Referencia principal | Angulo, A., J. Marlene and M. Gracian-Negrete, 2013 |
El aspecto se refiere a | |
Bones in OsteoBase |
órganos especializados | |
diverso aspecto | |
diversos colores | |
Observaciones |
Características llamativas | |
Forma lateral del cuerpo | fusiform / normal |
Sección transversal | |
Perfil dorsal de la cabeza | |
Tipo de ojos | |
Tipo de boca/hocico | |
Posición de la boca | terminal |
Type of scales | cycloid scales |
Diagnosis |
This is distinguished from all congeners in Central America by having 49 to 54 scales in the lateral line (vs. 43 to 48 in Brycon argenteus, 55 to 61 in B. guatemalensis, and more than 64 in B. behreae, B. chagrensis and B. striatulus) and anal fin notably longer than head, with 33 to 37 total rays (vs. an anal fin about equal to length of head, with 24 to 28 total rays in B. argenteus , B. obscurus, and B. petrosus, the last two species with 48 to 55 and 53 to 58 scales in the lateral line, respectively). This species can be further diagnosed from B. guatemalensis by the following combination of characters: 5 or 6 rows of scales between lateral line and pectoral fin base (vs. 7 or 8); 9 to 11 (generally 10) rows of scales between lateral line and dorsal fin base (vs. 10 to 12, generally 11); 5 to 7 (generally 6) rows of scales between lateral line and anal fin base (vs. 7 to 9, generally 8); and a elongated and shallow caudal peduncle, whose length is 1.78 to 2.35 times its depth (vs. a short and deep caudal peduncle, whose length is 1.25 to 1.61 times its depth) (Ref. 95069). |
Facilidad de identificación |
Líneas laterales | interrumpido: No |
Escalas en la línea lateral | 49 - 54 |
Escalas de la línea lateral con poros | |
Escalas en las series laterales | |
Filas de escalas sobre la línea lateral | 9 - 11 |
Filas de escalas debajo de la línea lateral | 5 - 7 |
Escalas alrededor del peduncule caudal | 13 - 17 |
Barbillas | |
Hendiduras branquiales (solamente tiburones/rayas) | |
Branquispinas | |
en el miembro inferior | 13 - 15 |
en el miembro superior | 13 - 15 |
total | 26 - 30 |
Vértebra | |
preanal | |
total | 45 - 45 |
Cualidades | no striking attributes |
Número de las aletas | 1 |
número de pínnulas | Dorsal |
Ventral | |
total de espinas | |
Total de rayos suaves | 11 - 11 |
Aleta adiposa | present |
Cualidades | forked |
Número de las aletas | |
total de espinas | |
Total de rayos suaves | 33 - 37 |
Pectoral | Cualidades more or less normal |
espinas | |
Rayos-suaves 12 - 14 | |
Pélvicas | Cualidades more or less normal |
posición abdominal before origin of D1 | |
espinas | |
Rayos-suaves 7 - 9 |