| Main Ref. | Allen, G.R. and M.V. Erdmann, 2012 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Second dorsal spine elongated in males (Ref. 90102). |
| Striking features | none |
| Body shape lateral | fusiform / normal |
| Cross section | circular |
| Dorsal head profile | clearly convex |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Description: Dorsal fin XVI-XVII, 17-18, spines with filamentous tips, the 2nd dorsal spine elongated particularly in males; anal fin II, 23-24; pectoral rays 15; pelvic fin I,4; unbranched caudal rays; last anal ray bound to caudal fin by a membrane. Mouth with numerous movable jaw teeth; crenulated lips margin; lower lip with fleshy disc, cup-shaped. Both sexes with occipital crest; nuchal cirri absent; supraorbital cirrus pinnate; nasal cirrus small and simple (Ref. 559, 90102). Body elongate; depth at anal fin origin 7.5-8.5 in SL. Overall greyish brown, ventrally white; body with spotty vertical bars; head and base of pectoral fin with spots, brown and small (Ref. 90102). |
| 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 | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1notched No |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 16 - 17 |
| Soft-rays total | 17 - 18 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 24 - 25 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 15 - 15 | |
| Pelvics | Attributes more or less normal |
| Position jugular beneath origin of D1 | |
| Spines 1 | |
| Soft-rays 4 - 4 |