Main Ref. | De Vos, L. and D.F.E. Thys van den Audenaerde, 1990 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Females generally attain a larger size than males (Ref. 52193). |
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 |
Diagnosis: Last unbranched ray of dorsal fin thorny, long and with posterior denticulation; barbels not well developed, anterior barbel very short, just reaching the posterior side of the maxilla, posterior barbel just reaching the middle of the eye (Ref. 27628). Dorsal side brown-silver coloured, ventral side silver, with a darker band on the flanks; fins not coloured (Ref. 27628). Description: Head pointed, mouth small, with 2 pairs of short barbels (Ref. 52193). Dorsal fin with 3 spines and 7-8 soft rays; anal fin with 3 unbranched and 5-7 branched rays; Primary dorsal fin ray serrated on distal half, hind margin of erect dorsal fin vertical (Ref. 27628, 52193). Scales in lateral line 32-40, 16-18 around caudal peduncle (Ref. 27628, 52193). Colouration: Plain olive grey or silvery in turbid waters, a thin sideline sometimes present (Ref. 52193). Fins not coloured (Ref. 27628). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | 32 - 40 |
Scale rows above lateral line | 7.5 - 7.5 |
Scale rows below lateral line | 3.5 - 3.5 |
Scales around caudal peduncle | 16 - 18 |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 3 - 3 |
Soft-rays total | 7 - 8 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 8 - 10 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays |