Réf. Princ. | Collette, B.B., 2001 |
Ressemble à | |
Bones in OsteoBase | Skull, Spine |
Organes spécialisés | |
Apparence différente | |
Couleurs différentes | |
Remarques |
Éléments remarquables | striking fins |
Profil du corps | fusiform / normal |
Section transverse | oval |
Profil dorsal de la tête | more or less straight |
Type d'yeux | more or less normal |
Type de bouche/museau | more or less normal |
Position de la bouche | terminal |
Type of scales | |
Diagnose |
This large species is distinguished by the following characters: elongate, fusiform body, slightly compressed laterally; total gill rakers on first gill arch 26-34; dorsal fins 2 and separated only by a narrow interspace, the second followed by 8-10 finlets; anal fin followed by 7 to 10 finlets; large specimens may have very long second dorsal and anal fins, becoming well over 20% of fork length; pectoral fins moderately long, usually reaching beyond second dorsal-fin origin but not beyond end of its base, usually 22-31% of FL; 2 flaps (interpelvic process) between pelvic fins; body with very small scales; corselet of larger scales developed but not very distinct; caudal peduncle very slender, bearing on each side a strong lateral keel between 2 smaller keels; no striations on ventral surface of liver; swimbladder present. Colour of back metallic dark blue changing through yellow to silver on belly; belly frequently crossed by about 20 broken, nearly vertical lines; dorsal and anal fins, and dorsal and anal finlets bright yellow, the finlets with a narrow black border (Ref. 9684). |
Facilité d'identification |
Lignes latérales | 1 Interrompu(e)(s): No |
Écailles sur la ligne latérale | |
Écailles perforées de la ligne latérale | |
Écailles en série latérale | |
Rangées d'écailles au-dessus de la ligne latérale | |
Rangées d'écailles au-dessus de la ligne latérale | |
Écailles autour du pédoncule caudal | |
Barbillons | 0 |
Fentes branchiales (requins et raies uniquement) | |
Branchiospines | |
sur le membre inférieur | |
sur le membre supérieur | |
Total | 26 - 34 |
Vertèbres | |
préanal(e) | |
Total | 39 |
Attributs | other |
Nombre de nageoires | 2 |
Nombre de pinnules | Dorsal 8 - 10 |
Ventral 7 - 10 | |
Total d'épines | 11 - 14 |
Total de rayons mous | 12 - 16 |
Nageoire adipeuse | absent |
Attributs | forked; more or less normal |
Nombre de nageoires | 1 |
Total d'épines | 0 - 0 |
Total de rayons mous | 11 - 16 |
Pectorale(s) | Attributs rays very elongated |
Épines 0 | |
Rayons mous 30 - 36 | |
Pelvienne(s) | Attributs more or less normal |
position thoracic before origin of D1 | |
Épines | |
Rayons mous |