| Main Ref. | Pitruk, D.L., 1992 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Head and mouth small. Ventral (abdominal) disk well developed. Seismosensory system: large pores, channels of coronal and postcoronal, pores of temporal canal, and the last pores of infraorbital and preoperculomandibular canals significantly protruding above skin in the form of tubules. Branchiostegal rays 6. Pyloric caeca 8. Eyes well developed (Ref. 41399). |
| 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 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 34 - 39 |
| Adipose fin |
| Attributes | more or less truncate; confluent |
| Fins number | |
| Spines total | |
| Soft-rays total | 30 - 33 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 27 - 30 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |