Ref. principal | Randall, J.E., 2001 |
Aparência refere-se a | |
Bones in OsteoBase |
órgãos especializados | no special organs |
aparência diferente | |
cores diferentes | |
Notas |
Características determinantes | none |
Forma lateral do corpo | fusiform / normal |
Secção transversal | compressed |
Perfil dorsal da cabeça | clearly convex |
Tipo de olhos | more or less normal |
Tipo de boca/focinho | more or less normal |
Posição da boca | terminal |
Type of scales | ctenoid scales |
Diagnose |
This species is distinguished by the following characters: body moderately deep and compressed, its depth 2.6 to 3.2 times in standard length (SL); dorsal profile of body uniformly convex, without any bony horn-like projection or protuberance anteriorly on head; mouth small; incisiform teeth very small, somewhat pointed, finely serrate on edges, as many as 80 in upper jaw and 100 in lower jaw of large adults; continuous unnotched D VI (rarely V or VII),26-29; A II,27-30; pectoral-fin rays 17-18 (usually 17); pelvic fins I,3; caudal fin slightly emarginate in young, becoming truncate in adults; caudal peduncle slender, subcylindrical, with a pair of bony plates on each side that develop large sharp antrorse keels with age; body colour dark brownish grey, shading ventrally to yellowish (life colour may vary from dark brown to light blue-grey); edge of operculum and preopercle usually dark brown; dorsal and anal fins yellowish with faint diagonal brown bands and a blue margin; tongue black at lengths of 25 cm or more (Ref. 9808). |
Facilidade de identificação |
Linhas laterais | interrompido: No |
Escamas na linha lateral | |
Escamas da linha lateral com poros | |
Escamas em séries laterais | |
Fileiras de escamas acima da linha lateral | |
Fileiras de escamas abaixo da linha lateral | |
Escamas em torno do pedúnculo caudal | |
Barbilhões | 0 |
Fissuras branquiais (tubarões/raias apenas) | |
Raios branquiais | |
no membro inferior | 9 - 10 |
no membro superior | 4 - 4 |
total | 13 - 14 |
Vértebras | |
Pré-anal | |
total |
Atributos | extending over most of the back length |
Número de barbatanas | 1 |
No. de pínulas | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Total de espinhos | 6 - 6 |
Total de raios moles | 26 - 29 |
Barbatana adiposa | absent |
Atributos | more or less truncate; more or less normal |
Número de barbatanas | 1 |
Total de espinhos | 2 - 2 |
Total de raios moles | 27 - 30 |
Peitoral | Atributos more or less normal |
espinhos 0 | |
Raios moles 17 - 18 | |
Pélvica | Atributos more or less normal |
posição thoracic before origin of D1 | |
espinhos 1 | |
Raios moles 3 - 3 |