| Ref. principal | Teugels, G.G., 1986 |
| Aparência refere-se a | |
| Bones in OsteoBase |
| órgãos especializados | no special organs |
| aparência diferente | males alike females |
| cores diferentes | males alike females |
| Notas |
| Características determinantes | none |
| Forma lateral do corpo (shape guide) | elongated |
| Secção transversal | oval |
| 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 | sub-terminal/inferior |
| Type of scales | scales embedded or partly/completely absent |
| Diagnose |
Diagnosis: long and narrow, "knife-shaped" frontal fontanel (Ref. 248, 81644), 2.5-3.0 times as long as wide (Ref. 81644). Tooth plates remarkably broad; median vomerine tooth plate length strikingly shorter than premaxillary length (Ref. 248). Vomerine tooth band very short, length 2.0-5.0% HL (mean 3.3), clearly shorter than premaxillary tooth band (Ref. 81644). Head rectangular in dorsal outline (Ref. 248), relatively large (HL 25.3-27.6% SL, mean 26.4) and wide (width 18.6-20.9% SL, mean 19.8)(Ref. 81644). Supraorbital and "dermosphenotic" never sutured; reduced suprabranchial organ (Ref. 248). Pectoral spine serrate only along anterior margin; flank neuromasts arranged in a regular pattern; postorbital bones not in contact; eyes laterally positioned, interorbital width 44.5-49.0% HL, mean 47.3; 14-16 rakers on 1st gill arch (Ref. 81644). Coloration: preserved specimens dark reddish brown on back and flanks; ventrum and lower parts of paired fins pale (Ref. 81644). |
| Facilidade de identificação |
| Linhas laterais | 1 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 | 0 |
| Fissuras branquiais (tubarões/raias apenas) | absent |
| Raios branquiais | |
| no membro inferior | |
| no membro superior | |
| total | 14 - 16 |
| Vértebras | |
| Pré-anal | |
| total |
| Atributos | extending over most of the back length |
| Número de barbatanas | 1 |
| No. de pínulas | Dorsal 0 |
| Ventral 0 | |
| Total de espinhos | 0 - 0 |
| Total de raios moles | 62 - 77 |
| Barbatana adiposa | absent |
| Atributos | more or less truncate; more or less normal |
| Número de barbatanas | 1 |
| Total de espinhos | |
| Total de raios moles | 52 - 57 |
| Peitoral | Atributos more or less normal |
| espinhos 1 | |
| Raios moles 9 | |
| Pélvica | Atributos more or less normal |
| posição abdominal behind origin of D1 | |
| espinhos | |
| Raios moles 6 |