Main Ref. | Keith, P. and J. Allardi (coords.), 2001 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
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 |
Diagnosed from other congeners in Europe by the possession of the following characters: barbel reaching beyond anterior eye margin, usually to middle of eye; snout length greater than postorbital distance; head length 26-30% SL; eye diameter 5-7% SL; 1.0-1.4 times in interorbital distance in over about 6 cm SL specimens (less in smaller ones), 2.4-2.8 times in head depth; head depth 15-17% SL at nape, 43-51% HL at eye; body depth 19-23% SL; head width 14-16% SL, 49-57% HL; caudal peduncle depth 30-34% HL; breast naked between pectorals; scales between anus and anal origin 4-5; scales on lateral line usually 39-42 + 2; and scales around caudal peduncle usually 12-14 (Ref. 59043). Caudal fin with 19 rays (Ref. 2196). Scalar formula: 38-45 (Ref. 40476). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 39 - 44 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 5 - 6 |
Scale rows below lateral line | 3 - 5 |
Scales around caudal peduncle | 12 - 14 |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 39 - 41 |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 2 - 3 |
Soft-rays total | 5 - 7 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 2 - 3 |
Soft-rays total | 6 - 8 |
Pectoral | Attributes more or less normal |
Spines 1 | |
Soft-rays 12 - 16 | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 2 | |
Soft-rays 6 - 8 |