Olallamys edax (Thomas, 1916)

Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Echimyidae, Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona: Lynx Edicions, pp. 552-604 : 588

publication ID

https://doi.org/ 10.5281/zenodo.6623649

DOI

https://doi.org/10.5281/zenodo.6624372

persistent identifier

https://treatment.plazi.org/id/03C5A071-FFC9-FFFD-FFD8-5D615D1EFA7E

treatment provided by

Carolina

scientific name

Olallamys edax
status

 

70. View Plate 35: Echimyidae

Greedy Olalla Rat

Olallamys edax View in CoL

French: Rat-épineux de Mérida / German: GroRe Olalla-Ratte / Spanish: Rata olalla glotona

Other common names: Venezuelan Soft-furred Spiny-rat

Taxonomy. Thrinacodus edax Thomas, 1916 ,

“Sierra de Mérida. Alt. 2800 m,” Mérida, Venezuela.

This species is monotypic.

Distribution. NW Venezuela, known only from the C Cordillera de Mérida area. View Figure

Descriptive notes. Head-body 225 mm, tail 345 mm. No specific data are available for body weight. The Greedy Olalla Rat has soft fur without spines or bristles. It is larger than the White-tailed Olalla Rat ( O. albicauda ), but like its congener, dorsal pelt is shaded reddish to brownish, belly is yellowish and contrasts only slightly with dorsum, and tail is ¢.153% of headbody length. Tail is sparsely furred and completely white along its ventral side, reddish brown basally and white distally, and partially white on its distal one-half. Measurements of craniodental variables are generally larger compared with the White-tailed Olalla Rat.

Habitat. Limited to bamboo stands in midto high-elevation montane forests in the Cordillera de Mérida in north-western Venezuela at elevations of ¢.2800 m.

Food and Feeding. There is no specific information available for this species, but the Greedy Olalla Rat is probably folivorous, feeding primarily on bamboo.

Breeding. There is no information available for this species.

Activity patterns. There is no specific information available for this species, but the Greedy Olalla Rat is probably nocturnal.

Movements, Home range and Social organization. There is no specific information available for this species, but Greedy Olalla Rats have been recorded producing whistle-like vocalizations at night.

Status and Conservation. Classified as Data Deficient on The IUCN Red List. Additional ecological studies of the Greedy Olalla Rat—a rare mountain endemic—are needed.

Bibliography. Allen (1914a), Eisenberg (1989), Emmons (1990, 1997a, 2005), Patton et al. (2015), Thomas (1916b), Woods (1993), Woods & Kilpatrick (2005).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

SubOrder

Hystricomorpha

InfraOrder

Hystricognathi

Family

Echimyidae

Genus

Olallamys

Loc

Olallamys edax

Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier 2016
2016
Loc

Thrinacodus edax

Thomas 1916
1916
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