Main Ref. | Pitruk, D.L. and V.V. Federov, 1990 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | sub-terminal/inferior |
Diagnosis |
Abdominal disk large, its rays long, fine under thin skin over entire length; a narrow free fold of skin around the disk with unthickened bordering edge, two anterior rays attached to anterior process of pelvis; jaw teeth simple with blunt cusps, with lateral cusps in the posterior rows; pores of the seismosensory system on the head not enlarged; single suprabranchial pore; pectoral fin without notch; pleural ribs absent; epipleural ribs present; one reduced epural (Ref. 41724). |
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 | 9 - 9 |
Vertebrae | |
preanal | |
total | 55 - 59 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 52 - 53 |
Adipose fin | absent |
Attributes | pointed; confluent |
Fins number | |
Spines total | 0 - 0 |
Soft-rays total | 46 - 49 |
Pectoral | Attributes |
Spines | |
Soft-rays 21 - 23 | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays 6 - 6 |