we have not covered before in this factsheet series
is the Pimelodellafrom the South American Heptapteridae family
and probably because there is not a lot known about
them, identification wise anyway, and although some
make it into the hobby they are not that well represented
in your local fish stores.
Pimelodella is the largest genus in the family,
however, it is very much in need of taxonomic revision.
This genus is found on both
sides of the Andes and there are approximately 78
species ranging from Panama to Paraguay and southern
Brazil with one species also occurring in Central
chagresi). This genus
also includes two species of troglobitic catfishes,
P. kronei and P. spelaea.
This genus has been in confusion
for a good number of years now especially with another
close member of the Pimelodidae family, Pimelodus.
These notes are the following distinguishing characteristics
from the two genus. Pimelodella:
Adipose fin long, low with a curved margin. The
humeral process is long and spiky. Body usually
plain with a dark lateral stripe; rather depressed
body. Pimelodus: Adipose
fin short, high, with a straight or sloping margin.
Humeral process broad, triangular. Body variously
patterned, usually quite deep.
- head view
The genus Pimelodella
used to be a sub-family member of the Pimelodidae
before being given full
Amazon and La Plata basins, Argentina, Brazil and
Dorsal spines (total): 1; Dorsal
soft rays (total): 6; Anal spines: 0; Anal soft rays:
14 - 15. Adipose fin long, low with a curved
margin. The humeral process is long and spiky, rather
depressed body. Three
pairs of barbels. Caudal
fin deeply forked.
Body usually plain with a dark
lateral stripe running
through the body from the snout to the caudal peduncle.
Care & Compatibility
Provide hiding places such
as pots and rockwork and if desired, floating plant
cover. Fish companions should be as large as not to
be seen as potential victims in their night time forays
around the tank. Treat
as you would do with any member of the Pimelodus
in that they will be predatory on small fishes in
the aquarium and it is also better to keep them in
small groups rather than singularly, as this will
dilute the aggression.
Will eat any aquarium prepared
foods such as tablets, pellets, frozen and live foods.
Not fussy eaters.
fin: Fleshy finlike projection without rays,
behind the rayed dorsal fin.
Anal: The median, unpaired, ventrally located
fin that lies behind the anus, usually on the posterior
half of the fish.
Dorsal: The primary rayed fin(s) on top of
Humeral process:Bony extension
of the pectoral girdle.
Pimel = fat; odella = a little tooth,
(a little Pimelodus). gracilis: Graceful; slender.
H.A. and R. Riehl, 1985. Aquarien atlas.
Band 2. Mergus, Verlag für Natur-und Heimtierkunde
GmbH, Melle, Germany. 1216 p. Bockmann, F.A. and G.M.
Guazzelli, 2003. Heptapteridae (Heptapterids).
p. 406-431. In R.E. Reis, S.O. Kullander and C.J.
Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes
of South and Central America. Porto Alegre: EDIPUCRS,
Froese, R. and D. Pauly.
Editors. 2016. FishBase. World Wide Web electronic
publication. www.fishbase.org, ( 06/2016 ).