More Information
See Also
Additional Information
Trochozoa
Identification
Caption
Stagnicola elodes, S. reflexa and S. exilis. Stagnicola reflexa is actually a form of S. elodes that is one year older than individuals of most populations. In the middle of the last whorl of S. “reflexa” a lighter colored transverse stripe (a varix), marks the size of the shell when it over-wintered. As snails increase in size, the mantle secretes additional shell material at the edge of the mantle bordering the shell aperture. Thus, the shell also increases in size.
- 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.
The Animal Diversity Web team is excited to announce ADW Pocket Guides!
Search
Navigation Links
Classification
Related Taxa
- Unspecified Annelida segmented worms
- Class Aplacophora
- Class Bivalvia
- Class Cephalopoda
- Class Gastropoda
- Class Monoplacophora
- Class Polyplacophora
- Class Scaphopoda
To cite this page: Burch, J.2004. "052.rjb1.jpg" (On-line), Animal Diversity Web. Accessed December 27, 2024 at https://animaldiversity.org/collections/contributors/jack_burch/052.rjb1/
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.
- U-M Gateway | U-M Museum of Zoology
- U-M Ecology and Evolutionary Biology
- © 2020 Regents of the University of Michigan
- Report Error / Comment
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.
The ADW Team gratefully acknowledges their support.