Hybrids between American Pomatiopsis and Oriental Oncomelania Snails

Henry van der SchalieMuseum of Zoology, The University of Michigan, Ann Arbor, Michigan

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Lowell L. GetzMuseum of Zoology, The University of Michigan, Ann Arbor, Michigan

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Bonifacio C. DazoMuseum of Zoology, The University of Michigan, Ann Arbor, Michigan

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Summary

From experimental crossings of male Pomatiopsis lapidaria and female Oncomelania quadrasi, but not from the reciprocal crosses, hybrids, which were intermediate between the parent types and produced an F2 generation, were obtained. Crosses between male P. lapidaria and female Oncomelania formosana produced offspring which died before adult characters became evident.

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