{{Short description|Genus of gastropods}} {{Automatic taxobox | image = AllogonaTownsndExBinney19.jpg | image_caption = ''Allogona townsendiana'' from W. G. Binney, 1878<ref>Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 19.</ref> | display_parents = 2 | taxon = Allogona | authority = Pilsbry, 1939<ref>Pilsbry, Henry A. (1939). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(1): xvii.</ref> }}
[[Image:AllogonaProfunda1.jpg|left|thumb|200px|''Allogona profunda'']] [[Image:AllogonaPtychophora1.jpg|left|thumb|200px|''Allogona ptychophora'']]
'''''Allogona''''' is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae.
The shell of this genus is not distinguishable from the shell of ''Triodopsis'', but the male reproductive anatomy is unusual, and is characteristic for the genus. (The genus name, from Greek, means "different genitalia".)<ref name="Pilsbry1940">Pilsbry, Henry A. (1940). Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 875-892.</ref>
==Species and subspecies== Species and subspecies within the genus ''Allogona'' include: * ''Allogona profunda'' * ''Allogona profunda strontiana'' * ''Allogona ptychophora'' * ''Allogona ptychophora solida'' * ''Allogona townsendiana'' <!--Bot notice: new species go here-->
The classic treatment of this group by Pilsbry<ref name="Pilsbry1940"/> divides the genus into two subgenera: ''Allogona'' ''s.s.'' for ''A. profunda'' and its subspecies, and ''Dysmedoma'' for the other members of the taxon.
==References== {{Reflist}}
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Category:Polygyridae Category:Gastropod genera Category:Taxa named by Henry Augustus Pilsbry
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