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These land snails have opercula, which helps identify them as "winkles gone ashore", in other words, snails within the clade Littorinimorpha and the informal group Architaenioglossa. Members of the snail family Pulmonata , which includes carboniferous land sails and some freshwater snails of the order Basommatophora , are protandrous ...
Land slugs can be thought of as land snails that over evolutionary time have either lost the shell completely, have a very reduced external shell, or have retained only internal remnants of a shell. Land slugs are a highly polyphyletic group, which means that many land slug families are not at all closely related to one another.
The male sexual organ of an adult banana slug is quite large in proportion to its size, as well as compared to the female organ. It is possible for banana slugs, while mating, to become stuck together. If a substantial amount of wiggling fails to separate them, the male organ will be bitten off (using the slug's radula), see apophallation. If a ...
Preserved specimen have a length of 25–30 mm and a width of 6–8 mm. [3] The weight of adult slugs ranges from 991.2 mg to 3308.0 mg. [4] Reproductive system: The penis is rounded, and half as long as the epiphallus. [3] The epiphallus is slightly widened and truncated (as if cut off) at its end.
The leaf sheep sea slug (Costasiella kuroshimae), also known as the “leaf slug,” is a tiny, adorable marine creature that resembles a cartoon sheep with leafy “ears.”
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 ...
This slug has been introduced to Florida and it has become an agricultural pest there. [ 5 ] Controversially Cowie et al. (2009) [ 7 ] considered this species has not yet become established in the US, but it is considered to represent a potentially serious threat as a pest , an invasive species which could negatively affect agriculture, natural ...
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