Eastern Patagonian Laucha – Eligmodontia typus

Eligmodontia typusF. Cuvier, 1837

Accepted name, Mammal Species of the World 2005

Hershkovitz (1962:185) discussed the uncertainty of the type locality (also see Ortells et al., 1989:138), which should be formally restricted in order to settle the morphological identification of E. typus and promote a critical definition of the species within the genus. See account of E. morgani for references on the morphometric, karyotypic, and molecular differentiation of the two species where their ranges approach one another or overlap. Cabrera (1961) referred Graomys hypogaeus Cabrera (1934) as a full synonym of Phyllotis griseoflavus medius, Massoia (1976) placed it in synonymy under E. typus sensu lato, and Williams and Mares (1978) questioned whether the type is a composite specimen; critical restudy of the holotype and new field collections are required to finally ascertain its status.

• Wilson, D and Reeder, D. (eds.) 2005. Mammal Species of the World. A Taxonomic and Geographic Reference. 3rd ed. -- 2142 pp. Johns Hopkins University Press.