| Main Ref. | Kramp, P.L., 1961 |
| Appearance refers to |
| specialized organs | |
| different appearance | |
| different colors | |
| remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis | 16 to 32 cm wide, faintly arched, central portion very thick, margin, thin exumbrella with pointed papillae, 15 to 30 cm long; 11 to 21 rhopalis; velar lappets up to 9.5 cm long with slender, thred-like extremities, 1-6 between adjacent rhopalia; mouth-arms broad, three-winged, up to 14.5 cm long, each with 1 to 4 window like openings and with filaments up to 13 cm long and a long spindle-shaped terminal appendage; 20 to 34 radial canals, inter-rhopalar canals effaced beyond ring canal. |
| 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 | |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| spines | |
| soft-rays | |
| Pelvics | Attributes |
| Position | |
| spines | |
| soft-rays |