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Alcadia conuloides.png
Alcadia conuloides
Helicina citrina - Adams.jpg
Alcadia maxima
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Neritimorpha
clade Cycloneritimorpha
Superfamily: Helicinoidea
Family: Helicinidae
Genus: Alcadia
Gray, 1840[1]

Alcadia is a genus of tropical and subtropical land snails with an operculum, terrestrial gastropod mollusks in the family Helicinidae.


Species within the genus Alcadia include:

subgenus Idesa H. Adams & A. Adams, 1856[3]


  1. ^ Gray J. E. (1840). Synopsis of the contents of the British Museum: 1-165. London. Alcadia is on the page 42.
  2. ^ a b c d e f g h i j k l m n o "Mollusca" Archived 2011-07-18 at the Wayback Machine.. Diversidad Biológica Cubana, accessed 23 March 2011.
  3. ^ Adams H. & Adams A. (1856). The genera of Recent Mollusca, Helicinidae 2: 300-309, 3: pl. 87. London. Idesa is on the page 304.