| Main Ref. | Smith, D.G. and E.S. Karmovskaya, 2003 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | eel-like |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
A small species distinguished by a short bluntly-rounded snout and large brown spot at origin of dorsal fin. Maxillary and mandibular teeth pointed or bluntly conical, close-set in outer series, biserial for the most of length of jaws. Intermaxillary teeth in two transverse rows. Pre-anal lateral line pores 36-39, predorsal length 18-19% TL, upper jaw 33-38% HL (Ref. 50529). Caudal fin reduced (Ref. 50529). |
| 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 | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | 40 - 43 |
| total | 113 - 115 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 229 - 252 |
| Adipose fin |
| Attributes | other (see remark); confluent |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 147 - 167 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 13 - 14 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |