month of May 2013 takes us back to the South American
family of the Doradidae and a quite pretty and sought
after species; the "Dusky Doradid", Anadoras
There are at this
precise moment only 4 species in the Anadoras
genera, namely our factsheet of the month A. grypus
(Cope, 1872) from the Upper Amazon River basin in
Peru, A. insculptus (Miranda Ribeiro, 1912)
from Brazil and Argentina, A. regani (Steindachner,
1908) from the Amazon and Oyapock River basins and
A. weddellii (Castelnau, 1855) from the Upper
Mamoré, Paraguay and Pilcomayo River basins.
Apart from A. weddellii and A. grypus
the other two are uncommon in the hobby and are very
and A. wendellii are similar but the later
has plates formed in the caudal peduncle which A.
grypus:- close-up of Humeral Process.
grypus:- close-up of caudal.
The maps show
the area where A. grypus is from, in small
streams tributary to the Ambyiacu, as well as the
river itself, which empties into the Amazon near Pebas,
in Eastern Ecuador, some distance east of the Napo
is similar to Amblydoras
this species has a serrated dorsal fin ray against
A. grypus which is smooth. There is also
a difference in the colour patterns and the shape
of the head fontanels. The bony plates are also smaller
than on Amblydoras.
Upper Amazon River basin, Peru. Type locality:
small streams tributary to the Ambyiacu, as well as
the river itself, which empties into the Amazon near
Pebas, in Eastern Ecuador, some distance east of the
26 or 27 lateral scutes which
are small. Has a modified caudal fulcra covering most
of the peduncle above and below. Short adipose fin.
The fontanel is D shaped.
Body light brown which is
covered with large irregular shaped dark brown blotches.
The head is mainly dark brown. Front half of the
dorsal fin is covered with dark brown pigment, the
remainder of the fin is clear with a few dark spots.
Pectoral, ventral and anal fins with dark pigment
in the centre and lighter at the edges. The adipose
fin has a dark bar at the rear. Caudal fin has a
broad dark horizontal bar in the centre of each
lobe, the remainder of the fin is clear.
Care & Compatibility
In the aquarium you should
provide hiding places as with most Dorads they like
to hide out during the day and establish their own
space. Provide some plants with overhead planting
an advantage as they do prefer dimmer lighting in
the tank. Generally peaceful with other placid species.
As this species can grow moderately large you would
need to house with same size species such as Cichlids
and larger Characins as they could pick off smaller
fish at night as this is, as most Dorads are, reclusive
during daylight hours.
As yet unknown.
Not yet described.
Tablet foods, frozen and live
worms. Will also eat snails in the aquarium.
primary rayed fin(s) on top of the body.
Anal fin: The
fin forward from the anal cavity. Caudal fin: The primary rayed fin(s)
on top of the body. Pectoral fin: The paired fins just
behind the head. Fulcra: Bony plates. Fontanel: The space(s) between the
bones on top of the skull covered by skin.