The distribution of this taxon follows a phylogeographical pattern, where distribution ranges of the five subspecies are well delimited.[3] Two
subspecies are present in
Mallorca, two in
Eivissa and another one in
Menorca. Allognathus campanyonii campanyonii is mainly distributed in the lower areas of
Mallorca Island as well as in the
Cabrera archipelago. Besides, the populations from
Tarragona city walls belongs to this
phylogroup. In Mallorca, we can also find the taxa A. campanyonii n. ssp., that is present in the southern Tramuntana Mountains. A. c. tanitianus and A. c. pythiusensis are the two taxa distributed in the
Pityusic Islands, where the first one is present in
Eivissa main island and
Formentera whereas, the second one is present in Ses Bledes archipelago, although it is also present in several populations in
Eivissa main Island.[3] Finally, in Menorca Island we can find A. c. minoricensis, where two main phylogroups were recovered.[3]
^
abcdChueca, Luis J.; Madeira, María José; Gómez-Moliner, Benjamín J. (20 June 2015). "Biogeography of the land snail genusAllognathus(Helicidae): middle Miocene colonization of the Balearic Islands". Journal of Biogeography. 42 (10): 1845–1857.
doi:
10.1111/jbi.12549.
ISSN0305-0270.
^Chueca, Luis J.; Forés, Maximino; Gómez-Moliner, Benjamín J. (2013). "Consideraciones nomenclaturales sobre las especies del género Allognathus (Gastropoda: Pulmonata: Helicidae) y estudio anatómico de Allognathus hispanicus tanitianus". Iberus. 31: 63–74.
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: 16 July 2017