Main Ref. | Prokofiev, A.M., 2010 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Males with small agglomerations of a small number of rounded tubercles separated from each other located under the anterior-ventral margin of the orbit. All rays of the pectoral fin are of the same width and not thickened. No sexual dimorphism based on morphometric characters. |
Striking features | |
Body shape lateral | elongated |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | scales embedded or partly/completely absent |
Diagnosis |
Can be diagnosed by the following characters: trunk teretial; head conical, without developed rostrum; pelvic fins located anteriorly from the vertical through the origin of the dorsal fin; approximately ten gill rakers on the first branchial arch; lateral line incomplete; black longitudinal band along the middle part of the body; small lobes of the bony capsule of the swim bladder, the lobes connected by the moderately developing manubrium; and lacking epural (Ref. 85843). |
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 | 6 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 10 |
Vertebrae | |
preanal | |
total | 39 - 39 |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 9 - 10 |
Adipose fin | absent |
Attributes | more or less truncate |
Fins number | |
Spines total | |
Soft-rays total | 7 - 7 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 9 - 11 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays 6 - 7 |