Dracunculus species

Cleveland, Christopher A., Garrett, Kayla B., Cozad, Rebecca A., Williams, Brianna M., Murray, Maureen H. & Yabsley, Michael J., 2018, The wild world of Guinea Worms: A review of the genus Dracunculus in wildlife, International Journal for Parasitology: Parasites and Wildlife 7 (3), pp. 289-300 : 290

2. Dracunculus species of squamates

Currently there are nine formally described Dracunculus species in snakes. The highest diversity has been reported in Eurasia and Africa where D. coluberensis , D. alii , D. houdemeri , D. doi , D. dahomensis , and D. oesophageus occur. A single species, D. mulbus , has been reported from Oceania. In the Americas, two species ( D. ophidensis and D. brasiliensis ) have been described. Also, worldwide, several uncharacterized species have been reported from numerous snake species.