Main Ref. | Murdy, E.O. and C.J. Ferraris Jr., 2003 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | fusiform / normal |
Cross section | oval |
Dorsal head profile | |
Type of eyes | other (see remarks) |
Type of mouth/snout | other (see remarks) |
Position of mouth | |
Type of scales | scales embedded or partly/completely absent |
Diagnosis |
Pterygiophore formula 3-12210; having only 1 anal-fin pterygiophore anterior to first haemal spine. Absence of the following: Y-shaped second anal-fin pterygiophore, chin barbels, scales, raised dermal folds or ridges, and cephalic sensory canals and pores. Short pleural ribs posteriorly directed. Vertical mouth large; lips fleshy especially at rictus. Eyes rudimentary, but distinct; covered by skin. Posterior naris lateral to, and slightly anterior to, eye. Anterior naris at tip of small flap of skin overhanging upper jaw. Dorsal-fin base long and broadly joined with caudal fin; anal-fin membrane also broadly joined with caudal fin. Pectoral fin margin rounded posteriorly. Pelvic fin with well-developed frenum and connecting membrane forming cup-shaped disc. Caudal fin slightly longer than head. Head depressed with a slightly compressed body. (Ref. 45979). |
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 | 10 - 10 |
total | 26 - 26 |
Attributes | |
Fins number | 2 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 6 - 6 |
Soft-rays total | 33 - 33 |
Adipose fin | absent |
Attributes |
Fins number | 1 |
Spines total | |
Soft-rays total | 26 - 26 |
Pectoral | Attributes |
Spines 0 | |
Soft-rays 16 - 16 | |
Pelvics | Attributes |
Position | |
Spines 1 | |
Soft-rays 5 - 5 |