''Antiplanes'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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, marine

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 ...

mollusk 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 e ...

s in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Pseudomelatomidae Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005). In 1995 Kantor elevated the subfamily Pseudomelatomina ...

Description

(Original description) These deep-water and abyssal forms are smooth except for incremental lines and sometimes fine spiral striae. The

periostracum The periostracum ( ) is a thin, organic coating (or "skin") that is the outermost layer of the shell of many shelled animals, including molluscs and brachiopods. Among molluscs, it is primarily seen in snails and clams, i.e. in gastropods and ...

is conspicuous and the shell disposed to be chalky. The

anal sulcus The anal sulcus, also called the anal sinus or anal canal, in Gastropods is a notch, a shelly tube at the top of the aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and fo ...

is shallow and more or less rounded, usually situated some distance from the suture, but not quite on the periphery of the

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

. The

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

is rather wide and long and often a little recurved. The

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ...

is unarmed. There are both dextral and sinistral species.

Species

Species within the genus ''Antiplanes'' include: * '' Antiplanes abarbarea'' Dall, 1919 * '' Antiplanes abyssalis'' Kantor & Sysoev, 1991 * '' Antiplanes amphitrite'' Dall, 1919 * '' Antiplanes antigone'' (Dall, 1919) * '' Antiplanes briseis'' Dall, 1919 * '' Antiplanes bulimoides'' Dall, 1919 * '' Antiplanes catalinae'' (Raymond, 1904) * '' Antiplanes delicatus'' Okutani & Iwahori, 1992: * '' Antiplanes dendritoplicata'' Kantor & Sysoev, 1991 * '' Antiplanes diomedea'' Bartsch, 1944 * '' Antiplanes habei'' Kantor & Sysoev, 1991 * '' Antiplanes isaotakii'' (Habe, 1958) * '' Antiplanes kurilensis'' Kantor & Sysoev, 1991 * '' Antiplanes litus'' Dall, 1919 * '' Antiplanes motojimai'' (Habe, 1958) * '' Antiplanes obesus'' Ozaki, 1958 * '' Antiplanes obliquiplicata'' Kantor & Sysoev, 1991 * '' Antiplanes profundicola'' Bartsch, 1944 * '' Antiplanes sanctiioannis'' (Smith E. A., 1875) * '' Antiplanes spirinae'' Kantor & Sysoev, 1991 * '' Antiplanes thalaea'' (Dall, 1902) * '' Antiplanes vinosa'' (Dall, 1874) * † '' Antiplanes voyi'' (Gabb, 1866) * '' Antiplanes yukiae'' (Shikama, 1962) ;Species brought into synonymy: * ''Antiplanes agamedea'' Dall, 1919: synonym of '' Spirotropis agamedea'' (Dall, 1919) * ''Antiplanes amycus'' Dall, 1919: synonym of '' Leucosyrinx kantori'' McLean, 1995 * ''Antiplanes beringi'' (Aurivillius, 1885): synonym of '' Antiplanes sanctiioannis'' (Smith E. A., 1875) * ''Antiplanes catalinae contraria'' Yokoyama, 1926: synonym of ''Antiplanes vinosa'' (Dall, 1874) * ''Antiplanes contraria'' (Yokoyama, 1926): synonym of ''Antiplanes vinosa'' (Dall, 1874) * ''Antiplanes diaulax'' (Dall, 1908): synonym of '' Rhodopetoma diaulax'' (Dall, 1908) * ''Antiplanes diomedia'' ic synonym of ''Antiplanes diomedea'' Bartsch, 1944 * ''Antiplanes gabbi'' Kantor & Sysoev, 1991: synonym of ''Antiplanes catalinae'' (Raymond, 1904) * ''Antiplanes hyperia'' Dall, 1919: synonym of '' Pseudotaranis hyperia'' (Dall, 1919) * ''Antiplanes kamchatica'' Dall, 1919: synonym of ''Antiplanes vinosa'' (Dall, 1874) * ''Antiplanes kawamurai'' (Habe, 1958): synonym of ''Antiplanes obesus'' Ozaki, 1958 * ''Antiplanes major'' Bartsch, 1944: synonym of ''Antiplanes catalinae'' (Raymond, 1904) * ''Antiplanes perversus'' (Gabb, 1865): synonym of ''Antiplanes catalinae'' (Raymond, 1904) * ''Antiplanes piona'' Dall, 1902: synonym of ''Antiplanes sanctiioannis'' (Smith, 1875) * ''Antiplanes rotula'' Dall, 1921: synonym of ''Antiplanes thalaea'' (Dall, 1902) * ''Antiplanes sadoensis'' Yokoyama, 1926: synonym of ''Antiplanes sanctiioannis'' (Smith, 1875) * ''Antiplanes santarosana'' (Dall, 1902): synonym of ''Antiplanes thalaea'' (Dall, 1902) * ''Antiplanes voyi'' sensu Abbott, 1974: synonym of ''Antiplanes catalinae'' (Raymond, 1904) * ''Antiplanes willetti'' Berry, 1953: synonym of ''Antiplanes thalaea'' (Dall, 1902) * ''Antiplanes yessoensis'' Dall, 1925: synonym of ''Antiplanes sanctiioannis'' (Smith E. A., 1875)

References

* McLean J.H. (1996). ''The Prosobranchia. In: Taxonomic Atlas of the Benthic Fauna of the Santa Maria Basin and Western Santa Barbara Channel. The Mollusca Part 2'' – The Gastropoda. Santa Barbara Museum of Natural History. volume 9: 1-160 * Shikama T. (1977). ''Descriptions of new and noteworthy Gastropoda from western Pacific and Indian Oceans''. Science Reports of the Yokohama National University, section II (Geology). 24: 1-23, 5 pls

External links

Bartsch, P, Some turrid mollusks of Monterey Bay and vicinity; Proceedings of the Biological Society of Washington, v. 57 p. 57-68
*
Bouchet, P.; Kantor, Y. I.; Sysoev, A.; Puillandre, N. (2011). ''A new operational classification of the Conoidea (Gastropoda).'' Journal of Molluscan Studies. 77(3): 273-308
{{Taxonbar, from=Q3171882 Pseudomelatomidae Gastropod genera