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Science 25 June 1965:
Vol. 148. no. 3678, pp. 1747 - 1748
DOI: 10.1126/science.148.3678.1747
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Articles

Trematode Parasitism and Polymorphism in a Marine Snail

Wm. H. Ewers 1 and C. R. Rose 1

1 Zoology Department, Australian National University, Canberra, A.C.T.

Velacumantus australis is a common Australian snail which harbors several larval trematodes. Many populations have a small proportion of banded shells. Analysis of three samples from a coastal lake shows that banded snails are less likely to harbor larval trematodes than unbanded snails.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)