Known hosts of the nematode endoparasite (Ascarididae: Hexametra angusticaecoides), including the Madagascar leaf-nosed snake (Lamprophiidae: Langaha madagascariensis)

The nematode endoparasite, Hexametra angusticaecoides Chabaud and Brygoo, is an intestinal and coelomic nematode known only fromlizards and snakes. Herein, we provide a list of all known hosts to date, and document a new host, the Madagascar leaf-nosed snake, Langaha madagascariensis Bonnaterre (Lamprophiidae). Because the known paratenic hosts (mosquitos, midges, and cockroaches) of Hexametraangusticaecoides are all extremely common in Florida, as well as Florida having the highest number of established non-native amphibiansand reptiles in the entire world, this should be a concern to biologists and conservationists regarding imported animals for the pet trade.