Opisthosiphon is a genus of land snails with an operculum, terrestrial gastropod mollusks in the family Pomatiidae.
The genus Opisthosiphon has been described by American malacologist William Healey Dall in 1905. Dall's type description reads as follows:
Species within the genus Opisthosiphon include:
Opisthosiphon bahamense (Sh.) - type species, as Chondropoma bahamense Sh.
Opisthosiphon aguilerianum (Arango, 1876)
Opisthosiphon andrewsi Welch, 1929
Opisthosiphon apertum Torre & Henderson, 1920
Opisthosiphon bacillum Torre & Bartsch, 1941
Opisthosiphon banaoense Torre & Henderson, 1921
Opisthosiphon bermudezi Torre & Bartsch, 1941
Opisthosiphon berryi Clapp, 1919
Opisthosiphon bioscai Torre & Henderson, 1920
Opisthosiphon caguanense Torre & Bartsch, 1941
Opisthosiphon caroli Aguayo, 1932
Opisthosiphon claudens Torre & Bartsch, 1941
Opisthosiphon cucullatum Torre & Bartsch, 1941
Opisthosiphon cunaguae Welch, 1929
Opisthosiphon detectum Torre & Henderson, 1920
Opisthosiphon deviatum Torre & Bartsch, 1941
Opisthosiphon echinatum (Gundlach in Pfeiffer, 1857)
Opisthosiphon evanidum Torre & Henderson, 1921
Opisthosiphon greenfieldi Torre & Bartsch, 1941
Opisthosiphon guanajaense Torre & Bartsch, 1941
Opisthosiphon insularum Torre & Bartsch, 1941
Opisthosiphon judasense Torre & Henderson, 1920
Opisthosiphon lamellosum Torre & Bartsch, 1941
Opisthosiphon litorale Torre & Bartsch, 1941
Opisthosiphon manatiense Torre & Bartsch, 1941
Opisthosiphon moreletianum (Petit, 1850)
Opisthosiphon obtectum Torre & Henderson, 1920
Opisthosiphon obturatum Torre & Henderson, 1920
Opisthosiphon palmeri Torre & Bartsch, 1941
Opisthosiphon paredonense Torre & Henderson, 1920
Opisthosiphon plateroense Torre & Bartsch, 1941
Opisthosiphon plicatum Torre & Bartsch, 1941
Opisthosiphon poeyi Torre & Bartsch, 1941
Opisthosiphon prominulum Torre & Bartsch, 1941
Opisthosiphon protactum Torre & Henderson, 1920
Opisthosiphon pupoides (Morelet, 1849)
Opisthosiphon quesadai Aguayo, 1932
Opisthosiphon quinti Torre & Bartsch, 1941
Opisthosiphon sabinalense Sánchez Roig, 1949
Opisthosiphon sainzi Aguayo, 1934
Opisthosiphon salustii Torre & Henderson, 1920
Opisthosiphon sanchezi Torre & Bartsch, 1941
Opisthosiphon sculptum (Gundlach in Pfeiffer, 1857)
Opisthosiphon sosai Torre & Bartsch, 1941
Opisthosiphon subobtectum Torre & Bartsch, 1941
Opisthosiphon subobturatum Torre & Henderson, 1920
Opisthosiphon tersum Torre & Henderson, 1921
Opisthosiphon torrei Welch, 1929
Opisthosiphon turiguanoense Torre & Bartsch, 1941
Opistosiphon conicus Aguayo & Sánchez Roig, 1949
