The younger name Doras
fimbriatus Kner 1855 is considered valid as a
nomen protectum according to Article 23.9 of the ICZN,
and its older synonym, D. loricatus Kner
1853 qualifies as a nomen oblitum. A fourth new species,
asterophys, is described and diagnosed
in part by a gas bladder morphology that is distinctive
among congeners. Description: Three
fimbriata and O.
asterophysa, form a monophyletic group
based on three shared characteristics: smooth elongate
fimbriae inserted in more than one row, one dorsally
and one ventrally, along anterior margin of maxillary
barbel (uniquely derived among Doradidae), elongate
fimbriae on mental barbels, and anterior nuchal plate
reduced, not sutured to epioccipital (latter two features
uniquely derived among Ossancora). Habitat:
Ossancora is typical of lowland floodplain lakes
and river channels, and its occurrence in the both
the Amazonas and Paraná-Paraguay supports a
historical link between these two basins.
Aquarium Care: Very peaceful addition to
a community aquarium. This is another doradid that
prefers safety in numbers assuming that you can purchase
them. Recommended that you keep at least 4 specimens
together. Good water quality is required.
Diet: Finely shredded shrimp and bloodworm.
Doras fimbriatus, Doras
Guaporé River basin.
Birindelli, JLO and
MH Sabaj Pérez (2011)
Ossancora, new genus of thorny catfish (Teleostei:
Siluriformes: Doradidae) with description of one new
species. Proceedings of the Academy of Natural Sciences
of Philadelphia 161, pp. 117–152. Froese, R. and D. Pauly. Editors.
2018. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 11/2018 ).