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Full-Text Articles in Pathogenic Microbiology
Euryhelmis Cotti N. Sp. (Trematoda: Heterophyidae) With Observations On Its Life Cycle, Michael Joseph Simon
Euryhelmis Cotti N. Sp. (Trematoda: Heterophyidae) With Observations On Its Life Cycle, Michael Joseph Simon
Dissertations and Theses
Fish of the genus Cottus were found infected with heterophyid metacercariae. Laboratory animals were infected with the metacercariae, and adult heterophid trematodes were recovered. These flukes were found to represent an undescribed species of the genus Euryhelmis. Various streams in the Willamette Valley and coastal areas were sampled for infected Cottus sp. Snails of the genera Oxytrema and Fluminicola were collected. Several possible definitive hosts were examined. A partial review of the subfamily Apophallinae and a complete review of the genus Euryhelmis are presented. Euryhelmis cotti n. sp. is placed in the subfamily Apophallinae, and its life cycle …
Life History Of Philophthalmus Megalurus (Cort, 1914) In Western Oregon, Toni Anne Mcmillan
Life History Of Philophthalmus Megalurus (Cort, 1914) In Western Oregon, Toni Anne Mcmillan
Dissertations and Theses
The specific identification of a megalurous cercaria found in the snail Oxytrema plicifera was accomplished by completing the life cycle in the laboratory. This species is compared with the eastern Philophthalmus megalurus and P. gralli with which it was once confused. The eggs, miracidia, and rediae of the Oregon species were found to be similar to those of the above species. The body and organ sizes and sucker ratios for the cercariae and adult stages obviously indicate that the Oregon species is Philophthalmus megalurus.