Main Ref. | Iwatsuki, Y., S. Kimura and T. Yoshino, 2001 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | fusiform / normal |
Cross section | compressed |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | terminal |
Diagnosis |
Scales between 5th dorsal fin spine base and lateral line, 4-4.5. Upper jaw extending almost to the level of anterior margin of dermal eye opening. Second dorsal fin spine longest, 19-26% of SL (mean 23%). Caudal fin dusky (rarely with dark distal margin); lower edge of lower caudal fin hyaline. Dusky stripes absent or very indistinct along scale rows above lateral line (sometimes 4-9 slightly oblique dusky bands in specimens less than about 10 cm SL); 4-9 slightly oblique dusky bands or columns of ovoid dark spots (rarely brownish) immediately below lateral line, but more obvious in preserved or stressed live specimens (Ref. 41108). Adult body plain silver; may have faint dusky bars especially juveniles. Body elongate, depth max 2.8-3.3 in SL. Preopercle lower flange scaleless. Caudal fin forked deeply and with long lobes; pectoral fins do not reach beyond level of anus. (Ref. 90102) |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 43 - 46 |
Pored lateral line scales | 45 - 49 |
Scales in lateral series | |
Scale rows above lateral line | 5.5 - 6.5 |
Scale rows below lateral line | 9.5 - 12.5 |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 7 - 7 |
on upper limb | 5 - 5 |
total | 12 - 12 |
Vertebrae | |
preanal | |
total |
Attributes | |
Fins number | 1notched No |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 9 - 9 |
Soft-rays total | 10 - 10 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 3 - 3 |
Soft-rays total | 7 - 7 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 17 - 18 | |
Pelvics | Attributes more or less normal |
Position thoracic before origin of D1 | |
Spines 1 | |
Soft-rays 5 - 5 |