| Deroceras rodnae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Agriolimacidae |
| Genus: | Deroceras |
| Species: | D. rodnae |
| Binomial name | |
| Deroceras rodnae | |
Deroceras rodnae is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Deroceras rodnae was originally described from the Rodna Mountains in Romania by Romanian malacologists Alexandru Vasile Grossu and Dochiţa Lupu in 1965. [1] The figure in the original description is inadequate, but Wiktor (1973) [2] inspected the type specimen and found it to agree with one of the forms of Deroceras praecox that he had described at about the same time (Wiktor, 1966). [3] The name Deroceras rodnae has priority for that form and Deroceras praecox is now restricted to a form with a curved pocket at the end of the penis.
Recently Hutchinson & Reise (2009) [4] showed that western populations of Deroceras rodnae mate in a way so incompatible with that of populations from the east that they must be different species. The morphological differences in preserved specimens are subtle but molecular analyses have confirmed this distinction. Deroceras juranum Wüthrich, 1993 is the appropriate name to use for these western populations from the Alps and Germany.
Deroceras rodnae s.s. shows considerable interpopulation variation in its genital morphology. [4] For instance, in the Lesser Fatra Mountains (Malá Fatra) of Slovakia is a form with a long sarcobelum which Mácha (1981) [5] described as a new species Deroceras fatrense but which Wiktor (2000) [6] synonymised with Deroceras rodnae. It remains debatable whether Deroceras praecox might also be viewed as merely another such subspecific form. Note that the clear differences in mating behaviour between Deroceras praecox and Deroceras rodnae reported by Reise (1995) [7] now turn out to refer to differences between Deroceras praecox and Deroceras juranum.
Deroceras rodnae s.l. has been reported from Romania, Ukraine, [8] Slovakia, Poland, Czech Republic, Hungary, Austria, Switzerland, Germany, Croatia, and France. [6] However, these and most other published data concern Deroceras rodnae s. l.; that is they do not distinguish Deroceras rodnae s. s. and Deroceras juranum (see above). The type locality is in Romania and Hutchinson & Reise (2009) [4] confirmed the occurrence of Deroceras rodnae s. s. from Poland, Slovakia and Hungary, proposing that all Deroceras rodnae s. l. occurring east of the range of D. praecox (which is distributed around the Sudeten mountains) were this species. However, they also report an occurrence of Deroceras rodnae s. s. in Croatia and discuss a form of uncertain status in the uplands south of Dresden, Germany. They questioned identifications of Deroceras rodnae s. l. from Spain and Italy. [4]
Deroceras praecox is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae.
Arion distinctus is a species of air-breathing land slug in the family Arionidae, sometimes known as the roundback slugs. It is a terrestrial pulmonate gastropod mollusc. Several vernacular names exist, but it is unclear if they are much in use: brown soil slug, common garden slug, darkface arion, Mabille's orange-soled slug, April slug.
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 turcicum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae.
Deroceras panormitanum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. This article is about Deroceras panormitanumsensu stricto, which occurs predominantly only on Sicily and Malta. Previous to 2011, this name was also applied to what turned out to be a distinct species, Deroceras invadens, a species which has spread around the world and is often a pest. Because this is a recent change in the taxonomy, for information on the species commonly referred to in the literature before 2011 as Deroceras panormitanum, please see Deroceras invadens.
Milacidae is a family of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the superfamily Parmacelloidea.
Boettgerilla pallens, common name the worm slug, is a European species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Boettgerillidae.
Arion circumscriptus, common name brown-banded arion, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae. It is commonest in woodland, occurring across most of Europe, except for more southern regions, and is also widespread in North America. It has been argued that A. circumscriptus is best considered a colour morph of Arion fasciatus.
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.