| Main Ref. | Greenfield, D.W., 2002 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Genital papilla of male short and pointed, its length about 1/6 of first anal element. In female short and broad. |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | other (see remarks) |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Eyes very large, situated dorsally. Mouth rather large, very oblique, protractile. Differs from P. paradoxus by having a much larger eye, shorter snout, and narrower interorbital width. Body scales extend forward on sides past the first dorsal fin origin (vs. extending forward only to beneath the soft dorsal fin). |
| 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 | 13 - 13 |
| on upper limb | 2 - 2 |
| total | 15 - 15 |
| Vertebrae | |
| preanal | |
| total | 27 - 27 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 8 - 8 |
| Soft-rays total | 17 - 18 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 18 - 19 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 21 - 21 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |