Serrasalmidae
Ossubtus xinquense
Jégu, 1992
|
Paratype, INPA 3979, 55 mm LS. Photo courtesy of Dr. Michel Jégu |
Locality type: Brésil: Pará, Altamira, River Xingu. XI/1990. Coll. Mr. Izaltino.
Ossubtus xinguense, a new genus and species from the Rio Xingu, Amazonia, Brazil (Teleostei: Serrasalmidae). Ossubtus xinguense, a new genus and species, differs from the other species of the Serrasalmidae in the strictly ventral position of the mouth and in having only four teeth on the dentary. Ossubtus xinguense is also characterised by the lack of prepelvic serrae, the contact of the two series of premaxillary teeth, the possession of delicate incisiform teeth on the jaws, and a triangular black humeral blotch in juveniles. The form of the two posterior outer premaxillary teeth, either incisiform, tricuspidate and flat, and the large olfactory fossa are synapomorphies shared by Mylesinus and Ossubtus.
REFERENCES
JÉGU, M., 1992.- Ossubtus xinguense un nouveau genre et une nouvelle espèce du rio Xingu, Brésil (Teleostei; Serrasalmidae). Ichthyological Exploration of Freshwaters, 3 (3): 235-252.
USE YOUR BACKSPACE TO RETURN OR CLICK HERE TO RETURN VALID SPECIES PHYTOPHAGOUS PAGE
USE THIS LINK TO RETURN TO RESEARCH PAGE
TO RETURN HOME CLICK HERE.
The OPEFE web site and its contents; is disclaimed for purposes of Zoological Nomenclature in accordance with the International Code of Zoological Nomenclature, Fourth Edition, Article 8.3 and 8.4. No new names or nomenclature changes are available from statements at this web site.
Copyright© 1994-2012 Oregon Piranha Exotic Fish Exhibit (The OPEFE fish exhibit is permanently CLOSED as of 2000) Sutherlin, Oregon. Information posted on this web site is archival data on fish scientific classifications and other information. DISCLAIMER: The copyrighted material may not be used for any purpose other than private study, scholarship or research. Cited information requires credit and this link www.opefe.com. All rights reserved. All images shown (unless otherwise noted) is property of OPEFE.
UPDATED: 12/28/2011
