Subspecies and Distribution. G.a.attwateriMerriam,1895—GulfcoastofSETexas(betweentheBrazosandNuecesrivers),USA. G. a. ammophilus Davis, 1940 — between Colorado and Guadalupe rivers in SE Texas, USA. in Geomyidae

Subspecies and Distribution. G.a.attwateriMerriam,1895—GulfcoastofSETexas(betweentheBrazosandNuecesrivers),USA. G. a. ammophilus Davis, 1940 — between Colorado and Guadalupe rivers in SE Texas, USA.Published as part of Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Geomyidae, pp. 234-269 in Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona :Lynx Edicions on page 243, DOI: 10.5281/zenodo.660380