Head flattened and wedge shaped. Profile almost straight,
sloping slightly towards snout. Dorsal 6/7 rays. Small
adipose fin and a long anal fin. The ventral fins
are placed behind the dorsal fin and has 7/8 rays.
Eyes lateral. Marbled markings to body. Two black
bands along body split by a white band. Some specimens
have a yellow tinge but may lose this in captivity.
There can be differences in seperate individuals.
Aquarium Care: If kept with other
species they would need to be the same same size or
larger species such as Loriicarids and larger Characins
such as Silver Dollars. Can be kept with equal sized
conspecifics. Sexual Differences:
In common with the rest of the Auchenipteridae family
the males possess an elongated and thickened anal
fin, a genital papilla. The male has it modified into
a copulatory organ with the first and second ray thickened
and longer, it is thought that the male uses this
to clasp the female during the spawning embrace. Sexually
active males also have an elongated and curved dorsal
spine and the maxillary barbels are also elongated.
South America:Venezuela; Orinoco basin. Type locality:
Los esteros de Camaguán, km 270, Estado Guárico;
magoi From the Portuguesa river basin, Venezuela
magoi Holotype used by Castillo & Brull G. in
1989 to describe the species. Picture taken at the Fish Collection,
holotype section of the Museum of Biology of the Central University
magoi Pair-male to front
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