Rhipidomys mastacalis (Lund, 1840) . Kongl. Dansk. Vid. Selsk. Naturv. Math. Afhandl., p. 24.

TYPE LOCALITY: Brazil, S. W. Minas Gerais, Rio das Velhas, Lagoa Santa .

DISTRIBUTION: N.E. and E.C. Brazil; Guianas; Venezuela; Margarita and Tobago Isis.

COMMENT: Includes emiliae and venezuelae; see Cabrera, 1961:423, and Pine, 1973, Acta Amazonica, 3(2):64. Carvalho and Toccheton, 1969, Rev. Biol. Trop. San Jose, 15(2):215-226, listed emiliae as a distinct species without comment; Handley, 1976, Brigham Young Univ. Sci. Bull. Biol. Ser., 20(5):50, listed venezuelae as a distinct species, without comment. Reviewed by Mares et al., 1981, Ann. Carnegie Mus., 50(4): 117, and Hooper and Musser, 1964, Misc. Publ. Mus. Zool. Univ. Mich., 123:20.

ISIS NUMBER: 5301410008050004001.