| Main Ref. | Allen, G.R., 2001 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Pectoral fin rays simple; spinous dorsal fin moderately elongate in both sexes, second and third rays longest, fifth pelvic fin ray well developed, two-tenths to three-tenths length of fourth ray; cephalic sensory pore system lacking IT and PITO pores, and AITO pore single (except double in smallest paratype) and very small; posterior rays of second dorsal and anal fins elongate, forming a lanceolate shape; preserved specimens generally whitish with dark pigment along base of anal fin, extending along ventral edge of caudal peduncle; small dark spot usually present at lower caudal fin base; nostrils dark and pair of brown spots of variable intensity usually present on top of head, just behind eyes (Ref. 44113). |
| 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 | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 7 - 7 |
| Soft-rays total | 9 - 9 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 8 - 8 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 16 - 17 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 4 - 4 |