Deroceras reticulatum
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Deroceras reticulatum, common names the grey field slug, grey garden slug, and milky slug, is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriol
Nebria brevicollis, and numerous other kinds of carabid beetles, feed on this slug species
The reproductive system of gastropods varies greatly from one group to another within this very large and diverse taxonomic class of animals. Their reproductive strategies also vary greatly.
Marine gastropods mating.
A stack of the protandrous species Crepidula fornicata: the small individual at the extreme lower left is currently a male, the other individuals are large enough to have become female
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).