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In simultaneous reciprocal mating, both slugs act as males and females at the same time. This manner of mating requires that the pair of genitalia be exactly opposed prior to copulation, a task made difficult in slugs as they have no sense of hearing and very limited vision. [8] Hence, they rely heavily on chemoception and contact sensation.
VD = vas deferens Head of a mating Helix pomatia showing the everted penis (P), and the dart sac (S) in the process of shooting a love dart (D). Head of Helix pomatia after mating with everted vagina (V) and penis (P). Pulmonate land gastropods are simultaneous hermaphrodites and their reproductive system is complex. It is all completely ...
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 ...
Boettgerilla pallens is very narrow and slender slug, almost worm-like and sharply keeled. [10] The color is pale greyish or with bluish hue. [10] The head and keel is slightly darker. [10] The mantle is pointed at its posterior end and equipped with fine concentrical grooves. [10] Sole is pale yellow. [10] Mucus is colourless. [10]
Banana slugs are hermaphroditic, meaning they are both male and female at the same time. [3] During reproduction, Ariolimax buttoni engages in apophallation - the behavior in which a slug chews off its mating partner's penis. [5] Their mating season is very long, lasting from February to early September. In addition, the copulation itself is long.
"Mating behaviour clarifies the taxonomy of slug species defined by genital anatomy: the Deroceras rodnae complex in the Sächsische Schweiz and elsewhere". Mollusca. 27: 183–200. Reise, H. (1995). "Mating behaviour of Deroceras rodnae Grossu & Lupu, 1965 and D. praecox Wiktor, 1996 (Pulmonata: Agriolimacidae)". Journal of Molluscan Studies.
Like other terrestrial slugs, the black slug is a hermaphrodite, preferring to find a mate—often several—but can self-fertilize. After mating, the black slug seeks a dark, moist environment such as beneath mosses—occasionally within topsoil—to lay its eggs about 5 mm (0.20 in) in diameter.
Land snail is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as slugs). However, it is not always easy to say which species are terrestrial, because some are more or less amphibious between land and fresh water, and others are relatively amphibious between land and salt water.