This dataset contains the digitized treatments in Plazi based on the original journal article Carbajal-Márquez, Rubén Alonso, Cedeño-Vázquez, José Rogelio, Martínez-Arce, Arely, Neri-Castro, Edgar, Machkour- M’Rabet, Salima C. (2020): Accessing cryptic diversity in Neotropical rattlesnakes (Serpentes: Viperidae: Crotalus) with the description of two new species. Zootaxa 4729 (4): 451-481, DOI: 10.11646/zootaxa.4729.4.1