The Commission has conserved the usage of the specific names Crotalinus catenatus Rafinesque, 1818 (currently Sistrurus catenatus) and Crotalus tergeminus Say in James, 1822 (currently Sistrurus tergeminus or Sistrurus catenatus tergeminus) for two species of pygmy rattlesnake, by designation of neotypes.
Crotalinus catenatus Rafinesque, 1818 (currently Sistrurus catenatus) and Crotalus tergeminus Say in James, 1822 (currently Sistrurus tergeminus; Reptilia, Serpentes): usage conserved by designation of neotypes for both species," The Bulletin of Zoological Nomenclature 70(4), 282-283, (1 December 2013). https://doi.org/10.21805/bzn.v70i4.a13