Main Ref. | Paugy, D., 2003 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | always different morphology between mature adults |
Different colors | |
Remarks | Sexual dimorphism in anal fin shape (Ref. 2880, 81279). |
Striking features | none |
Body shape lateral | fusiform / normal |
Cross section | |
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: small, elongate fish with incomplete lateral line; scaleless dorsal part (of about at least 3 scale rows wide on both sides) from behind the opercle to the adipose fin; parietal fontanella open (Ref. 2880, 81279). Description: dorsal-fin origin behind level of pelvic-fin insertions which are positioned at about mid-length of body; anal fin with 3 unbranched and 13-14 branched rays; anal fin short, sexually dimorphic like in many other Alestidae; premaxilla with 4 outer and 8 inner teeth; mandible with single row of 8 outer teeth; 34 or 35 scales in a longitudinal, and 7 or 9 scales in a transverse series (Ref. 2880, 81279). Coloration: live specimens have odd, some peer fins (Ref. 81279). Eyes bright red; unbranched rays of dorsal and caudal fin, and the tips of branched rays are black; no humeral spot; after preservation lateral band becomes black and appears from the opercle up to the median rays of caudal fin (Ref. 2880, 81279). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | 34 - 35 |
Scale rows above lateral line | 2 - 3 |
Scale rows below lateral line | 7 - 9 |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 11 - 12 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | |
Adipose fin | present |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 16 - 17 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays |