| Main Ref. | Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984 |
| 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 | Mantle about half as broad as long; tentacular club long, slender with 10-12 minute, subequal suckers in each row across the club in males, 13-14 suckers across in females, club protective membranes not united, extending proximally along oral face of stalk as lo ridges, Left arm IV hectocotylized: about 12 normal suckers (3 series) proximally followed by about 5 or 6 series of very small suckers in ventral longitudinal rows, corresponding suckers of dorsal longitudinal rows extremely minute (or absent) in a deep, smooth groove, suckers normal distally, Color: dorsal mantle with a fine, dark-pigmented, transverse, reticulate color pattern, a pale reflective line along bases of fins (Ref. 275). |
| 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 |