Ucayali Water Rat

Ucayali Water Rat

Taxobox
name = Ucayali Water Rat
regnum = Animalia
phylum = Chordata
classis = Mammalia
ordo = Rodentia
familia = Cricetidae
subfamilia = Sigmodontinae
tribus = Oryzomyini
genus = "Amphinectomys"
genus_authority = Malygin, 1994
species = "Amphinectomys savamis"
binomial = "Amphinectomys savamis"
binomial_authority = Malygin, 1994

The Ucayali Water Rat ("Amphinectomys savamis") is a rodent from Peruvian Amazonia. It is placed as the only member of genus "Amphinectomys" in tribe Oryzomyini of family Cricetidae. It is similar to "Nectomys", but its discoverers considered it to be different enough (with more expansive interdigital webbing and a significantly broader interorbital region) to require its own genus. When it was described as a new genus in 1994, knowledge of the variation within "Nectomys" was much more limited than it is now, and it has been suggested that the Ucayali Water Rat's status be re-examined considering this new information. The species's karyotype, 2n = 52, falls within the known range of "Nectomys" (2n = 38 - 59).

References

*Malygin, V.M., V.M. Aniskin, S.I. Isaev and A.N. Milishnikov: Amphinectomys savamis, Malygin gen. et sp. n., a new species and a new genus of water rat (Cricetidae, Rodentia) from Peruvian Amazonia
*


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