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The slugs crawl in a clockwise direction so that their right sides, containing the genital pores, continually face each other. This circling may serve to assess whether the other is ready to mate; the speed of circling generally decreases as courtship progresses. The slugs then lie close together, remaining in the antiparallel configuration.
Gametes remain in the gonads throughout the winter and early spring. The female reproductive role takes over again in May with fertilization of the gametes to form zygotes. The cycle comes full circle in late summer once again, with spawning. [6] [citation needed]
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 ...
There have been hybridizations of snail species; although these do not occur commonly in the wild, in captivity they can be coaxed into doing so. Parthenogenesis has been reported only in one species of slug, [21] but many species can self-fertilise. [22] C. obtusus is a prominent endemic snail species of the Eastern Alps.
As winter approaches here in the northern hemisphere, the nights grow longer, the trees barer, and the weather a touch gloomier. It’s the perfect excuse to stay cozy indoors and take a break ...
This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca.
Limax maximus (literally, "biggest slug"), known by the common names great grey slug and leopard slug, is a species of slug in the family Limacidae, the keeled slugs. [4] It is among the largest keeled slugs, Limax cinereoniger being the largest. Limax maximus is the type species of the genus Limax. The adult slug measures 10–20 cm (3.9–7.9 ...
Studies have shown that this species name has been frequently misapplied to the more widespread Riccardoella oudemansi, the white slug mite. Despite its name, R. limacum is typically a restricted parasite of snails, while R. oudemansi is the common species on slugs, although it occasionally feeds on snails too. [4]