Spiroxys Schneider, 1866

Spiroxys sp. (larvae)

Host and record: Pseudis paradoxa (Linnaeus, 1758) (Co), Physalaemus albonotatus (Steindachner, 1864) (Co) . Site of infection: Gastric serous membrane.

Material deposited: CECOAL 0 8112501 ( P. paradoxa), CECOAL 10020901 ( P. albonotatus). References: González & Hamann (2010b; 2012b).

Life cycle: This genus parasitizes the stomach of freshwater turtles. Female nematodes expel eggs that pass out with the feces of the host and the first-stage larvae develop inside them. Larvae are ingested by copepods, the intermediate hosts. Infective larvae have been found in various potential paratenic hosts, such as snails, tadpoles and adults frogs, and larval and adult newts (Anderson 2000).