Main Ref. | Bekker, V.E. and V.G. Prut'ko, 1984 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
Inner row teeth of lower jaw considerably enlarged and equidistant from one another; dorsal-nasal gland about equal in size to the trunk photophore, not immersed in tissue underlay, aligned sideways and fully disconnected from ventral-nasal gland; suborbital and anterorbital glands and hook-shaped teeth in posterior part of upper jaw missing (Ref. 43965). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 34 - 36 |
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 | |
Vertebrae | |
preanal | |
total | 35 - 35 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 15 - 15 |
Adipose fin | present |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 14 - 15 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 11 - 12 | |
Pelvics | Attributes more or less normal |
Position thoracic beneath origin of D1 | |
Spines 0 | |
Soft-rays 8 - 8 |