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Studies on the Life History of Sogandaritrema progeneticus (Digenea: Microphallidae)
Jeffrey M. Lotz and Kenneth C. Corkum
The Journal of Parasitology
Vol. 69, No. 5 (Oct., 1983), pp. 918-921
Stable URL: http://www.jstor.org/stable/3281058
Page Count: 4
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Sogandaritrema progeneticus parasitizes the crayfishes Cambarellus shufeldtii, C. puer, and Procambarus clarkii in Louisiana. Xiphidiocercariae of the Ubiquita type developed in sporocysts in Amnicola peracuta (Mollusca). Field-collected snails were infected only from April through June. In the laboratory, cercariae were liberated from the snail host throughout a 24-hr period, but significantly more were released during daylight hours. Free-swimming cercariae penetrated the gill filaments of C. shufeldtii, reached the hemocoel within 18 days, and became gravid after 1 mo of development in crayfish at 22 ± 3 C.
The Journal of Parasitology © 1983 The American Society of Parasitologists