Allognathus

Allognathus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Helicidae, the true snails. The genus is endemic to the Balearic Islands (Western Mediterranean) being present in all major islands and in several small islets.[2] The genus colonized the archipelago from the south-eastern Iberian Peninsula during the Middle Miocene, throughout a land-bridge connection. The different species belonging to Allognathus live in crevice rocks or under stones.

Allognathus
Apertural view of the shell of Allognathus graellsianus
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Helicidae
Genus:
Allognathus

For some authors,[3] Allognathus include two subgenus, Allognathus s. str., that is monospecific, and Iberellus Hesse 1908, that includes at least two species.

Species

Species within the genus Allognathus include:[2][3]

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gollark: But that university has basically no incentive to have reasonable prices.
gollark: I said "many", not "all".
gollark: The government throwing money at it will not make that better.
gollark: In many cases you just need to have *a degree* of some sort, even if it's completely pointless, because it shows... that you have the patience to do a thing for 4 years or something??

References
  1. Tryon G. W. & Pilsbry H. A. 1888. Manual of Conchology; structural and systematic. Second Series: Pulmonata, 4. Helicidae. Vol. II., 296 pp., Plates 1-69. Philadelphia.
  2. Chueca, Luis J.; Madeira, María José; Gómez-Moliner, Benjamín J. (October 2015). "Biogeography of the land snail genus Allognathus (Helicidae): middle Miocene colonization of the Balearic Islands". Journal of Biogeography. 42 (10): 1845–1857. doi:10.1111/jbi.12549.
  3. Chueca, Luis J.; Forés, Maximino; Gómez-Moliner, Benjamín (2013). "Consideraciones nomenclaturales sobre las especies del género Allgonathus (Gastropoda: Pulmonata: Helicidae) y estudio anatómico de Allognathus hispanicus tanitianus". Iberus. 31: 63–74.
  • Bank, R. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16, 2017


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