"LC" . "* Sistrurus ravus ravus" . "* Caudisona rava (–Cope, 1875)" . . "Common names: Mexican pigmy rattlesnake, Mexican pygmy rattlesnake, more.Sistrurus ravus is a venomous pitviper species, found only in Mexico. Three subspecies are currently recognized, including the nominate subspecies described here."@en . "(–Garman, 1884)" . . "(– Harris & Simmons, 1977)" . . "* Crotalophorus ravus (–Cope, 1885)" . . . "* Crotalus ravus (Cope, 1865)" . "( Harris & Simmons, 1977)" . "* Sistrurus ravus (–Boulenger, 1896)" . . "* Crotalus (Sistrurus) ravus" . . . "(–Hoge, 1966)" . "*[Crotalus miliarius]Var. ravus" . "iucn3.1" . . . "* Sistrurus ravus lutescens" . . "Sistrurus ravus"@en .