Main Ref. | Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | light organs |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | clearly convex |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | superior |
Type of scales | |
Diagnosis |
Teeth on maxilla 10 to 13. POSTORB double. AC slightly arched. Barbel long, about 1.5 to 2.0 times as head length; stem sparsely pigmented, ending in a black swollen part with a prominent photophore on each side followed by a large ovate white bulb with a long filament arising at their junction. |
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 | 1 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 12 - 14 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 17 - 19 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 6 - 8 | |
Pelvics | Attributes more or less normal |
Position abdominal beneath origin of D1 | |
Spines 0 | |
Soft-rays 7 - 7 |