Oxyropsis

Oxyropsis is a genus of fish in the family Loricariidae native to South America.[1] These species are distinguished by the presence of a single row of enlarged odontodes along the trunk midline lying adjacent and immediately dorsal to, the lateral line canal.[2] Species of this genus have a depressed head and have relatively large eyes placed ventrolaterally. This genus is most similar to Hypoptopoma in external appearance, which shares the head shape and eye placement. Oxyropsis are elongate and have a narrow caudal peduncle, which distinguishes it from all other Hypoptopomatinae genera except Niobichthys and Acestridium.[2]

Oxyropsis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Tribe: Hypoptopomatini
Genus: Oxyropsis
C. H. Eigenmann & R. S. Eigenmann, 1889
Type species
Oxyropsis wrightiana
Eigenmann & Eigenmann 1889

The species of Oxyropsis are distinguished based on their armor plate formation, numbers of plates and teeth, relative depth of the caudal peduncle, development of serrae on the pectoral fin spine.[2] Males have a genital papilla.

Species

There are currently 4 recognized species in this genus:

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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2016). Species of Oxyropsis in FishBase. June 2016 version.
  2. Aquino, A.E. & Schaefer, S.A. (2002): Revision of Oxyropsis Eigenmann and Eigenmann, 1889 (Siluriformes, Loricariidae). Copeia, 2002 (2): 374–390.
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