The identification and characteristics of Echinoparyphium rubrum (Cort, 1914) comb. new (Trematoda, Echinostomatidae) based on experimental evidence of the life cycle

Authors

Ivan Kanev, Bulgarian Academy of Sciences
Robert Sorensen, Purdue University
Mauritz Strerner, University of Nebraska State Museum
Rebecca Cole, USGS, BRD, National Wildlife Health Center, Madison WI
Bernard Fried, Lafayette College

Date of this Version

1998

Citation

Acta Parasitologica, 1998,43(4), 181-188

Comments

U.S. government work

Abstract

The life cycle of Echinoparyphium rubrum (Cort, 1914) comb. n. has been completed experimentally. All of the developmental stages - egg, miracidium, sporocyst, mother and daughter rediae, cercaria, metacercaria, and adult - were examined and described. The miracidia infected freshwater snails of the genus Physa, P. gyrina and P. occidentalis. Attempts to infect snails of the genera Lymnaea, L. auricularis, L. peregra. L. truncatula and Bulinus, B. truncatus failed. Cercariae infected various pulmonate and prosobranch freshwater snails, mussels, frogs, water turtles and planarians. The adults developed in the small intestine of birds and mammals. The identity and major characteristics of Echinoparyphium rub rum are discussed. Synonyms of E. rubrum are Cercaria rubra Cort, 1914; Cercaria biflexa Faust, 1917; Cercaria chisolenata Faust, 1918; Echinostoma callawayensis Barker et Noll, 1915; Echinostoma revolutum of Johnson (1920); Echinoparyphium elegans of Cannon (1938), of Bain and Trelfall (1977), of Mahoney and Trelfall (1977); and Echinoparyphium recurvatum of Jilek (1977), Harley (1972), Sankurathri and Holmes (1976). Comparisons are made between E. rubrum and its 43-collar-spined allies: E. flexwn from North America, E. cinctum from Europe, E. dunni from Asia and E. elegans from Africa.