| Main Ref. | Iwatsuki, Y., S.J. Newman, F. Tanaka and B.C. Russell, 2018 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is diistinguished from P. waigiensis by the following set of characters: whole of head and body dense black or brownish colour; pored lateral-line scales same colour of other scales of body, not yellow-edged like P. waigiensis, same dark colour persisting even in preserved specimens; pored lateral-line scales, 49-54; hind margin of maxilla reaching vertically beyond center of eye when mouth is closed; pelvic-fin spine slightly longer than 4th dorsal spine; circumpeduncular scales 25-26; shallower body depth, 23-30% (mean 28%) of SL; greater number of scale rows above and below lateral line 6½ / 11½-12½; gill rakers 7 (including 6 rudiments) + 1 + (12-14 (3-4 rudiments) = 20-24 (9-10 rudiments); last dorsal-fin spine / penultimate dorsal-fin spine 0.9-1.1 (Ref. 124584). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 52 - 54 |
| Scales in lateral series | |
| Scale rows above lateral line | 6.5 - 6.5 |
| Scale rows below lateral line | 11.5 - 11.5 |
| 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 | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 8 - 8 |
| Soft-rays total | 12 - 12 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 8 - 8 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 16 - 17 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |