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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 ...
Mating Cornu aspersum garden snails The terrestrial slug Arion vulgaris, a mating pair with intertwined, everted penises, carrying out external sperm exchange The nudibranch sea slug Nembrotha rutilans, a mating pair. The mating of gastropods is a vast and varied topic, because the taxonomic class Gastropoda is very large and diverse, a group ...
The male genitalia consist of a tube that serves the formation of a spermatophore and its transfer into the female parts of the mating partner. The penis is the most distal and muscular part. A spermatophore is formed in the epiphallus (between vas deferens and penis) and the flagellum (continuation of the epiphallus proximally from the vas ...
This process is unrelated to the coiling of the shell, which is a separate phenomenon. ... Courtship and mating in gastropods: fertilization is internal or external ...
Mating process of Drymaeus tripictus (Source: Zaidett Barrientos) The mating process is by shell mounting, where the male acting individual slides on top of the female acting individual, followed by multiple stimulatory activity, where the radula of the male acting individual scrapes the shell and the mantle collar of the female acting ...
18 April 2011 - Research on the mating of Chelidonura sandrana contradicts the traditional theory about mating in simultaneous hermaphrodites. 29 March 2011 - New family Horaiclavidae and families within Conoidea redefined; 8 February 2011 - A BBC crew filmed how the spider Olios coenobitus lifts a land gastropod shell into its web to use as a ...
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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 ...