Life Cycle of Euparyphium Neomexicanum sp. n. (Trematoda, Echinostomatidae)

Author

Gary L. Strong

Publication Date

5-24-1973

Abstract

The life cycle of Euparyphium neomexicanum sp. n. (Trematoda, Echinostomatidae) from New Mexico ditches, ponds, and streams was studied. The 45-spined adult, measuring 1.4 to 2.6 by 0.37 to 0.57 mm, was raised to maturity in 11 days in laboratory rats and mice. Eggs 84 to 113 by 57 to 78 µm, could not be hatched, and the miracidium was not observed. At least two redial stages are present in Physa virgata Gould. Cercariae exit the mother snail, then swim and encyst in the mother snail, in another Physa of the same species, or in Heliosoma tenue Philippi. The natural definitive host is unknown, but is possibly a riparian mammal. A key to the species of Euparyphium Dietz, 1909, is included, as well as zoogeographic, host, and synonym information for the genus.

Language

English

Document Type

Thesis

Degree Name

Biology

Level of Degree

Masters

Department Name

UNM Biology Department

First Committee Member (Chair)

Clarence Clayton Hoff

Second Committee Member

Clifford Smeed Crawford

Third Committee Member

Donald Walter Duszynski

Recommended Citation

Strong, Gary L.. "Life Cycle of Euparyphium Neomexicanum sp. n. (Trematoda, Echinostomatidae)." (1973). https://digitalrepository.unm.edu/biol_etds/564