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The Kerry slug has an internal shell or shell plate that resembles those found in land slugs of the genus Limax; it is ovoid, solid and chalky with a transparent conchiolin (horny) base. The shell plate is usually convex above and concave beneath and has some indistinct, concentric lines of growth.
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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 ...
This is particularly common in the opisthobranchs and in some of the pulmonates, for example in the semi-slugs. Some gastropods have no shell at all, or only an internal shell or internal calcareous granules, and these species are often known as slugs. Semi-slugs are pulmonate slugs with a greatly reduced external shell which is in some cases ...
Chlamydephorus slugs have an internal vestigial shell. The pallial organs are located at the posterior end of the elongated body and embedded under the dorsal integument. The elongation of the buccal mass varies greatly among the different species of the family and this is reflected in the size of the radula and the number of tee
A venomous sea creature probably isn't high on your must-see list when on a beach vacation. But that's exactly what happened to one San Antonio resident as she explored the Gulf Coast.
As of February 2021, the International Union for Conservation of Nature (IUCN) lists 299 extinct species, 149 possibly extinct species, 14 extinct in the wild species, two possibly extinct in the wild species, eight extinct subspecies, one possibly extinct subspecies, and five extinct in the wild subspecies of mollusc.
shell of Rhodacmea filosa 31 May 2011 - the Wicker ancylid Rhodacmea filosa, (shell pictured) listed as extinct by the IUCN Red List, has been rediscovered. New gastropod taxa described in 2011 18 April 2011 - Research on the mating of Chelidonura sandrana contradicts the traditional theory about mating in simultaneous hermaphrodites .