Oligoryzomys microtis

• Main Authors: Velazco, Paúl M., Patterson, Bruce D.
• Format: Text
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Rodentia; Cricetidae; Oligoryzomys; Oligoryzomys microtis; Diamante; Lunde; Mayo River; Lynx; Mite
• Online Access: https://dx.doi.org/10.5281/zenodo.5479242; https://zenodo.org/record/5479242

Oligoryzomys microtis (Allen, 1916) VOUCHER MATERIAL: El Diamante : 3 adult females (MUSM 39283, 39284; FMNH 203506); Tingana : 1 adult male (FMNH 203676); Waqanki : 1 adult female (MUSM 39282); see table 24 for measurements. IDENTIFICATION: We consulted descriptions and measurements of Oligoryzomys microtis provided by Olds and Anderson (1987; as Oryzomys microtis ), Anderson (1997), Patton et al. (2000), Voss et al. (2001), Hice and Velazco (2012), Weksler and Bonvicino (2015b), and Pardiñas (2017b). No subspecies are currently recognized in O. microtis (Weksler and Bonvicino, 2015b; Pardiñas, 2017b). Oligoryzomys microtis is characterized by the following characteristics: dorsal fur dull yellowish brown, finely lined with blacktipped hairs; ventral fur white; upper surfaces of feet thinly covered with light buffy brown hairs; ears small, brownish, and nearly naked; eight mammae; stapedial foramen with large opening, indicating carotid circulation pattern 2 (Weksler and Bonvicino, 2015b; Pardiñas, 2017b). Our specimens conform to previous descriptions of the species, and measurements fall within the range of size variation previously documented. REMARKS: The specimen collected at the Tingana location was caught at the edge of a renacal (flooded forest of Coussapoa trinervia ). All the other specimens were caught in cultivated areas. Lareschi and Velazco (2013) reported the mite Laelaps paulistanensis from our specimens. : Published as part of Velazco, Paúl M. & Patterson, Bruce D., 2019, Small Mammals Of The Mayo River Basin In Northern Peru, With The Description Of A New Species Of Sturnira (Chiroptera: Phyllostomidae), pp. 1-69 in Bulletin of the American Museum of Natural History 2019 (429) on page 51 : {"references": ["Olds, N., and S. Anderson. 1987. Notes on Bolivian mammals. 2. Taxonomy and distribution of rice rats of the subgenus Oligoryzomys. Fieldiana Zoology, New Series 39: 261 - 281.", "Anderson, S. 1997. Mammals of Bolivia: taxonomy and distribution. Bulletin of the American Museum of Natural History 231: 1 - 652.", "Patton, J. L., M. N. F. da Silva, and J. R. Malcolm. 2000. Mammals of the Rio Jurua and the evolutionary and ecological diversification of Amazonia. Bulletin of the American Museum of Natural History 244: 1 - 306.", "Voss, R. S., D. P. Lunde, and N. B. Simmons. 2001. The mammals of Paracou, French Guiana: a neotropical lowland rainforest fauna Part 2. Nonvolant species. Bulletin of the American Museum of Natural History 263: 1 - 236.", "Hice, C. L., and P. M. Velazco. 2012. The non-volant mammals of the Reserva Nacional Allpahuayo-Mishana, Loreto, Peru. Special Publications, Texas Tech University Museum 60: 1 - 135.", "Weksler, M., and C. R. Bonvicino. 2015 b. Genus Oligoryzomys Bangs, 1900. In J. L. Patton, U. F. J. Pardinas, and G. D'Elia (editors), Mammals of South America, vol. 2: Rodents: 417 - 437. Chicago: University of Chicago Press.", "Pardinas, U. F. J. 2017 b. Small-eared pygmy rice rat Oligoryzomys microtis. In D. E. Wilson, T. E. Lacher, Jr., and R. A. Mittermeier (editors), Handbook of the mammals of the world: 433. Barcelona: Lynx Edicions.", "Lareschi, M., and P. M. Velazco. 2013. Laelapinae mites (Acari, Parasitiformes, Laelapidae) parasitic of sigmodontinae rodents from northern Peru, with the description of a new species from Akodon aerosus (Rodentia, Cricetidae, Sigmodontinae). Journal of Parasitology 99: 189 - 193."]}