Main Ref. | Sazonov, Y.I., 1994 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | clearly convex |
Type of eyes | |
Type of mouth/snout | more or less normal |
Position of mouth | terminal |
Type of scales | |
Diagnosis |
Head relatively short, <39.5-0.025% SL. Snout short (22-28%HL); broadly triangular anteriorly when viewed from above. Orbit diameter about 1/5 to 1/4 HL, along the whole upper edge and on the separate elongate-shaped part of the lower-posterior part of the orbit are accumulation s of whitish connective tissue. Interorbital space very wide, ca. 17-30% HL, flat, narrows very slightly at the middle of the orbit. Upper jaw extends to below the center of the orbit. Branchiostegal rays 8-9. Transverse rows of scales above lateral line 60-65, 30-35 predorsal. Gill rakers' length less than gill lamellae length, and completely free at the base. Opercle has a projection at the lower anterior corner; subopercle has a wide posterior edge usually with no separate processes. Anus not shifted forward from the origin of the anal fin. Pyloric caeca 12-18 (Ref. 41471). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 54 - 60 |
Pored lateral line scales | 54 - 60 |
Scales in lateral series | |
Scale rows above lateral line | 8 - 11 |
Scale rows below lateral line | 9 - 11 |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 24 - 27 |
Vertebrae | |
preanal | |
total | 52 - 54 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 17 - 20 |
Adipose fin |
Attributes | forked; more or less normal |
Fins number | |
Spines total | |
Soft-rays total | 18 - 21 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 9 - 10 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays 6 - 8 |