The Megalancistrus genera
are closely related to Pseudacanthicus and
have, in both sexes, their bodies covered in spiny
odontodes but Megalancistrus has more soft
rays in the dorsal ( between 10 and 12). Sexual
Differences: Males have a broader head, longer
pectoral fins, slender body and the odontodes are
longer, especially around the gill cover area.
Aquarium Care: Will need a very large aquarium
as they are a territorial species and will also need
hiding places such as driftwood and large caves. Diet:
Omnivore, frozen foods such as brine shrimp, mosquito
larvae, shrimps, mussels and fish flesh and also good
quality dried foods. They will also eat green foods
in the aquarium.
Paraná and Uruguay River basins. Type
locality: Parana fluss bei La Paz in Entre-Rios,
Ferraris, C.J. Jr.,
2007. Checklist of catfishes, recent and fossil (Osteichthyes:
Siluriformes), and catalogue of siluriform primary
types. Zootaxa 1418:1-628. Seidel,
I. 2008. Back to Nature guide to L-catfishes, Ettlingen,
Germany 208 p.