Hyotissa is a genus of large saltwater oysters, marine bivalve mollusks in the family Gryphaeidae.MolluscaBase eds. (2021). MolluscaBase. Hyotissa Stenzel, 1971. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=204006 on 2021-03-13
Species in this genus are known as honeycomb oysters, or "foam oysters" because under magnification, their shell structure is foam-like.
Species Hyotissa haitensis (Sowerby, 1850) Hyotissa hyotis (Linnaeus, 1758) - Giant honeycomb oyster Hyotissa inermis (G. B. Sowerby II, 1871) Hyotissa mcgintyi (Harry, 1985) Hyotissa numisma (Lamarck, 1819) Hyotissa quercina (G. B. Sowerby II, 1871) Hyotissa sinensis (Gmelin, 1791) Hyotissa semiplana (de Sowerby 1825) Species brought into synonymy Hyotissa chemnitzii (Hanley, 1846): synonym of Dendostrea rosacea (Deshayes, 1836) Hyotissa quercina (G. B. Sowerby II, 1871): synonym of Hyotissa quercinus (G. B. Sowerby II, 1871) (incorrect spelling of specific epithet (quercinus is a noun in apposition)) Hyotissa thomasi (McLean, 1941): synonym of Hyotissa mcgintyi (Harry, 1985)
References
Stenzel H.B. (1971). Oysters. In, Moore, R.C. (Ed.), Treatise on Invertebrate Paleontology, pt. N, vol. 3, Mollusca 6, Bivalvia. Geological Society of America and University of Kansas Press, Lawrence. 3(6): 953–1224 Coan, E. V.; Valentich-Scott, P. (2012). Bivalve seashells of tropical West America. Marine bivalve mollusks from Baja California to northern Peru. 2 vols, 1258 pp. The original paper about the discovery of Hyotissa hyotis in the Florida Keys Paula M. Mikkelsen and Rudiger Bieler, 2008, Seashells of Southern Florida: Living Marine mollusks of the Florida Keys and adjacent regions, Princeton University Press, Princeton and Oxford,
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