Smaragdinella calyculata, South Pacific. In the Anaspidea there is a tendency for parapodia to enlarge, and together with the mantle, to enclose the fragile shell (with increasingly reduced and involute spire). There is also a tendency for the mantle cavity to be reduced in size and pushed to the right, and for the visceropallium (visceral mass and mantle) to be dominated by the head-foot.
Life Stages And Gender
Coloration/Patterning :: Cryptic
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:
Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2018. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.
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.
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.