Roy W. McDiarmid. U.S. Geological Survey, Biological Resources Division, Patuxent Wildlife Research Center
Banks, R. C., R. W. McDiarmid, and A. L. Gardner 1987-01-01. Resource Publication, no. 166. United States Department of the Interior Fish and Wildlife Service. Washington, D.C., USA. 79. . .
Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes 2004-12-31. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, draft (2004). . . . . As-yet (2004) unpublished manuscript from 1998.