Burch, Jack
Identification
Caption
Bulimnea megasoma and Lymnaea stagnalis, Michigan. Several Bulimnea megasoma (upper left) and several Lymnaea stagnalis (upper right) were maintained for months in the same aquarium. After a while, numerous young appeared which seemed to be intermediate in shell characters between the two species. However, on electrophoretic analysis, the young were found to be all offspring of Bulimnea megasoma. Their change in appearance was due to the changed environment in which the offspring snails were born and matured. Such offspring would be called ecophenotypes.
- Type
- Photo
- Subject
- Specimen
Contributors
John B. Burch (photographer; copyright holder), Mollusk Division, Museum of Zoology, University of Michigan-Ann Arbor
Conditions of Use
This resource may not be downloaded and used without permission of the copyright holder except for educational fair use.
To cite this page: Burch, J.2004. "19.rjb2.jpg" (On-line), Animal Diversity Web. Accessed March 20, 2025 at https://animaldiversity.org/collections/contributors/jack_burch/19.rjb2/
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This material is based upon work supported by the National Science Foundation Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services.
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