Hexametra boddaertii is a parasitic roundworm belonging to the family Ascarididae. H. boddaertii was originally described from a single specimen of Mastigodryas boddaerti, a South American colubrine snake.Kreis, H. A. "Beitrage zur Kenntnis parasitischer Nematoden. XI. Neue parasitische Nematoden." Rev. Suisse Zool 51.2 (1944): 227-252. Other neotropical colubrids identified as hosts to H. boddaertii include Oxyrhopus trigeminus, Philodryas patagoniensis, Spilotes pullatus, Trimorphodon biscutatus, Philodryas baroni, and Oxyrhopus guibei.Peichoto, María E., et al. "First report of parasitism by Hexametra boddaertii (Nematoda: Ascaridae) in Oxyrhopus guibei (Serpentes: Colubridae)." Veterinary parasitology 224 (2016): 60-64. It is thought that Hexametra may be the causative agent of ocular disease, diffuse unilateral subacute neuroretinitis, (DSUN), in Brazil.Souza et al., 2007 V.L. Souza, A.P. Santos T.M. d. Peña, V.L.F. Luz, I.J.D. Reis Caracterização dos répteis descartados por mantenedores particulares e entregues ao Centro de Conservação e Manejo de Répteis e Anfíbios – RAN. Rev. Biol. Neotrop., 4 (2007), pp. 149–160
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