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Extinct genus of gastropods
Ptychalaea is a fossil genus of very small, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Gastrocoptidae. The type
Ptychalaea
Species of gastropod
Vertiginidae. This species is vulnerable. Was erroneously placed in genus Ptychalaea. The length of the shell attains 1.6 mm, its diameter 1 mm. (Original
Vertigo_dedecora
Genus of gastropods
ventricosa (Morse, 1865) † Vertigo flexidens (Reuss, 1861): synonym of † Ptychalaea flexidens (Reuss, 1861) Vertigo hachijoensis Pilsbry, 1919: synonym of
Vertigo_(gastropod)
Rota, Aguiguan, Tinian and Saipan Nesopupa sp. - undescribed species Ptychalaea sp. - undescribed species from Sarigan, Alamagan, Pagan, Agrihan, Asuncion
List of land snails of the Mariana Islands
List_of_land_snails_of_the_Mariana_Islands
of Pseudonerinea. Ptychalaea mystica Sp. nov Valid Stworzewicz & Pokryszko Eocene Europe (Baltic Sea coast) A species of Ptychalaea known from Baltic
2015_in_paleomalacology
praslinus Partula hyalina Cataract gorge snail (Pasmaditta jungermanniae) Ptychalaea dedecora Punctum seychellarum Samoana margaritae Sheldonia puzeyi Speleodentorcula
List_of_vulnerable_molluscs
Family of gastropods
Balticopta Balashov & Perkovsky, 2020 - fossil from Eocene Baltic amber † Ptychalaea Boettger, 1889 fossil from Miocene and Eocene of Europe Subfamily Gastrocoptinae
Gastrocoptidae
praslinus Partula hyalina Cataract gorge snail (Pasmaditta jungermanniae) Ptychalaea dedecora Punctum seychellarum Samoana margaritae Sheldonia puzeyi Speleodentorcula
List of vulnerable invertebrates
List_of_vulnerable_invertebrates
Animals classified as vulnerable by the IUCN
quintalia Pasmaditta jungermanniae Punctum seychellarum Nesopupa madgei Ptychalaea dedecora Natalina wesseliana Spelaeodiscus bulgaricus Acanthennea erinacea
IUCN Red List vulnerable species (Animalia)
IUCN_Red_List_vulnerable_species_(Animalia)
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