Apophallation is the biting off of the penis, known to occur in terrestrial slugs, which are hermaphroditic gastropod mollusks. It has been reported in some species of banana slugs, Ariolimax, and in the distantly related Deroceras laeve.
Deroceras praecox is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras laeve, the marsh slug, is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
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 Agriolimacidae. This species is an important agricultural pest.
Agriolimacidae is a family of small and medium-sized land slugs, or shell-less snails, terrestrial pulmonate gastropod mollusks.
Deroceras is a taxonomic genus of small to medium-sized air-breathing land slugs in the family Agriolimacidae.
Deroceras fatrense is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras tarracense is a species of terrestrial slugs in the family Agriolimacidae. This species is endemic to Spain, where it occurs abundantly in the Sierra del Montsant, in the province of Tarragona.
Deroceras turcicum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae.
Deroceras agreste is a species of air-breathing land slug in the family Agriolimacidae. Its common names include field slug, grey field slug, milky slug, and northern field slug.
Deroceras panormitanum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae.
Deroceras rodnae is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras sturanyi is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras hesperium, common name the evening fieldslug, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras juranum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras invadens is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. Until 2011, this widely distributed species was known as Deroceras panormitanum, and earlier as Deroceras caruanae or Agriolimax caruanae, but Reise et al. (2011) showed that these names refer to a distinct species of similar external appearance known at that time only from Sicily and Malta. Consequently, although the more widespread species was already well known, it then had to be redescribed under the new name of D. invadens. Genetic evidence has indicated that D. invadens is native in southern Italy, including parts of Sicily, and possibly parts of central Italy. Elsewhere it has been introduced, predominantly within the last 100 years, but its spread has been constrained by cold winter temperatures.
The mating of gastropods is a vast and varied topic, because the taxonomic class Gastropoda is very large and diverse, a group comprising sea snails and sea slugs, freshwater snails and land snails and slugs. Gastropods are second only to the class Insecta in terms of total number of species. Some gastropods have separate sexes, others are hermaphroditic. Some hermaphroditic groups have simultaneous hermaphroditism, whereas some sequential hermaphroditism. In addition, numerous very different mating strategies are used within different taxa.
Deroceras cecconii is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. Although it was long considered a synonym of Deroceras panormitanum, a 2020 article establishes that it is a distinct species widely distributed in the central part of the Italian peninsula. It is also known as an introduction at one site in eastern Germany.
