The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae (white-toothed shrews) and Myosoricinae (African white-toothed shrews). In addition, the family contains the extinct subfamilies Limnoecinae, Crocidosoricinae, Allosoricinae and Heterosoricinae. These species are typically found in North America, northern South America, Europe and northern Asia. The enamel of the tips of their teeth is reddish due to iron pigment. The iron deposits serve to harden the enamel and are concentrated in those parts of the teeth most subject to wear. The list of species is: Tribe Anourosoricini Genus Anourosorex (Asian mole shrews) Assam mole shrew, A. assamensis Giant mole shrew, A. schmidi Chinese mole shrew, A. squamipes Taiwanese mole shrew, A. yamashinai Tribe Blarinellini Genus Blarinella (Asiatic short-tailed shrews) Indochinese short-tailed shrew, B. griselda Asiatic short-tailed shrew, B. quadraticauda Burmese short-tailed shrew, B. wardi Tribe Blarinini Genus Blarina (American short-tailed shrews) Northern short-tailed shrew, B. brevicauda Southern short-tailed shrew, B. carolinensis Elliot's short-tailed shrew, B. hylophaga Everglades short-tailed shrew, B. peninsulae Genus Cryptotis (small-eared shrews) Cryptotis mexicana group Mexican small-eared shrew, C. mexicana Nelson's small-eared shrew, C. nelsoni Grizzled Mexican small-eared shrew, C. obscura Phillips's small-eared shrew, C. phillipsii Cryptotis goldmani set Central Mexican broad-clawed shrew, C. alticola Goldman's broad-clawed shrew, C. goldmani Goodwin's broad-clawed shrew, C. goodwini Guatemalan broad-clawed shrew, C. griseoventris C. lacertosus C. mam Oaxacan broad-clawed shrew, C. peregrina Cryptotis nigrescens group Eastern Cordillera small-footed shrew, C. brachyonyx Colombian small-eared shrew, C. colombiana Honduran small-eared shrew, C. hondurensis Yucatan small-eared shrew, C. mayensis Darién small-eared shrew, C. mera Merriam's small-eared shrew, C. merriami Blackish small-eared shrew, C. nigrescens Cryptotis thomasi group Ecuadoran small-eared shrew, C. equatoris Medellín small-eared shrew, C. medellinia Merida small-eared shrew, C. meridensis Wandering small-eared shrew, C. montivaga Peruvian small-eared shrew, C. peruviensis Scaly-footed small-eared shrew or Western Colombian small-eared shrew, C. squamipes Tamá small-eared shrew, C. tamensis Thomas's small-eared shrew, C. thomasi Cryptotis parva group Central American least shrew, C. orophila North American least shrew, C. parva Tropical small-eared shrew, C. tropicalis ungrouped/relict Enders's small-eared shrew, C. endersi Talamancan small-eared shrew, C. gracilis Big Mexican small-eared shrew, C. magna Tribe Nectogalini Genus Chimarrogale (Asiatic water shrews) Malayan water shrew, C. hantu Himalayan water shrew, C. himalayica Bornean water shrew, C. phaeura Japanese water shrew, C. platycephalus Chinese water shrew, C. styani Sumatran water shrew, C. sumatrana Genus Chodsigoa Van Sung's shrew, C. cauvansunga Chodsigoa furva