Hylaeamys acritus (Emmons & Patton, 2005)

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 204-535 : 431

publication ID

https://doi.org/ 10.5281/zenodo.6707142

DOI

https://doi.org/10.5281/zenodo.6727797

persistent identifier

https://treatment.plazi.org/id/03F06D13-FF36-20FF-0D85-18DC00B9FA33

treatment provided by

Carolina

scientific name

Hylaeamys acritus
status

 

425. View Plate 22: Cricetidae

Bolivian Rice Rat

Hylaeamys acritus View in CoL

French: Oryzomys de Bolivie / German: Bolivien-Reisratte / Spanish: Rata arrocera de Bolivia

Other common names: Bolivian Hylaeamys

Taxonomy. Oryzomys acritus Emmons & Patton, 2005 View in CoL , El Refugio Huanchaca, Noel Kempff Mercado National Park, Santa Cruz, Bolivia.

This species is monotypic.

Distribution. Restricted to E bank tributaries of Rio Iténez in Beni and Santa Cruz departments, NE Bolivia. View Figure

Descriptive notes. Head-body 131-152 mm, tail 110-130 mm, ear 20-23 mm, hindfoot 27-31 mm; weight 57 g (holotype). The Bolivian Rice Rat is mediumsized, characterized externally by tail shorter than head-body length (average 81%), long dorsal (9-10 mm) and ventral hairs (3—4 mm), whitish venter, and large and fleshy hypothenar pad. Dorsum is brown to yellow-brown, with gray-based hair. Sides are paler than dorsum, yellowish to distinctly orange, brightest on cheeks and below ear. Rostrum is dusky above to behind eyes, with dusky-tipped cream or whitish hair. Anteroventral bases of ears have inconspicuous preauricular tuft of entirely whitish or pale gray hair, sometimes tipped with pale rufous. Pinnae are brown, thinly covered on interior surfaces with whitish or rarely brown hairs. Skin surrounding eyes is blackish. Ventral hairs are quite long, pale gray at bases with long white tips, and white of inner legs extends to join pure white of forefeet and hindfeet. Tail is dusky, paler below at base, but not prominently bicolored, and covered with inconspicuous short, fine, dusky hairs. Hindfeet are long and narrow.

Habitat. Evergreen riverine or gallery forest to deciduous and semideciduous terra firma and seasonally flooded forest bordering seasonally flooded pampa, including those of the top of the Huanchaca tableland, at elevations of ¢.700 m.

Food and Feeding. No information.

Breeding. The holotype of Bolivian Rice Rat was a subadult male with scrotal testes captured in November.

Activity patterns. The Bolivian Rice Rat is terrestrial and captured on the ground.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Data Deficient on The IUCN Red List.

Bibliography. Emmons & Patton (2005, 2008), Percequillo (2015e).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

SubOrder

Myomorpha

SuperFamily

Muroidea

Family

Cricetidae

Genus

Hylaeamys

Loc

Hylaeamys acritus

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr 2017
2017
Loc

Oryzomys acritus

Emmons & Patton 2005
2005
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