Ref. principal | Hoese, D.F. and A.L. Stewart, 2012 |
Aparência se refere a | |
Bones in OsteoBase |
órgãos especializados | |
Aparência diferente | |
Cores diferentes | |
Notas | Considerable sexual dimorphism shown with males average a larger size than for females (mean = 19.3 mm SL for males and 15.9 mm SL for females, with 80% of the females between 14 and 17 mm SL versus 60% of males between 18 and 21 mm SL); males are less numerous, with females being 1.5 more abundant than males (Taru & Sunobe, 2000 noted an average F:M ratio of 1.4 for the related species, Eviota abax); males typically have first two dorsal spines filamentous vs. females usually with only the anterior spine slightly prolonged; males are generally more heavily pigmented (colour and filamentous spine differences may relate primarily to the larger size of males (Ref. 93112). |
Características determinantes | |
Forma lateral do corpo | elongated |
Seção transversal | oval |
Perfil dorsal da cabeça | |
Tipo de olhos | |
Tipo de boca/focinho | |
Posição da boca | |
Type of scales | |
Diagnose |
This species is distinguished from its congeners by the following set of characters: D usually VI + I,10; A usually I,8; most pectoral-fin rays branched; cephalic sensory-pore system pattern 1 (terminal lateral canal pore present); males with first dorsal spine filamentous, base of pectoral fin with 2 spots (darker than body color or much lighter than body color), lower spot usually smaller than upper and sometimes obscure; 4 segmented pelvic-fin rays plus a rudimentary fifth ray present, pelvic rays partly separated, connected about one-third to one half between segmented rays 2-4 and almost completely connected to tip between spine and first ray; rudimentary fifth pelvic ray bound in membrane to fourth ray; subcutaneous bars on lower trunk behind anus usually lacking in preserved adults; nasal tubes short, tips of tubes with thin black ring, dorsal, anal and caudal fins usually grey to black; dorsal fin with some light spots; vertebrae usually 26 (Ref. 93112). Dorsal to anal fin-ray formula 10/8 (Ref. 116739). |
Facilidade de Identificação |
Linhas laterais | Interrompido(a): 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 | |
Aberturas branquiais (tubarões/raias apenas) | |
Rastros branquiais | |
no membro inferior | |
no membro superior | |
total | |
Vértebras | |
Pré-anal | 10 - 10 |
total | 26 - 26 |
Atributos | |
Número de nadadeiras | 2 |
Nro. de pínulas | Dorsal |
Ventral | |
Total de espinhos | 7 - 7 |
Total de raios | 9 - 10 |
Nadadeira adiposa |
Atributos |
Número de nadadeiras | 1 |
Total de espinhos | 1 - 1 |
Total de raios | 8 - 9 |
Peitoral | Atributos |
espinhos | |
raios 16 - 18 | |
Pélvicas | Atributos |
Posição | |
espinhos 1 | |
raios 4 - 4 |