Main Ref. | Nakamura, I. and N.V. Parin, 1993 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | striking shape of body |
Body shape lateral | elongated |
Cross section | compressed |
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 |
Type of scales | scales embedded or partly/completely absent |
Diagnosis |
Body extremely elongate, compressed and tapering to a point. Anal fin reduced to a long spine and 74 - 84 smaller spinules; pelvic and caudal fins absent. Lateral line running nearer the ventral contour than the dorsal contour of the body. Body color steely blue with metallic reflections in fresh specimens, becoming silvery gray after death. |
Ease of Identification |
Lateral Lines | 1 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 | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | extending over most of the back length |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 3 - 3 |
Soft-rays total | 121 - 131 |
Adipose fin | absent |
Attributes | other (see diagnosis) |
Fins number | |
Spines total | 2 - 2 |
Soft-rays total | 74 - 84 |
Pectoral | Attributes more or less normal |
Spines 1 | |
Soft-rays 10 - 11 | |
Pelvics | Attributes other (see diagnosis) |
Position | |
Spines | |
Soft-rays |