral jaws, outer row teeth bicuspid (Ref. 81260). Coloration: bluish grey, blue-purple dorsally, grey-white ventrally; 4-6 faint, narrow, vertical bars on flank and caudal peduncle; bars on flank thin and often extending well below level of mid-body; upper lip same color as upper part of snout, lower lip pale or whitish, same color as throat and chest; dorsal fin bluish grey, 2 rows of round clear maculae in interspinous membrane, maculae becoming more numerous in soft dorsal; "tilapia spot" only faintly evident, or absent; caudal fin dark bluish grey with clear maculae medially; anal fin dark bluish grey, more clear in upper part where there are sometimes clear maculae (Ref. 81260). |
Ease of Identification |
Lateral Lines | 2 Interrupted: No |
Scales on lateral line | 29 - 32 |
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) | absent |
Gill rakers | |
on lower limb | 19 - 25 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 28 - 30 |
Attributes | extending over most of the back length |
Fins number | 1 |
Finlets No. | Dorsal 0 |
Ventral 0 | |
Spines total | 15 - 17 |
Soft-rays total | 12 - 13 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 3 - 3 |
Soft-rays total | 9 - 11 |
Pectoral | Attributes more or less normal |
Spines 4 | |
Soft-rays 8 | |
Pelvics | Attributes more or less normal |
Position thoracic | |
Spines | |
Soft-rays |