| Main Ref. | Sazonov, Y.I., 1999 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Body relatively deep, about 20%SL. Caudal peduncle moderately long (<18%SL). Vertical fin bases almost opposite to each other, the length of bases <20% SL. Head relatively deep and wide (eye width >10%SL). Snout relatively short, length not reaching orbit diameter; olfactory bulbs very big; ethmoid in olfactory bulb region very narrow. Eyes very large. Photophores present on the head, along the rays of the gill membrane and on the surface of the lower jaw seismosensory canals; also on the membranes of A,P, and V. Pyloric caeca < 10. (Ref. 36330). |
| 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 | |
| total | 47 - 47 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 18 - 21 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 17 - 21 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 7 - 9 | |
| Pelvics | Attributes |
| Position abdominal | |
| Spines | |
| Soft-rays 7 - 7 |