Notiosorex evolis
Creators: name: Mittermeier, Russell A.
name: Wilson, Don E.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Soricidae
Notiosorex
Notiosorex evolis

description: 150. Large-eared Gray Shrew <i>Notiosorex evolis</i> <b>French:</b> Musaraigne a oreilles longues / <b>German:</b> GroRohrWiistenspitzmaus / <b>Spanish:</b> Musarana gris de orejas largas <b>Taxonomy.</b> Sorex (Notiosorex) evotis Coues, 1877, “ Mazatlan [Sinaloa], Mexico.” Restricted by L. N. Carraway in 2007 to “lati- tude 23-21°N, longitude 106-42°W.” Notiosorex evotis was previously included in N. crawford: but was recognized as a distinct species based primarily on morphometrics. Distributional limits of all species of Notiosorex are still somewhat unknown; additional sampling is needed. Monotypic. <b>Distribution.</b> Sinaloa, Nayarit, Jalisco, and Michoacan (W Mexico). <b>Descriptive notes.</b> Head-body 54-73 mm, tail 23-32 mm, ear 7-9 mm, hindfoot 11-13 mm; weight 5-6-3 g. The Large-eared Gray Shrew is the largest of the four species of Notiosorex. Dorsum is light grayish brown, and venter is white or pale gray. Feet are broad, with relatively short claws. Tail is ¢.33% of head-body length, unicolored pale gray, and covered with very short hairs. Ears are long and conspicuous, being the same color as dorsal pelage externally and pinkish internally; eyes are small but large compared with other shrews; and snout is pink with dark line on ridge extending to tip of rostrum. Females have three inguinal mammae. Paroccipitals are low set and extend at an oblique angle from cranium; coronoid processes are broad relative to their height; prominent lateral ridge on cranium is formed by extension of roof of glenoid fossa; and zygomatic plate is wider and relatively longer than in other species of Notiosorex. There are three unicuspids, and teeth are entirely white with no pigmentation, as in all species of Notiosorex. <b>Habitat.</b> Wide variety of dry arid habitats, including fallow fields bordered by scattered cacti, thornbush, and mesquite, and shrublands from sea level to elevations of ¢.550 m. Large-eared Gray Shrews can be found in damp microhabitats within dry ecosystems, such as under rocky ledges, rocks, and logs. <b>Food and Feeding.</b> No information. <b>Breeding.</b> A pregnant Large-eared Gray Shrew with five embryos was captured in July 1962. <b>Activity patterns.</b> No information. <b>Movements, Home range and Social organization.</b> No information. <b>Status and Conservation.</b> Classified as Least Concern on The IUCN Red List. The Largeeared Gray Shrew has a relatively wide distribution encompassing multiple protected areas and seems common, although it is somewhat threatened by conversion of mesquite areas into agriculturalfields. <b>Bibliography.</b> Baker et al. (2003), Carraway (2007, 2014e), Carraway &amp; Timm (2000), Castro-Arellano et al. (2016).
description: Published as part of <i>Russell A. Mittermeier &amp; Don E. Wilson, 2018, Soricidae, pp. 332-551 in Handbook of the Mammals of the World – Volume 8 Insectivores, Sloths and Colugos, Barcelona :Lynx Edicions</i> on page 449, DOI: 10.5281/zenodo.6870843