Main Ref. | Whitehead, P.J.P., M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.), 1986 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | different colors during breeding season only |
Remarks | Male has a reddish spawning coloration, while female is greyish (Ref. 35388). |
Striking features | none |
Body shape lateral | short and / or deep |
Cross section | angular |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | superior |
Diagnosis |
First dorsal fin present but covered by thick layer of skin forming a characteristic high crest with embedded spines. Bony tubercles present, arranged in 3 widely separated rows of large flattened tubercles on each side of body. Gill openings large, extend- extending below level of upper pectoral fin ray. Pyloric present 36-79. Ventral sucking disc formed by the modified pelvic fin (Ref. 232). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 0 - 0 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 0 - 0 |
Scale rows below lateral line | 0 - 0 |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | absent |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 28 - 29 |
Attributes | other |
Fins number | 2 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 5 - 9 |
Soft-rays total | 9 - 11 |
Adipose fin | absent |
Attributes | more or less truncate |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 9 - 10 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 20 - 21 | |
Pelvics | Attributes part of sucker-disc |
Position | |
Spines 0 | |
Soft-rays 0 - 0 |