Survey of Trematodes from Terrestrial Gastropods and Small Mammals in Southeastern Nebraska, U.S.A

Larval trematodes were surveyed from 371 terrestrial gastropods representing 10 species collected in 2007 from 2 localities in southeastern Nebraska, U.S.A. Metacercariae of Brachylaima thompsoni occurred in Neohelix albolabris and Webbhelix multilineata; metacercariae of Leucochloridium variae occurred in Novisuccinea ovalis; metacercariae of Panopistus pricei occurred in N. ovalis, N. albolabris, and W. multilineata; and metacercariae of Postharmostomum helicis occurred in Anguispira alternata, Euchemotrema leai, and W. multilineata. Deroceras laeve, Glyphyalinia indentata, Lehmannia valentiana, Limax maximus, and Nesovitrea electrina were not infected. Shrews (Blarina hylophaga), deer mice (Peromyscus leucopus), and hispid pocket mice (Chaetodipus hispidus) were collected from the same localities, with B. hylophaga harboring adults of B. thompsoni and P. pricei, and P. leucopus parasitized by adults of B. thompsoni and P. helicis. New host records include B. hylophaga as definitive host for B. thompsoni and P. pricei, and E. leai as second-intermediate host of P. helicis. Survey data of trematodes from terrestrial gastropods in Nebraska from a previously unpublished dissertation are also presented.