Main Ref. | Iwamoto, T. and M.E. Anderson, 1999 |
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 | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | |
Position of mouth | sub-terminal/inferior |
Type of scales | ctenoid scales |
Diagnosis |
Second dorsal fin high. Snout slender, terminal scute elongated and sharp (when complete). Underside of head naked. Nasal fossa naked dorsal to suborbital ridge. Horizontal diameter of orbit one-quarter or less of head length, about 1.6-2.2 into snout length. Anterolateral snout margin incompletely supported by bone. Body scales large, with 5-7 parallel to slightly divergent spinule rows. Light organ long, extending from just behind isthmus to before anus. Anus immediately anterior to anal fin. Body with prominent dark bands; first dorsal fin black tipped (Ref. 33374). |
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 | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 7 - 8 |
Vertebrae | |
preanal | |
total |
Attributes | |
Fins number | 2 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 2 - 2 |
Soft-rays total | 8 - 9 |
Adipose fin | absent |
Attributes | pointed; confluent |
Fins number | 1 |
Spines total | |
Soft-rays total |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 16 - 18 | |
Pelvics | Attributes more or less normal |
Position thoracic behind origin of D1 | |
Spines | |
Soft-rays 7 - 7 |