| Main Ref. | Britski, H.A. and J.C. Garavello, 2002 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Presence of a conspicuous urogenital papilla, positioned just after the anal opening in males; urogenital duct opens to the inner cloacal cavity in females; males with longer pelvic fin, tip extending beyond anal fin origin (Ref. 47353). |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Odontodes at tip of snout almost as long as wide, spatulate and with tip round or heart-shaped; first unbranched ray of pectoral fin with long and soft portion equivalent to one fourth to more than half length of hard part; arrector fossae aperture on each side of scapular bridge very wide, equivalent to about one fourth of body width; large naked area around anus; anterior dorsal profile strongly elevated from snout tip to median interorbital region, almost straight to dorsal-fin insertion, and almost parallel to longitudinal body axis; interorbital distance narrow, eye diameter 0.9-1.4 times in interorbital distance (Ref. 47353). |
| 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 | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 8 - 8 |
| Adipose fin | present |
| Attributes | more or less truncate; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 6 - 6 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 7 - 7 | |
| Pelvics | Attributes more or less normal |
| Position abdominal beneath origin of D1 | |
| Spines | |
| Soft-rays 6 - 6 |