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This is a lengthy process whereby the penis of one or both slugs is chewed off using the radula. In the case where one penis is chewed off, this is usually done by the other slug. A replacement penis does not grow back. Apophallation is most widely found in Ariolimax species, [1] which have internal sperm exchange. In these slugs, apophallation ...
Apophallation is the biting off of the penis, known to occur in terrestrial slugs, which are hermaphroditic gastropod mollusks. It has been reported in some species of banana slugs, Ariolimax, and in the distantly related Deroceras laeve. [1] [2] In the mating of banana slugs, the penis is inserted into the body of the partner.
The two slugs circle clockwise around each other, each probing and attempting to pierce the underside of the other with the stylet while avoiding getting pierced itself. When one or both is successful, the penis is thrust into the other slug's gonopore, where further spines hold it in place, and mating takes place. Copulation may be reciprocal ...
Banana slugs (like other gastropods and many other mollusks) have a radula, a ribbon-like anatomical structure covered in rows of microscopic teeth. The radula is used for feeding. [8] Individuals can move at 6 + 1 ⁄ 2 inches (17 cm) per minute. [9] Slugs use two pairs of tentacles to sense their environment.
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A slug on a wall in Kanagawa, Japan.. Slug, or land slug, is a common name for any apparently shell-less terrestrial gastropod mollusc.The word slug is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a small internal shell, particularly sea slugs and semi-slugs (this is in contrast to the common name snail, which applies to ...
Aug. 1—An unusually wet, cool summer has made Southcentral Alaska a particularly hospitable place for an invasive slug species that appears to have made a home in Anchorage's Hillside.