Main Ref. | Iwamoto, T. and A. Williams, 1999 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | |
Different colors | |
Remarks |
Striking features | long whip-like tail |
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 | other (see diagnosis) |
Position of mouth | sub-terminal/inferior |
Diagnosis |
pelvic fin rays 11-12; height first dorsal less than head length; underside of head including lower jaw naked, without prominent sensory pores; scales covered with tiny spinules in parallel to slightly convergent rows; 10-11 scale rows below origin of second dorsal fin, about 50 lateral line scales from anterior origin over distance equal to predorsal length; dark color of trunk confined to abdomen, not extending onto dorsum; first dorsal fin pale with blackish tip; anterior dermal window of light organ small, situated between pelvic fin bases; tip of tail distinctly pale over posterior 1/4-1/5th of fin, from about 90th anal ray. Snout protruding, angular. |
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 | 1 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | |
Fins number | 2 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 2 - 2 |
Soft-rays total | |
Adipose fin | absent |
Attributes | pointed; confluent |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 20 - 23 | |
Pelvics | Attributes more or less normal |
Position thoracic before origin of D1 | |
Spines 0 | |
Soft-rays 11 - 12 |