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Cornu aspersum in warm regions commonly emerges in moist weather in winter. Sinistral form (exceptional) and dextral form (common) The adult bears a hard, thin calcareous shell 25–40 millimetres (1– 1 + 5 ⁄ 8 in) in diameter and 25–35 millimetres (1– 1 + 3 ⁄ 8 in) high, with four or five whorls.
Cornu aspersum (O. F. Müller, 1774) Cornu cephalaeditana (Giannuzzi-Savelli, Sparacio & Oliva, 1986) Cornu cretense Hausdorf, Bamberger & Walther, 2020 Cornu insolida (Monterosato, 1892) Cornu mazzullii (De Cristofori & Jan, 1832) Synonyms [1] Cornu (Cornu) Born, 1778 Cornu (Erctella) Monterosato, 1894 Cryptomphalus Charpentier, 1837 Erctella ...
In Cornu aspersum, there are three types of secretion. One type is translucent and not adhesive, the kind that the snail leaves behind as it moves (the slime trail), another is similar but thicker, condensed, more viscous and elastic, which is used to adhere to various surfaces, and a third viscous coating on the dorsal surface that is a ...
Again, in some land snails, an unusual feature of the reproductive system of gastropods is the presence and utilization of love darts. [citation needed] In many marine gastropods other than the opisthobranchs, there are separate sexes (dioecious/gonochoric); most land gastropods, however, are hermaphrodites. [citation needed]
SEM image of lateral view of a love dart of the land snail Monachoides vicinus.The scale bar is 500 μm (0.5 mm). Drawing showing a side view of the love dart of the snail Helix pomatia. 1 = flared base of the dart. 2 = position of the inner cavity. 3 = longitudinal flanges or vanes. 4 = sharp tip or blade of the dart A love dart from Cornu aspersum (garden snail) on a ruler for comparison ...
Characters on the genital system have been used to define the genus and its subgenera. Unlike Cornu, the penis of Helix contains two papillae with a central opening. There appears to be a tendency for a shortening of the diverticulum of bursa copulatrix and of the eppiphallus, but there is an overlap with related genera in these characters.
When it comes to the mating behaviour of simultaneous hermaphrodites such as pulmonate land snails and pulmonate land slugs, as well as opisthobranch sea snails and opisthobranch sea slugs, there is the question of which sexual role or roles an individual will adopt in a mating encounter. [4]
Cornu aspersum (previously Helix aspersa) – the common garden snail – in Israel Colonies of snails in Sicily. A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. Land snail is the common name for terrestrial gastropod mollusks that have shells (those without shells are ...