| Main Ref. | Whitehead, P.J.P., 1985 |
| Appearance refers to | |
| 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 | elongated |
| 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 | superior |
| Type of scales | cycloid scales |
| Diagnosis |
Diagnosis: The slightly shorter pectoral fin, 11-13% of standard length, and the black marking of the upper part of the dorsal fin are the only satisfactory characters separating this species from Chirocentrus nudus; there is also some black on the anterior part of the anal fin (Ref. 188). Description: With numerous dagger-like teeth (Ref. 37816). Lower gillrakers 12-16 (Ref. 6595). Pectoral fin shorter than distance between eye centre and hind border of gill cover, 11-13% of standard length; dorsal fin with 4-5 unbranched and 12-14 branched rays; anal fin with 3-4 unbranched and 26-32 branched rays; pectoral fin with 1 unbranched and 13-15 branched rays; pelvic fin with 1 unbranched and 6-7 branched rays (Ref. 2871, 6595, 30573). Scales numerous, small, usually lost (Ref. 6595, 37816). Belly without scutes (Ref. 6595). Colouration: Silvery; back bright blue, fading to grey; flanks bright silver (Ref. 37816). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| 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) | |
| Gill rakers | |
| on lower limb | 12 - 16 |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 16 - 19 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 29 - 36 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 14 - 16 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines 0 | |
| Soft-rays 7 - 8 |