| Ref. principal | Casciotta, J., A. Almirón, L. Piálek and O. Říčan, 2012 |
| Aparência refere-se a | |
| Bones in OsteoBase |
| órgãos especializados | |
| aparência diferente | |
| cores diferentes | |
| Notas | Males differ from females in the nearly straight or slightly convex distal border of the anal fin (vs. concave in females), first branched pelvic-fin produced in a short filament , hooks on anal and pelvic-fin rays (Ref. 91033). |
| Características determinantes | |
| Forma lateral do corpo | short and / or deep |
| Secção transversal | |
| Perfil dorsal da cabeça | |
| Tipo de olhos | |
| Tipo de boca/focinho | |
| Posição da boca | |
| Type of scales | cycloid scales |
| Diagnose |
Distinguished by the following combination of characters: anal fin with 22-24 (mode=24) branched rays; body depth at dorsal-fin origin 34.5-40.8 % SL (mean=37.9 % SL); nearly straight distal border of anal fin in matures males; and lateral line interrupted or with alternated series of perforated and non perforated scales. Other characters useful to diagnose this species include the following: 7-14 sheath scales on anal-fin base; anal-fin base length 2.9-3.4 in SL; interorbital width 2.7-2.9 in HL; 34-38 scales on longitudinal series; horizontal eye diameter 35.9-42.1% SL; snout length 24.0-27.3 % HL; upper jaw length 42.0-46.9% HL; maxillary teeth 3-6; pelvic-fin length 14.5-18.1% SL; snout to pelvic-fin origin 44.4-50.6% SL; snout to anal-fin origin 59.4-65.3% SL; snout to pelvic-fin origin 44.4-50.6% SL (Ref. 91033). Description: Anal-fin rays iv-v,22-24; lateral line never complete, with anterior series of 8 to 12 pored scales (mode=11), followed by a median non-perforated scales series, and a posterior perforated series of 1 to 3 scales; Tttal number of scales in longitudinal series 34-38 (mode=36) (Ref. 91033). |
| Facilidade de identificação |
| Linhas laterais | interrompido: No |
| Escamas na linha lateral | |
| Escamas da linha lateral com poros | |
| Escamas em séries laterais | 34 - 38 |
| Fileiras de escamas acima da linha lateral | 5 - 6 |
| 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 | 37 - 37 |
| Atributos | no striking attributes |
| Número de barbatanas | |
| No. de pínulas | Dorsal |
| Ventral | |
| Total de espinhos | |
| Total de raios moles | |
| Barbatana adiposa | present |
| Atributos | forked |
| Número de barbatanas | |
| Total de espinhos | |
| Total de raios moles |
| Peitoral | Atributos more or less normal |
| espinhos | |
| Raios moles 11 - 13 | |
| Pélvica | Atributos more or less normal |
| posição abdominal before origin of D1 | |
| espinhos | |
| Raios moles 7 - 7 |