Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Function of the cephalic tentacles in Littorina planaxis
Student Author(s): Peters, Ronald L.
Faculty Advisor(s): Abbott, Donald P.
Pages: 16
Location: Final Papers Biology 175H
Date: June 1964
Keywords: periwinkle
Abstract: 1. The cephalic tentacles, of Littorina planaxis, are not critical to general movement, but are used, while the snail moves, for tactile surveillance, and they enable the animal to perform more easily such maneuvers as righting. 2. Removal of the tentacles does not impair the ability to detect diffusible substances from the predacious snail A. spirata or from female L. planaxis. 3. The tentacles appear necessary for sex recognition on contact. 4. The tentacles are employed in following mucus trails on the substrate. The trails of other L. planaxis are followed more consistently than are trails laid down by other species of molluscs.
Notes: Published 1964, Veliger 7: 143-148