Thomomys (Megascapheus) umbrinus subsp. umbrinus (Richardson 1829)

Thomomys (Megascapheus) umbrinus subsp. umbrinus (Richardson 1829), Quadrupeds, in: Fauna Boreali-Americana, Vol. 1: 202.

Type Locality: Originally given as Cadadaguios, SW Louisiana, but restricted to Mexico, Veracruz (probably Puebla), vicinity of Boca del Monte, by Bailey (1906).

Synonyms: Thomomys (Megascapheus) umbrinus subsp. albigularis Nelson and Goldman 1934; Thomomys (Megascapheus) umbrinus subsp. martinensis Nelson and Goldman 1934; Thomomys (Megascapheus) umbrinus subsp. orizabae Merriam 1893; Thomomys (Megascapheus) umbrinus subsp. peregrinus Merriam 1893; Thomomys (Megascapheus) umbrinus subsp. tolucae Nelson and Goldman 1934; Thomomys (Megascapheus) umbrinus subsp. vulcanius Nelson and Goldman 1934 .