Ref. principal | Calegari, B.B. and R.E. Reis, 2010 |
Aparência refere-se a | |
Bones in OsteoBase |
órgãos especializados | |
aparência diferente | |
cores diferentes | |
Notas | Secondary sexual dimorphism is most obvious in the conical urogenital papilla, which is positioned just behind the anal opening in males (vs. absent in females). Adult males also have a fleshy flap along the dorsal margin of first thickened pelvic-fin ray (vs. absent in females). Males have a longer pelvic fin extending to the anal-fin origin (vs. pelvic fin never reaches that point in females). The first thickened pelvic-fin ray is strongly arched in female (vs. straight in males) (Ref. 85171). |
Características determinantes | |
Forma lateral do corpo | elongated |
Secção transversal | |
Perfil dorsal da cabeça | |
Tipo de olhos | |
Tipo de boca/focinho | |
Posição da boca | |
Type of scales | |
Diagnose |
Distinguished from Microlepidogaster perforatus, the only other species in this genus, by the possession of a continuous lateral line, median lateral plate series reaching, rather than falling short of, the end of the caudal peduncle, a shorter pectoral-fin spine (13.4-16.2 vs. 18.2-21.0% standard length), a smaller interorbital distance (38.9-43.1 vs. 47.7-53.3% head length), more numerous dentary teeth (16-29 vs. 12-15), the anterior margin of the snout naked (vs. the snout completely covered by plates), the preopercle not contacting the fourth postrostral plate (vs. the preopercle contacting and extending to midlength of that plate), the absence of the anterior processes of the supraneural (vs. supraneural bearing a bilateral pair of processes along its anterior margin), and the dorsal fin located more posteriorly relative to the parietosupraoccipital, where the neural spine of the tenth or eleventh vertebral centrum supports the compound supraneural plus first pterygiophore of the dorsal fin (vs. compound supraneural plus first pterygiophore supported by the neural spine of the eighth or ninth vertebra. Exhibits a remarkable suite of secondary sexually dimorphic characters, involving the presence of a conical urogenital papilla in males, the presence of a fleshy flap along the dorsal margin of first thickened pelvic-fin ray of males, longer pelvic fin in males, and a more strongly arched first pelvic-fin ray in females (Ref. 85171). |
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 | |
no membro superior | |
total | |
Vértebras | |
Pré-anal | |
total | 31 - 33 |
Atributos | |
Número de barbatanas | 1 |
No. de pínulas | Dorsal |
Ventral | |
Total de espinhos | 2 - 2 |
Total de raios moles | 7 - 7 |
Barbatana adiposa | absent |
Atributos | forked |
Número de barbatanas | |
Total de espinhos | |
Total de raios moles | 6 - 6 |
Peitoral | Atributos more or less normal |
espinhos 1 | |
Raios moles 6 - 6 | |
Pélvica | Atributos |
posição | |
espinhos | |
Raios moles 6 - 6 |