Sorex altoensis (Carraway, 2007)

Russell A. Mittermeier & Don E. Wilson, 2018, Soricidae, Handbook of the Mammals of the World – Volume 8 Insectivores, Sloths and Colugos, Barcelona: Lynx Edicions, pp. 332-551 : 406-407

publication ID

https://doi.org/ 10.5281/zenodo.6870843

DOI

https://doi.org/10.5281/zenodo.6869654

persistent identifier

https://treatment.plazi.org/id/3D474A54-A025-874A-FA14-ACFB11A7FDF7

treatment provided by

Felipe

scientific name

Sorex altoensis
status

 

36. View Plate 15: Soricidae

Alto Shrew

Sorex altoensis

French: Musaraigne de Carraway / German: Alto-Spitzmaus / Spanish: Musarana de altitud

Taxonomy. Sorex veraecrucis altoensis Carraway, 2007 ,

“ Volcan de Fuego, 9800 ft. [= 2987 my], Jalisco , latitude 19-55°N, longitude 103-63°W.”

Sorex altoensis was originally described as a subspecies of S. veraecrucis and was later included in S. salvini . Exact placement of S. altoensis is currently unresolved because it is morphologically most similar to S. saussurei , which it was included in before it was described in 2007. Sorex altoensis is recognized as a distinct species in the saussurei group because some populations attributed to it (under the name S. veraecrucis by M. Esteva and colleagues in 2010) clustered genetically closest to S. saussurei . Sorex altoensis is also morphologically distinguishable from S. veraecrucis , S. salvini , and S. saussurei . Monotypic.

Distribution. Sierra Madre Occidental and Sierra Madre Oriental, connecting S of the mountains, including Durango, Jalisco, Colima, Guanajuato, Michoacan, Coahuila, Nuevo Leon, Tamaulipas, Querétaro, Hidalgo, México, Puebla, Distrito Federal, Morelos, Guerrero, and Oaxaca (Mexico). View Figure

Descriptive notes. Head-body 60-76 mm, tail 38-54 mm, ear 9-5 mm, hindfoot 12— 14 mm; weight 6 g. The Alto Shrew is medium-sized. Dorsum is medium brown, and venteris grayish blond/white. Tail is 60-70% of head-body length, shorter than that of the Veracruz Shrew ( S. veraecrucis ) and is uniformly medium brown. Lowerfirst incisors have shallow interdenticular spaces and are pigmented in one section. There are five unicuspids, first and second being large, third being barely smaller than fourth, and fifth being minute. Teeth are pigmented dark red.

Habitat. High-elevation pine-oak-juniper woodlands, yellow pine and alder woodlands, or moist montane canyons with pine and oak or Douglas fir ( Pseudotsuga menziesii, Pinaceae ) and juniper woodlands with shrubby understories of Baccharis and Senecio (Asteraceae) at elevations of 2100-3650 m. Alto Shrews have also been recorded in high-elevation corn and oat fields.

Food and Feeding. No information.

Breeding. A female Alto Shrew with two embryos was collected in August.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Not assessed on The [UCN Red List. The Alto Shrew has a wide distribution and seems to adapt well to agriculture, although localized deforestation might be a threat. The Veracruz Shrew, in which it was previously included, waslisted as Least Concern, which might apply to the Alto Shrew because its distribution makes up most of the distribution previously allocated to the Veracruz Shrew.

Bibliography. Carraway (2007, 2014k), Esteva et al. (2010), Woodman et al. (2012).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Soricomorpha

Family

Soricidae

Genus

Sorex

Loc

Sorex altoensis

Russell A. Mittermeier & Don E. Wilson 2018
2018
Loc

Sorex veraecrucis altoensis

Carraway 2007
2007
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