Friday, February 2, 2018

[Mammalogy • 2018] Cryptotis evaristoi • A New Species of Small-eared Shrew of the Genus Cryptotis (Eulipotyphla, Soricidae) from the northernmost Peruvian Andes

Cryptotis evaristoi 
Zeballos, Pino, Medina, Pari, Chávez, Tinoco & Ceballos, 2018


The northernmost Peruvian Andes, a unique biogeographic region characterized by the confluence of multiple distinct ecosystems (i.e. Amazon basin, Pacific rainforest, the Sechura Desert, the northern and central Andes), is the southernmost geographic range limit of the South American shrews representing the genus Cryptotis. In the northernmost Peruvian Andes, two poorly known species have traditionally been reported (C. peruviensis and C. equatoris). Our study, based on molecular and morphologic traits, confirms the presence of C. peruviensis but also the occurrence of C. montivaga, based on specimens erroneously assigned to C. equatoris. Moreover, a new species of Cryptotis from the páramo and montane forests of the Tabaconas Namballe National Sanctuary near the Ecuadorian border is also described. It is a member of the thomasi group and is distinguished from other South American shrews by a unique set of morphological characters, including large body size, comparatively short tail, simple ectoloph of M3, and large PM4 post protocrista.

Keywords: Mammalia, Soricomorpha, new species, Andean páramo, Neotropical shrews, Peruvian mammals

Horacio Zeballos, Kateryn Pino, César E. Medina, Alexander Pari, Daniel Chávez, Nicolás Tinoco and Gerardo Ceballos. 2018. A New Species of Small-eared Shrew of the Genus Cryptotis (Mammalia, Eulipotyphla, Soricidae) from the northernmost Peruvian Andes. Zootaxa. 4377(1); 51–73.  DOI: 10.11646/zootaxa.4377.1.4

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