Menestho is a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks.
The original description by Möller (1842) is brief and in Latin: "Animal pede elongato, angusto; ore simplici, membrana linguali destituto; tentaculis brevioribus, crassiusculis, oculos perparvos ad basin internum ferentibus. Operculo pauco-spirato. Testa conico-turrita."
Little is known about the biology of the members of this genus. As is true of most members of the Pyramidellidae sensu lato, they are most likely to be ectoparasites.
Species within the genus Menestho include:
Menestho acuminata Preston, 1908
Menestho akkeshiensis Habe, 1958
Menestho albula (Fabricius, 1780) (Type species) (as Turbo albulus)
Menestho beermanae Jong & Coomans, 1988
Menestho cingulitissima Nomura, 1937
Menestho exarata A. Adams, 1861
Menestho felix (Dall & Bartsch, 1906)
Menestho hypocurta (Dall & Bartsch, 1909)
Menestho kesennumensis Nomura, 1938
Menestho kwantoensis Nomura, 1938
Menestho sexsulcata Nomura, 1936
Menestho shataii Nomura, 1936
Menestho suavis Nomura, 1936
Menestho truncatula (Odhner, 1915)
Species brought into synonymy
Menestho amilda Dall & Bartsch, 1909: synonym of Odostomia amilda Dall & Bartsch, 1909
Menestho beauforti Jacot, A.P., 1921: synonym of Boonea impressa (Say, T., 1822)
Menestho chilensis Dall & Bartsch, 1909: synonym of Odostomia chilensis Dall & Bartsch, 1909
Menestho cingulittissima [sic] : synonym of Menestho cingulitissima Nomura, 1937
Menestho diaphana (Jeffreys, 1848): synonym of Ondina diaphana (Jeffreys, 1848)
Menestho divisa (J. Adams, 1797): synonym of Ondina divisa (Adams J., 1797)
Menestho dollfusi Locard, 1886: synonym of Euparthenia humboldti (Risso, 1826)
Menestho exarata A. Adams, 1861: synonym of Menestho exaratissima (Dall & Bartsch, 1906)
Menestho grijalvae (Baker, Hanna & Strong, 1928): synonym of Odostomia grijalvae Baker, Hanna & Strong, 1928
Menestho humboldti (Risso, 1826): synonym of Euparthenia humboldti (Risso, 1826)
Menestho morseana Bartsch, 1909: synonym of Menestho albula (Fabricius, 1780)
Menestho tenuicula F. Nordsieck, 1972: synonym of Odostomia erjaveciana Brusina, 1869
