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The Quintessential NaturalistHonoring the Life and Legacy of Oliver P. Pearson$
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The Quintessential Naturalist: Honoring the Life and Legacy of Oliver P. Pearson

Douglas Kelt and Deborah Kaspin

Print publication date: 2007

Print ISBN-13: 9780520098596

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520098596.001.0001

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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 30 July 2021

A New Species of Phyllotis (Rodentia, Cricetidae, Sigmondontinae) from the Upper Montane Forest of the Yungas of Northwestern Argentina

A New Species of Phyllotis (Rodentia, Cricetidae, Sigmondontinae) from the Upper Montane Forest of the Yungas of Northwestern Argentina

Una Nueva Especie De Phyllotis (Rodentia, Cricetidae, Sigmodontinae) Del Bosque Montano Superior De Las Yungas Del Noroeste Argentino

Chapter:
(p.775) A New Species of Phyllotis (Rodentia, Cricetidae, Sigmondontinae) from the Upper Montane Forest of the Yungas of Northwestern Argentina
Source:
The Quintessential Naturalist
Author(s):

J. Pablo Jayat

Guillermo D’Elía

Ulyses F. J. Pardiñas

Juan G. Namen

Publisher:
University of California Press
DOI:10.1525/california/9780520098596.003.0022

This chapter describes a new sigmodontine species of the genus Phyllotis and was collected near Hualinchay, Tucumán, Argentina. It observes that the new species, which is a sister taxon to P. osilae, can be distinguished from other members of the genus by the following combination of traits: large size (slightly smaller that P. osilae and P. xanthopygus); dorsal color dark gray; light ochraceous belly; ears covered internally and externally by obscure brown hairs; manus with digits and distal dorsum covered with white hair, proximal dorsum of the manus and pes darker; tail slightly bicolored and slightly haired; not penicillate; incisors with white to yellowish-white enamel; noticeably hypsodont molars; and several molecular synapomorphies. The chapter notes that the new species is an endemic from the older forests of the upper Yungas. It observes that the low number of specimens captured, despite intensive trapping efforts, suggests that it is rare and restricted to this type of forest.

Keywords:   sigmodontine species, Phyllotis, Hualinchay, Tucumán, Argentina, taxon, P. osilae, P. xanthopygus, upper Yungas

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