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'''''Deroceras panormitanum''''' is a [[species]] of air-breathing land [[slug]], a [[Terrestrial animal|terrestrial]] [[pulmonate]] [[gastropod]] [[mollusk|mollusc]] in the family Agriolimacidae. This article is about ''Deroceras panormitanum'' ''[[sensu stricto]]'', which is now known to occur only in Sicily and Malta. Previous to 2011,<ref name="Reiseetal2011">{{cite journal | author=Reise, H., Hutchinson, J.M.C., Schunack, S., Schlitt, B.| title=''Deroceras panormitanum'' and congeners from Malta and Sicily, with a redescription of the widespread pest slug as ''Deroceras invadens'' n. sp.| journal=Folia Malacologica| year=2011| volume=19| issue=4| pages=201–233|
'''''Deroceras panormitanum''''' is a [[species]] of air-breathing land [[slug]], a [[Terrestrial animal|terrestrial]] [[pulmonate]] [[gastropod]] [[mollusk|mollusc]] in the family Agriolimacidae. This article is about ''Deroceras panormitanum'' ''[[sensu stricto]]'', which occurs predominantly only on Sicily and Malta.<ref name="Neobiota">{{cite journal|author=Hutchinson, J.M.C., Reise, H., Robinson, D.G.|year=2014|title=A biography of an invasive terrestrial slug: the spread, distribution and habitat of ''Deroceras invadens''|journal=Neobiota |volume=23|pages=17–64|url=http://dx.doi.org/10.3897/neobiota.23.7745}}</ref> Previous to 2011,<ref name="Reiseetal2011">{{cite journal | author=Reise, H., Hutchinson, J.M.C., Schunack, S., Schlitt, B.| title=''Deroceras panormitanum'' and congeners from Malta and Sicily, with a redescription of the widespread pest slug as ''Deroceras invadens'' n. sp.| journal=Folia Malacologica| year=2011| volume=19| issue=4| pages=201–233|
url=http://www.senckenberg.de/files/content/forschung/abteilung/zoologie/malakologie/malak/hutch/hutchpub/fom3.htm| doi=10.2478/v10125-011-0028-1}}</ref> 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 (organism)|pest]].
url=http://www.senckenberg.de/files/content/forschung/abteilung/zoologie/malakologie/malak/hutch/hutchpub/fom3.htm| doi=10.2478/v10125-011-0028-1}}</ref> 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 (organism)|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]]''.
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]]''.
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==Distribution==
==Distribution==
This species is widespread on Sicily and Malta<ref name="Reiseetal2011"/><ref>{{cite book|author=Giusti, F., Manganelli, G., Schembri, P.J.|year=1995|title=The non-marine molluscs of the Maltese Islands. Monografie XV, Museo Regionale di Scienze Naturali, Torino}}</ref> but currently unknown elsewhere. However, similar forms, which might prove to be conspecific, are known from nearby areas of Italy.<ref name="Reiseetal2011"/>
This species is widespread on Sicily and Malta<ref name="Reiseetal2011"/><ref>{{cite book|author=Giusti, F., Manganelli, G., Schembri, P.J.|year=1995|title=The non-marine molluscs of the Maltese Islands. Monografie XV, Museo Regionale di Scienze Naturali, Torino}}</ref> but has now been recorded also at one site in Wales, at one site in northern Italy, at two neighbouring sites on Madeira, and on produce originating from the Azores.<ref name="Rowsonetal2014">{{cite journal|author=Rowson. B., Anderson, R., Turner, J.A., Symondson, W.O.C.|year=2014|title=The slugs of Britain and Ireland: undetected and undescribed species increase a well-studied, economically important fauna by more than 20% |journal=PLoS ONE|volume=9|pages=e91907|url=http://dx.doi.org/10.1371/journal.pone.0091907}}</ref><ref name="Neobiota"/>


== References ==
== References ==

Revision as of 22:01, 12 September 2014

Deroceras panormitanum
Two individuals of Deroceras panormitantum from different sites on Sicily (identity checked by observing matings)
NE
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
clade Limacoid clade
Superfamily:
Family:
Genus:
Species:
D. panormitanum
Binomial name
Deroceras panormitanum
(Lessona & Pollonera, 1882)
Synonyms

Deroceras pollonerae
Deroceras caruanae
Deroceras dubium

Deroceras panormitanum is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. This article is about Deroceras panormitanum sensu stricto, which occurs predominantly only on Sicily and Malta.[1] Previous to 2011,[2] 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.

