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Aspects of the Life History of Cyclocoelum brasilianum Stossich 1902 (Trematoda: Cyclocoelidae)

Stephen J. Taft
The Journal of Parasitology
Vol. 61, No. 6 (Dec., 1975), pp. 1041-1043
DOI: 10.2307/3279370
Stable URL: http://www.jstor.org/stable/3279370
Page Count: 3
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Aspects of the Life History of Cyclocoelum brasilianum Stossich 1902 (Trematoda: Cyclocoelidae)
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Abstract

Eggs of Cyclocoelum brasilianum are released into water, and emerged miracidia (each containing a redia) attach to aquatic snails. Rediae bore into the molluscan host, leaving the empty miracidia behind. Encysted cercariae are seen within rediae by day 14, after which the number of metacercariae increases within rediae. C. brasilianum larvae develop most readily in Gyraulus hirsutus. Attempts to infect killdeers (Charadrius vociferus) and spotted sandpipers (Actitis macularia) with C. brasilianum metacercariae failed.

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