Williamia

For the plant genus, see Phyllanthus

Williamia
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata
Superfamily:	Siphonarioidea
Family:	Siphonariidae
Genus:	Williamia Monterosato, 1884
Type species
Ancylus gussoni O.G. Costa, 1829
Species
See text
Synonyms^[1]
Allerya Mörch, 1877 (Invalid: suppressed by ICZN Opinion 1410) Brondelia Bourguignat, 1862 (Invalid: suppressed by ICZN Opinion 1410) Parascutum Cossmann, 1890 Roya Iredale, 1912 Scutulum Monterosato, 1877 (Invalid: junior homonym of Scutulum Tournouer, 1869 [Echinodermata]; Williamia and Parascutum are replacement names)

Williamia is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets. ^[1]

Their development is similar to other Siphonariids^[2]

Species

Species within the genus Williamia include:

Species brought into synonymy:

Williamia galapagana Dall : synonym of Williamia peltoides (Carpenter, 1864)
Williamia gussonii (O. G. Costa, 1829): synonym of Williamia gussoni (Costa O. G., 1829)
Williamia japonica Habe, 1962: synonym of Williamia radiata (Pease, 1860)
Williamia kermadecensis (Iredale, 1912): synonym of Williamia radiata (Pease, 1860)
Williamia nutata (Hedley, 1908): synonym of Williamia radiata nutata (Hedley, 1908)
Williamia oblongata (Yokoyama, 1926): synonym of Siphonacmea oblongata (Yokoyama, 1926)
Williamia polynesica Rehder, 1980: synonym of Williamia radiata (Pease, 1860)
Williamia radiata Kuroda & Habe, in Habe, 1961: synonym of Williamia radiata (Pease, 1860)
Williamia tomlini (Robson, 1913): synonym of Aporemodon tomlini Robson, 1913

1 2 Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138490 on 2011-02-08
↑ Collin, Rachel. 2000. The development of three heterobranch mollusks from California, USA. The Nautilus, 114(3): 117-119.

"Williamia". Integrated Taxonomic Information System.
Discover Life
Marshall B.A. (1981) The genus Williamia in the western Pacific (Mollusca: Siphonariidae). New Zealand Journal of Zoology 8: 487-492

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