Sorex

Sorex
The genus Sorex includes many of the common shrews of Eurasia and North America, and contains at least 142 known species and subspecies. Members of this genus, known as long-tailed shrews, are the only members of the tribe Soricini of the subfamily Soricinae (red-toothed shrews). They have 32 teeth.
These animals have long, pointed snouts, small ears, which are often not visible, and scent glands located on the sides of their bodies. As their eyesight is generally poor, they rely on hearing and smell to locate their prey, mainly insects. Some species also use echolocation. Distinguishing between species without examining the dental pattern is often difficult.
In some species, a female shrew and her dependent young form "caravans", in which each shrew grasps the rear of the shrew in front, when changing location.
Species
Genus Sorex – most basal of the genera
Kashmir pygmy shrew (S. planiceps) – India and Pakistan
Tibetan shrew (S. thibetanus) – endemic to China
Subgenus Otisorex – mostly North American shrews with a few species found on the Kamchatka Peninsula and islands in the Bering Sea.
Chiapan shrew (S. chiapensis)
Cruz's long-tailed shrew (S. cruzi)
Long-tailed shrew (S. dispar)
Sorex dispar blitchi
Sorex dispar dispar
Western pygmy shrew (S. eximius)
Sorex eximius eximius
Sorex eximius montanus
Smoky shrew (S. fumeus)
Sorex fumeus fumeus
Sorex fumeus umbrosus
Eastern pygmy shrew (S. hoyi)
Sorex hoyi alnorum
Sorex hoyi hoyi
Sorex hoyi thompsoni
Sorex hoyi winnemana
Ibarra shrew (S. ibarrai)
Large-toothed shrew (S. macrodon)
Sierra shrew (S. madrensis)
McCarthy's shrew (S. mccarthyi)
Carmen Mountain shrew (S. milleri)
Mutable shrew (S. mutabilis)
Dwarf shrew (S. nanus)
Mexican long-tailed shrew (S. oreopolus)
Orizaba long-tailed shrew (S. orizabae)
Ornate shrew (S. ornatus)
Sorex ornatus juncensis
S. o. lagunae
S. o. ornatus
S. o. relictus
S. o. salarius
S. o. salicornicus
S. o. sinuosus
S. o. willetti
Inyo shrew (S. tenellus)
Verapaz shrew (S. veraepacis)
Ixtlan shrew (Sorex ixtlanensis)
S. vagrans complex
Glacier Bay water shrew (S. alaskanus)
Eastern water shrew (S. albibarbis)
S. a. gloveralleni
S. a. labradorensis
S. a. punctulatus
S. a. turneri
Baird's shrew (S. bairdi)
S. b. bairdi
S. b. permiliensis
Marsh shrew (S. bendirii)
S. b. albiventer
S. b. bendirii
S. b. palmeri
Montane shrew (S. monticola)
S. m. calvertensis
S. m. insularis
S. m. isolatus
S. m. longicaudus
S. m. malitiosus
S. m. parvidens
S. m. prevostensis
S. m. setosus
New Mexico shrew (S. neomexicanus)
Northern montane shrew (S. obscurus)
S. m. alascensis
S. m. elassodon
S. m. obscurus
S. m. shumaginensis
S. m. soperi
Pacific shrew (S. pacificus)
S. p. pacificus
S. p. cascadensis
Western water shrew (S. navigator)
S. n. brooksi
S. n. navigator
American water shrew (S. palustris)
S. p. hydrobadistes
S. p. palustris
Fog shrew (S. sonomae)
S. s. sonomae
S. s. tenelliodus
Vagrant shrew (S. vagrans)
S. v. halicoetes
S. v. paludivagus
S. v. vagrans
S. cinereus group
Kamchatka shrew (S. camtschaticus)
Cinereous shrew (S. cinereus)
S. c. acadicus
S. c. cinereus
S. c. hollisteri
S. c. lesueurii
S. c. miscix
S. c. ohioensis
S. c. streatori
Maryland shrew (S. fontinalis)
Prairie shrew (S. haydeni)
Saint Lawrence Island shrew (S. jacksoni)
Paramushir shrew (S. leucogaster)
Southeastern shrew (S. longirostris)
Mount Lyell shrew (S. lyelli)
Portenko's shrew (S. portenkoi)
Preble's shrew (S. preblei)
Pribilof Island shrew (S. pribilofensis)
Olympic shrew (S. rohweri)
Barren ground shrew (S. ugyunak)
Subgenus Sorex
Dneper common shrew (S. averini)
Lesser striped shrew (S. bedfordiae)
Greater stripe-backed shrew (S. cylindricauda)
Chinese highland shrew (S. excelsus)
Azumi shrew (S. hosonoi)
Chinese shrew (S. sinalis)
Alaska tiny shrew (S. yukonicus)
S. alpinus group
Alpine shrew (S. alpinus)
Ussuri shrew (S. mirabilis)
S. araneus group
Valais shrew (S. antinorii)
Common shrew (S. araneus)
Udine shrew (S. arunchi)
Crowned shrew (S. coronatus)
Siberian large-toothed shrew (S. daphaenodon)
S. d. daphaenodon
S. d. sanguinidens
S. d. scaloni
Iberian shrew (S. granarius)
Caucasian shrew (S. satunini)
S. arcticus group
Arctic shrew (S. arcticus)
S. a. arcticus
S. a. laricorum
Maritime shrew (S. maritimensis)
S. tundrensis
Tien Shan shrew (S. asper)
Gansu shrew (S. cansulus)
Tundra shrew (S. tundrensis)
S. minutus group
Buchara shrew (S. buchariensis)
Kozlov's shrew (S. kozlovi)
Caucasian pygmy shrew (S. volnuchini)
S. v. dahli
S. v. volnuchini
S. caecutiens group
Laxmann's shrew (S. caecutiens)
Taiga shrew (S. isodon)
Eurasian least shrew (S. minutissimus)
Eurasian pygmy shrew (S. minutus)
Flat-skulled shrew (S. roboratus)
Shinto shrew (S. shinto)
S. s. sadonis
S. s. shikokensis
S. s. shinto
Long-clawed shrew (S. unguiculatus)
S. gracillimus group
Slender shrew (S. gracillimus)
S. raddei
Radde's shrew (S. raddei)
S. samniticus
Apennine shrew (S. samniticus)
Subgenus incertae sedis
Alto shrew (S. altoensis) – Mexico
Arizona shrew (S. arizonae) – United States (Arizona, New Mexico) Mexico (Chihuahua)
Zacatecas shrew (S. emarginatus) – Mexico
Jalisco shrew (S. mediopua) – Mexico
Merriam's shrew (S. merriami) – Western United States (Washington, Oregon, California, Idaho, Nevada, Utah, Arizona, New Mexico, Wyoming, Colorado)
Saussure's shrew (S. saussurei) – Mexico and Guatemala
S. s. godmani
S. s. saussurei
Salvin's shrew (S. salvini) – Mexico and Guatemala
Sclater's shrew (S. sclateri) – Mexico
San Cristobal shrew (S. stizodon) – Mexico
Trowbridge's shrew (S. trowbridgii) – Pacific Coast United States (Washington, Oregon, California) Canada (southern British Columbia)
S. t. destructioni
S. t. humboldtensis
S. t. mariposae
S. t. montereyensis
S. t. trowbridgii
Chestnut-bellied shrew (S. ventralis) – Mexico
Veracruz shrew (S. veraecrucis) – Mexico
S. v. oaxacae
S. v. veraecrucis
References
Mammal genera
Red-toothed shrews
Animals that use echolocation
Mammals described in 1758
Taxa named by Carl Linnaeus