Burch, Jack

14.rjb2

Radix

Radix sp., showing copulation. The top snail is inserting its preputium (with penis at the preputium's tip) into the female gonopore of the bottom snail. The female gonopore is at the posterior of the "neck" stalk. The male gonopore is behind the right tentacle. During copulation, the preputium enverts carrying the penis at it enverted tip. Turgor pressure forces the preputium and penis out; penial retractor muscles pull it back after copulation. The vas deferens can be seen inside the preputium.

About this image

Identification
Radix
Contributors
John B. Burch, University of Michigan-Ann Arbor
photographer copyright holder
Subjects
Subject Live Animal
Type Photo
Life Stages and Gender adult/sexually mature
Behaviors reproduction copulation

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. "14.rjb2.jpg" (On-line), Animal Diversity Web. Accessed {%B %d, %Y} at https://animaldiversity.org/collections/contributors/jack_burch/14.rjb2/

Last updated: 2004-52-01 / Generated: 2025-09-15 01:58

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