Ref. principal | Scott, W.B. and E.J. Crossman, 1973 |
Aparência refere-se a | |
Bones in OsteoBase |
órgãos especializados | |
aparência diferente | |
cores diferentes | |
Notas |
Características determinantes | none |
Forma lateral do corpo | fusiform / normal |
Secção transversal | compressed |
Perfil dorsal da cabeça | more or less straight |
Tipo de olhos | more or less normal |
Tipo de boca/focinho | more or less normal |
Posição da boca | terminal |
Type of scales | |
Diagnose |
Distinguished by the presence of large black spots on the back and on both lobes of the caudal fin; the young have no parr marks (Ref. 27547). Body fusiform, streamlined, somewhat laterally compressed; moderately, deeper in breeding males (Ref. 1998). Mouth terminal, normally very little oblique but greatly deformed in breeding males, with lower jaw enlarged, turned up at tip, mouth unable to close (Ref. 1998). Adipose fin large; pelvic fins with axillary process (Ref. 27547). Fish in the sea are steel blue to blue-green on the back, silver on the sides and white on the belly; large oval spots present on the back, adipose fin and both lobes of the caudal fin (Ref. 27547). Breeding males become dark on the back, red with brownish green blotches on the sides; breeding females are similar but less distinctly colored (Ref. 27547). Differs from Oncorhynchus mykiss by having the following unique characters: anal fin with 11-15½ (usually 13½ ) branched rays; 177-240 scales in midlateral row; 26-33 gill rakers; large mature males with enormous hump; juveniles lacking parr marks; and lacking pink to red stripe on flank (Ref. 59043). |
Facilidade de identificação |
Linhas laterais | interrompido: No |
Escamas na linha lateral | |
Escamas da linha lateral com poros | 147 - 205 |
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 | 16 - 21 |
no membro superior | 8 - 14 |
total | 24 - 35 |
Vértebras | |
Pré-anal | |
total | 63 - 72 |
Atributos | no striking attributes |
Número de barbatanas | 1 |
No. de pínulas | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Total de espinhos | 0 - 0 |
Total de raios moles | 10 - 15 |
Barbatana adiposa | present |
Atributos | forked; more or less normal |
Número de barbatanas | 1 |
Total de espinhos | 0 - 0 |
Total de raios moles | 11 - 19 |
Peitoral | Atributos more or less normal |
espinhos 0 | |
Raios moles 14 - 17 | |
Pélvica | Atributos more or less normal |
posição abdominal behind origin of D1 | |
espinhos 0 | |
Raios moles 9 - 11 |