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, 1929Opisthosiphon apertum Torre & Henderson, 1920Opisthosiphon bacillum Torre & Bartsch, 1941Opisthosiphon banaoense Torre & Henderson, 1921Opisthosiphon bermudezi Torre & Bartsch, 1941Opisthosiphon berryi Clapp, 1919Opisthosiphon bioscai Torre & Henderson, 1920Opisthosiphon caguanense Torre & Bartsch, 1941Opisthosiphon caroli Aguayo, 1932Opisthosiphon claudens Torre & Bartsch, 1941Opisthosiphon cucullatum Torre & Bartsch, 1941Opisthosiphon cunaguae Welch, 1929Opisthosiphon detectum Torre & Henderson, 1920Opisthosiphon deviatum Torre & Bartsch, 1941Opisthosiphon echinatum (Gundlach in Pfeiffer, 1857)Opisthosiphon evanidum Torre & Henderson, 1921Opisthosiphon greenfieldi Torre & Bartsch, 1941Opisthosiphon guanajaense Torre & Bartsch, 1941Opisthosiphon insularum Torre & Bartsch, 1941Opisthosiphon judasense Torre & Henderson, 1920Opisthosiphon lamellosum Torre & Bartsch, 1941Opisthosiphon litorale Torre & Bartsch, 1941Opisthosiphon manatiense Torre & Bartsch, 1941Opisthosiphon moreletianum (Petit, 1850)Opisthosiphon obtectum Torre & Henderson, 1920Opisthosiphon obturatum Torre & Henderson, 1920Opisthosiphon palmeri Torre & Bartsch, 1941Opisthosiphon paredonense Torre & Henderson, 1920Opisthosiphon plateroense Torre & Bartsch, 1941Opisthosiphon plicatum Torre & Bartsch, 1941Opisthosiphon poeyi Torre & Bartsch, 1941Opisthosiphon prominulum Torre & Bartsch, 1941Opisthosiphon protactum Torre & Henderson, 1920Opisthosiphon pupoides (Morelet, 1849)Opisthosiphon quesadai Aguayo, 1932Opisthosiphon quinti Torre & Bartsch, 1941Opisthosiphon sabinalense Sánchez Roig, 1949Opisthosiphon sainzi Aguayo, 1934Opisthosiphon salustii Torre & Henderson, 1920Opisthosiphon sanchezi Torre & Bartsch, 1941Opisthosiphon sculptum (Gundlach in Pfeiffer, 1857)Opisthosiphon sosai Torre & Bartsch, 1941Opisthosiphon subobtectum Torre & Bartsch, 1941Opisthosiphon subobturatum Torre & Henderson, 1920Opisthosiphon tersum Torre & Henderson, 1921Opisthosiphon torrei Welch, 1929Opisthosiphon turiguanoense Torre & Bartsch, 1941Opistosiphon conicus Aguayo & Sánchez Roig, 1949