| Main Ref. | Ho, H.-C., 2019 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This genus is distinguished by the following characters: with a ventral light organ; differs from all other genera in the family by having a genital papilla separated from anus by several small scales, a large pelvic fin with all rays elongated; snout broad and rounded, not shelf-like; palatines and vomer toothless; swimbladder with elongate projections that attached to openings at rear of the skull; pelvic-fin rays 7; first dorsal fin short-based, with 8 rays; second dorsal and anal fins long-based, with margins not indented (Ref. 121621). |
| 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 | 8 - 8 |
| on upper limb | 3 - 3 |
| total | 11 - 11 |
| Vertebrae | |
| preanal | 15 - 15 |
| total | 55 - 55 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 75 - 75 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 71 - 71 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 27 - 27 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 7 - 7 |