Vásquez-Cruz, Víctor, Arleth Reynoso-Martínez, Alfonso Kelly-Hernández, Eduardo M. Pérez-Gámez, and Luis Canseco-Márquez. “A Dicephalic Western Dusky Rattlesnake, Crotalus Triseriatus (Squamata: Viperidae)”. Reptiles & Amphibians 27, no. 3 (November 29, 2020): 532–533. Accessed May 6, 2024. https://journals.ku.edu/reptilesandamphibians/article/view/14913.