| Main Ref. | Castle, P.H.J. and J.E. Randall, 1999 |
| 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 |
Slender species with 38-44 preanal pores, dorsal fin origin over middle of pectoral fin, and body color of minute, closely packed, dark spots that are more prominent above lateral line, widely spaced dark spots along edge of dorsal fin, white postorbital patches, a silver iris prominently edged with black, and dark peritoneal pigment ventrally on abdomen. |
| Ease of Identification | likely to be confused with closely related species. |
| Lateral Lines | 1 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 | 64 - 72 |
| total | 178 - 188 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | |
| Adipose fin |
| Attributes | pointed; confluent |
| Fins number | 1 |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes other (see diagnosis) |
| Spines 0 | |
| Soft-rays 12 - 12 | |
| Pelvics | Attributes suppressed/absent |
| Position | |
| Spines 0 | |
| Soft-rays 0 - 0 |