This species is not listed in IUCN red list – not evaluated (NE).[3]

Synonymy

Deroceras panormitanum was described from Palermo in Sicily.[4] It is now widely accepted[2][5][6] that Deroceras pollonerae also described from Palermo,[7] Deroceras caruanae described from Valletta on Malta,[8] and Deroceras dubium from Malta[9] are the same species. Recently Reise et al. (2011)[2] also synonymised Deroceras giustianum from NW Sicily[10] but considered the status of further similar taxa from this general region as uncertain. Now that Deroceras invadens has been recognised as distinct, the morphological variation within Deroceras panormitanum sensu stricto is not as great as once thought.

Description

The skin and flesh of Deroceras panormitanum is watery and fairly transparent. The skin colour varies between pale grey, brown, and black. The mucus is colourless. Externally, Deroceras panormitanum is impossible to distinguish from Deroceras invadens and Deroceras golcheri, which occur in the same islands, and from a variety of other Deroceras species occurring elsewhere.[2][6]

Internally the penis of Deroceras panormitanum has two side pockets (penial caecum and penial lobe), as in Deroceras invadens but unlike in Deroceras golcheri or related forms on Sicily.[2] However, in Deroceras panormitanum the caecum is more tapering and pointed than in Deroceras invadens and the lobe may appear reduced or missing. Also unlike in Deroceras invadens, the penial glands are knobbly and attach closer to the caecum than to the lobe. And inside the penis, between the distal and proximal parts, is a small flap that is absent in other species.

Reise et al. (2011)[2][6] detail the mating behaviour and compare it with that of Deroceras invadens and Deroceras golcheri.

Distribution

This species is widespread on Sicily and Malta[2][11] but has now been recorded also at one site in Wales, at one site in northern Italy, at two neighbouring sites on Madeira, and on produce originating from the Azores.[12][1]

References

  1. ^ a b Hutchinson, J.M.C., Reise, H., Robinson, D.G. (2014). "A biography of an invasive terrestrial slug: the spread, distribution and habitat of Deroceras invadens". Neobiota. 23: 17–64.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ a b c d e f g Reise, H., Hutchinson, J.M.C., Schunack, S., Schlitt, B. (2011). "Deroceras panormitanum and congeners from Malta and Sicily, with a redescription of the widespread pest slug as Deroceras invadens n. sp". Folia Malacologica. 19 (4): 201–233. doi:10.2478/v10125-011-0028-1.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 10 January 2008.
  4. ^ Lessona, M., Pollonera, C. (1882). Monografia dei limacidi italiani. Turin.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: multiple names: authors list (link)
  5. ^ Giusti, F. (1986). "Notulae malacologicae, XXXIV. Again on the taxonomic status of Deroceras panormitanum (Lessona & Pollonera, 1882), Deroceras pollonerai (Simroth, 1889) and Deroceras caruanai (Pollonera, 1891)". Boll. Malacol. 22: 57–64.
  6. ^ a b c Wiktor, A. (2000). "Agriolimacidae (Gastropoda: Pulmonata) – a systematic monograph". Ann. Zool. 49: 347–590.
  7. ^ Simroth, H. (1889). "Beiträge zur Kenntniss der Nacktschnecken". Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. 21: 177–186.
  8. ^ Pollonera, C. (1891). "Appunti di malacologia. VII. Intorno ai Limacidi di Malta". Boll. Mus. Zool. Anat. Comp. R. Univ. Torino. 6: 1–4. {{cite journal}}: line feed character in |title= at position 40 (help)
  9. ^ Hoffmann, H. (1941). "Über einige Limaciden". Zool. Anz. 136: 243–259.
  10. ^ Wiktor, A. (1998). "Two new for science Deroceras species from France and the Italian island of Sicily (Gastropoda: Pulmonata: Agriolimacidae)". Malak. Abh. 19: 13–19.
  11. ^ Giusti, F., Manganelli, G., Schembri, P.J. (1995). The non-marine molluscs of the Maltese Islands. Monografie XV, Museo Regionale di Scienze Naturali, Torino.{{cite book}}: CS1 maint: multiple names: authors list (link)
  12. ^ Rowson. B., Anderson, R., Turner, J.A., Symondson, W.O.C. (2014). "The slugs of Britain and Ireland: undetected and undescribed species increase a well-studied, economically important fauna by more than 20%". PLoS ONE. 9: e91907.{{cite journal}}: CS1 maint: multiple names: authors list (link)

External links