''Williamia'' is a
genus of small
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s or false
limpet
Limpets are a group of aquatic snails that exhibit a conical shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning the various groups called "limpets" descended indep ...
s,
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
pulmonate
Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...
s in the
family Siphonariidae, the false (air-breathing) limpets.
[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]
Their development is similar to other Siphonariids.
[Collin, Rachel. 2000. The development of three heterobranch mollusks from California, USA. The Nautilus, 114(3): 117-119.]
Species
Species within the genus ''Williamia'' include:
* ''
Williamia eximia''
(Nevill in G. & H. Nevill, 1869)
* ''
Williamia gussoni
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
Costa, 1829
* ''
Williamia krebsii
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
( Mörch, 1877)
* ''
Williamia magellanica
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
Dall, 1927
* ''
Williamia peltoides
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
(Carpenter
Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, Shipbuilding, ships, timber bridges, concrete formwork, etc. ...
, 1864) - shield false limpet
* ''
Williamia radiata
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
(Pease, 1860)
** ''
Williamia radiata nutata
''Williamia radiata nutata'' is a subspecies of small sea snail or saltwater limpet with a lung, a marine pulmonate gastropod mollusc in the family Siphonariidae
Siphonariidae, also known as false limpets, are a taxonomic family of small to ...
''
Headley Headley may refer to:
Places
* Headley, Basingstoke and Deane in the civil parish of Ashford Hill with Headley
* Headley, East Hampshire
** Headley Grange, Hampshire
* Headley, Surrey
Other uses
* Headley (surname)
* Baron Headley, a title in t ...
, 1908
* ''
Williamia subspiralis
''Williamia'' is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.Bouchet, P.; Gofas, S. (2011). Williamia Monterosato, 1884. Accessed through: World ...
''
(Carpenter, 1864)
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''
(Headley, 1908): synonym of ''Williamia radiata nutata''
(Headley, 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
References
*
Discover Life* Marshall B.A. (1981) ''The genus Williamia in the western Pacific (Mollusca: Siphonariidae)''. New Zealand Journal of Zoology 8: 487-492
Siphonariidae
{{Siphonariidae-stub