Subspecies and Distribution. R. g. gracilis J. A. Allen & F. M. Chapman, 1897 — Yucatan Peninsula (SE Mexico, Belize, and N Guatemala). R.g.anthony:Goodwin,1932—CGuatemala,SWHonduras,andmostofElSalvador. R.g.harrisiGoodwin,1945—fromextremeSHondurasStoNWCostaRica. R.g.insularisJ.K.Jones,1964—knownonlyfromIsladelCarmen,CampecheState,SEMexico. R. g. pacificus Goodwin, 1932 — Pacific coastal area of SE Mexico (Chiapas State), S Guatemala, and SW El Salvador. in Cricetidae

Subspecies and Distribution. R. g. gracilis J. A. Allen & F. M. Chapman, 1897 — Yucatan Peninsula (SE Mexico, Belize, and N Guatemala). R.g.anthony:Goodwin,1932—CGuatemala,SWHonduras,andmostofElSalvador. R.g.harrisiGoodwin,1945—fromextremeSHondurasStoNWCostaRica. R.g.insularisJ.K.Jones,1964—knownonlyfromIsladelCarmen,CampecheState,SEMexico. R. g. pacificus Goodwin, 1932 — Pacific coastal area of SE Mexico (Chiapas State), S Guatemala, and SW El Salvador.