New species of Gyrodactylus and Dactylogyrus (Trematoda: Monogenea) from fishes of Nebraska.

Six new monogenetic trematodes are described from Nebraska fishes: Gyrodactylus bulbacanthus sp. n. from Fundulus kansae (Garman); G. callawayensis sp. n. from Notropis lutrensis (Baird and Girard); G. eos sp. n. from Phoxinus eos (Cope); G. nebraskensis from Phoxinus neogaeus (Cope); G. planensis from Notropis dorsalis (Agassiz); and Dactylogyrus pectenatus from Pimephales promelas (Rafinesque). This is the second report of monogeneans from Nebraska fishes.