Ostreinae

Pacific oysters Crassostrea gigas, copyright Bas Kers.

Belongs within: Ostreoidea.
Contains: Ostrea.

The Ostreinae are a group of oysters that first appeared in the Lower Cretaceous. A number of modern species are economically significant. Crassostrea and Saccostrea species eject eggs into the water column to be fertilised and develop externally. Saccostrea species differ from Crassostrea in the presence of a deeper umbonal cavity.

Ostreinae
    |  i. s.: Praeexogyra KC02
    |           |--*P. acuminata KC02
    |           `--P. hebridica [=Ostrea hebridica] KC02
    |--+--Ostrea PC11
    |  `--Saccostrea PC11
    |       |--S. commercialis HO84
    |       |--S. echinata T-Q84
    |       |--S. malabonensis ZF84
    |       `--S. mordax T-Q84
    `--Crassostrea Sacco 1897 KC02 [incl. Saxostrea Iredale 1936 P61]
         |  i. s.: C. belcheri T-Q84
         |         C. corteziensis (Hertlein 1951) HO84
         |         C. cusseta KC02
         |         C. glomerata (Gould 1850) P61 [=Saccostrea glomerata DL77]
         |         C. kawauchidensis KC02
         |         C. rhizophorae (Guilding 1828) HO84
         |         C. rivularis ZF84
         |         C. ryosekiensis KC02
         |         C. soleniscus KC02
         |         C. subtrigonalis (Evans & Shumard 1857) HE05
         |         C. tetoriensis Komatsu, Chinzei et al. 2002 KC02
         |         C. yoshimoensis KC02
         |--*C. virginica (Gmelin 1791) P61, PC11, SS07 [=Ostrea virginica P61; incl. O. rufa C64, O. rufoides C64]
         `--+--C. sikamea PC11
            |--+--C. angulata PC11
            |  `--C. gigas (Thunberg 1793) PC11, HJ08
            `--+--C. ariakensis PC11
               |--C. hongkongensis PC11
               `--C. iredalei PC11

*Type species of generic name indicated

REFERENCES

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[DL77] Dinamani, P., & P. A. Lenz. 1977. Some aspects of spatfall of the New Zealand rock oyster during 1974. Veliger 20 (1): 17–26.

[HO84] Hedgecock, D., & N. B. Okazaki. 1984. Genetic diversity within and between populations of American oysters (Crassostrea). Malacologia 25 (2): 535–549.

[HE05] Hoganson, J. W., & J. M. Erickson. 2005. A new species of Ischyodus (Chondrichthyes: Holocephali: Callorhynchidae) from Upper Maastrichtian shallow marine facies of the Fox Hills and Hell Creek Formations, Williston Basin, North Dakota, USA. Palaeontology 48: 709–721.

[HJ08] Huisman, J. M., D. S. Jones, F. E. Wells & T. Burton. 2008. Introduced marine biota in Western Australian waters. Records of the Western Australian Museum 25 (1): 1–44.

[KC02] Komatsu, T., K. Chinzei, M. S. Zakhera & H. Matsuoka. 2002. Jurassic soft-bottom oyster Crassostrea from Japan. Palaeontology 45 (6): 1037–1048.

[PC11] Plazzi, F., A. Ceregato, M. Taviani & M. Passamonti. 2011. A molecular phylogeny of bivalve mollusks: ancient radiations and divergences as revealed by mitochondrial genes. PLoS One 6 (11): e27147.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4^th ed. Whitcombe and Tombs Limited: Christchurch.

[SS07] Struck, T. H., N. Schutt, T. Kusen, E. Hickman, C. Bleidorn, D. McHugh & K. M. Halanych. 2007. Annelid phylogeny and the status of Sipuncula and Echiura. BMC Evolutionary Biology 7: 57.

[T-Q84] Thiriot-Quiévreux, C. 1984. Les caryotypes de quelques Ostreidae et Mytilidae. Malacologia 25 (2): 465–476.

[ZF84] Zouros, E., & D. W. Foltz. 1984. Possible explanations of heterozygote deficiency in bivalve molluscs. Malacologia 25 (2): 583–591.

Last updated: 6 November 2021.