Main Ref. | Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990 |
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 | circular |
Dorsal head profile | clearly convex |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | sub-terminal/inferior |
Type of scales | ctenoid scales |
Diagnosis |
This species is distinguished by the following characters: snout long. Slender, and sharply pointed, its length 43-48% HL, 0.5-0.7 into orbit diameter; normally no scales on ventral aspects of head except along anterolateral margin of snout; naked areas dorsally behind anterolateral margins of snout confined to narrow strips; anterolateral edges of snout not supported by bone (median and lateral processes of nasal bone not united); ventral light organ very small, short, situated just before anus; scales large, fairly deciduous, spinules short, imbricate, aligned in 8 to 10, slightly divergent rows; overall color is gray-brown, with a bluish band around trunk; the underside of the head dusky to densely punctuated; the orbit rim black; the fins blackish to dusky (Ref. 1371, 36027). |
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 | 5 - 7 |
on upper limb | 1 - 2 |
total | 6 - 9 |
Vertebrae | |
preanal | |
total |
Attributes | extending over most of the back length |
Fins number | 2 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 2 - 2 |
Soft-rays total | |
Adipose fin | absent |
Attributes |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 17 - 21 | |
Pelvics | Attributes more or less normal |
Position thoracic before origin of D1 | |
Spines | |
Soft-rays |