Zygodontomys brevicauda (J. A. Allen and Chapman, 1893) . Bull. Am. Mus. Nat. Hist., 5:215.

TYPE LOCALITY: Trinidad and Tobago, Trinidad, Princestown .

DISTRIBUTION: S.E. Costa Rica to Ecuador, Colombia, Venezuela, Guianas, and adjacent Brazil; Trinidad and Tobago.

COMMENT: Includes cherriei, microtinus, seorsus, and punctulatus; see Hershkovitz, 1962, Fieldiana Zool., 49:203-204, Hall, 1981:733, and Husson, 1978:415-419. Handley, 1966, in Wenzel and Tipton, eds., Ectoparasites of Panama, Field Mus. Nat. Hist., p. 783, listed microtinus and seorsus as distinct species, without comment. Kiblisky et al., 1970, Acta Cient. Venez., 21(1): 35, Gardner and Patton, 1976, Occas. Pap. Mus. Zool. La. St. Univ., 49:28, and Pearson and Patton, 1976, J. Mammal., 57:349, listed microtinus as a distinct species. Z. brevicauda is probably a composite according to OAR who retains cherriei and tobagi in brevicauda and considers brunneus (including sanctaemartae), microtinus (including thomasi and stellae), and punctulatus (including griseus and fraterculus) distinct species based on comparisons of most holotypes and distributions; all of the forms considered above by OAR were included in brevicauda by Hershkovitz, 1962, Fieldiana Zool., 46:196-205.

ISIS NUMBER: 5301410008059001001 as Z. brevicauda .

5301410008059002001 as Z. cherriei.

5301410008059004001 as Z. microtinus.

5301410008059005001 as Z. punctulatus.