Morphology Summary - Johnius pacificus

Atributos do sexo

Características determinantes
Forma lateral do corpo (shape guide)	fusiform / normal
Secção transversal
Perfil dorsal da cabeça
Tipo de olhos
Tipo de boca/focinho
Posição da boca
Tipo de balança
Diagnose	Eye small, 11 to 16 % of head length; snout bluntly rounded; no barbel on chin; teeth differentiated into large and small in both jaws; gill rakers slender, about half the length of gill filaments at angle of arch, 10 to 13 on lower limb. Second anal spine long, stiff, 45 to 54 % of head length. Scales on head and throat cycloid (smooth). Swim bladder hammer-shaped, with about 12 pairs of arborescent appendages along its sides, the first entering head and sending a palmate branch to the front of the pectoral arch. Sagitta (large earstone) with a tadpole-shaped impression, the head of which has its long axis lying obliquely to that of sagitta and the tail expanded and deepened as a hallow cone connected with the head by a narrow groove.
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
Fissuras branquiais (tubarões/raias apenas)
Raios branquiais
no membro inferior	10 - 13
no membro superior
total
Vértebras
Pré-anal
total

Atributos