RÖMER, HAHN, & CONRAD 2006:
A new species of the genus Apistogramma (Perciformes: Cichlidae)
from the Roraima state, Brazil
ographs and illustrations by the author
The genus Apistogramma REGAN 1913 assembles a diversified series of dwarf
cichlids from neotropical South America. This genus currently includes 67 species
present in all major river basins such as Rios Paraguay, Amazonas, Ucayali, Negro,
Orinoco, etc. Apistogramma wapisana has been known since 1984 as Apistogramma
spec. “Balzfleck,” but its native range has only been known since 1993. It is an
odd species that originates from the upper Rio Branco, a tributary of the Rio
Negro, in the left bank of the Rio Amazonas basin.
Apistogramma wapisana can be distinguished by a unique characteristic among the genus: it is the sole described species of this genus in which males are smaller than females (around 4 cm for females and 3. 5
cm for males). It can also be distinguished by other characteristics:
sexual dimorphism is almost non-existent and reversed; size is
small, always below 4 cm; males and females show a bright lateral
blotch; and the lateral band is interrupted in places.
Coloration of Males
The background color is beige gray. The contrasting pattern
is composed of black-gray markings: a preorbital stripe, an
interrupted lateral band, a round caudal blotch, and a lateral blotch
included in the lateral band, which can be brightly iridescent,
depending on the view angle. The background color of territorial
males is beige to yellowish. The pattern is composed only of a
black suborbital band; any other markings disappear. The pattern
of aggressive territorial males is composed of black markings: a
suborbital band, a lateral blotch, and eventually a lateral band and
a round caudal blotch. When fish are afraid, they show a brownish
coloration and two abdominal stripes parallel to the lateral band.
The fins are colorless and translucent.
Coloration of Females
The background color is beige gray. The contrasting pattern is
composed of black-gray markings: a preorbital stripe, a suborbital
band, an interrupted lateral band, a round caudal blotch, and a
lateral blotch included in the lateral band, which can be brightly
iridescent. The background color of territorial females is yellowish.
The pattern is composed of a black-gray preorbital stripe, a black
suborbital band, a black-gray lateral band, a black lateral blotch,
Fig. 1a: Apistogramma wapisana, male, SMF29056.
Fig. 1b: Apistogramma wapisana, female, SMF29055.