Order Soricomorpha Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 220 311 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Sorex ventralis Merriam 1895 Sorex ventralis Merriam 1895 , N. Amer. Fauna, 10: 75 . Type Locality: "Cerro San Felipe, Oaxaca , Mexico (altitude 1000 feet [ 305 m ])." . Vernacular Names: Chestnut-bellied Shrew . Distribution: Endemic to Mexico ; in Distrito Federal , México , Oaxaca , Puebla , and Tlaxcala (Carraway, ms). Conservation: IUCN – Lower Risk (lc). Discussion: Referred to unnamed subgenus by George (1988:456) . Similar to saussurei but smaller; see Junge and Hoffmann (1981) , who allocated the species to subgenus Sorex . Hall (1981) included ventralis in oreopolus .