| Main Ref. | Desoutter, M. and F. Chapleau, 1997 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | short and / or deep |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Neural spine of second pre-caudal vertebra very long and curved anteriorly reaching to about one-half the length of the neurocranium; caudal fin entirely free from dorsal and anal fins, eyed side posterior nostril tube-like with a small pore opening just above labial groove. Pectoral fins filiform with less than four rays. Body pale brown in color with a variable number (3-5) of darker blotches along the body midline, along the dorsal fin (4-6) and the anal fin (3-5). More or less longitudinal rows of blotches are often observed on well-pigmented specimens. Branchial cavity and peritoneum darkly pigmented. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 79 - 89 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total | 43 - 44 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 75 - 81 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 59 - 64 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |