''Borsonella'' 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 ...

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 * ...

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 ...

Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.o ...

Description

(Original description) The shell has a small, blunt nucleus of one or two

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 ...

s. The

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

is chiefly spiral, feeble, except for one or two spiral carinae, sometimes with a few small riblets or beads on the principal carina. 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, smooth or vermiculate. 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 wide and very short. The outer lip is sharp, simple, arcuate. The columella is solid, with one strong, nearly horizontal plait continuous upon the whole axis. This axis is impervious, the operculum absent. Type Borsonia dalli There is never more than one plait in ''Borsonella'' ; in ''

Cordieria ''Cordieria'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.Bouchet, P. (2015). Cordieria. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=tax ...

'' Rouault, 1848, as restricted by Cossmann, there are never less than two. In '' Rouaultia'' the anal sulcus is narrow, sharp, and situated at the shoulder in the peripheral carina. Both Cordieria and typical ''

Borsonia ''Borsonia'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae. Description The fusiform shell has medium to small size. It has an elevated spire and a well-marked siphonal canal. The whorls of the spire are usually a ...

'' have a long and slender canal and the general aspect of ''

Gemmula ''Gemmula'', common name the gem turrids, is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. These snails have been recorded as fossils from the Paleocene to the Quaternary (from 66.043 to 0.012 Ma). Fossils ...

'' Weinkauff, 1875, while ''Borsonella'' resembles an ''

Antiplanes ''Antiplanes'' is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae,. Description (Original description) These deep-water and abyssal forms are smooth except for incremental lines and sometimes fine spiral striae. T ...

'' Dall, 1902 with a strong plait on the proximal part of the columella.

Species

Species within the genus ''Borsonella'' include: * '' Borsonella abrupta'' McLean & Poorman, 1971 * ''

Borsonella agassizii ''Borsonella agassizii'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. The snail was named after Louis_Agassiz. Description The length of the shell attains 23 mm. (Original description) The shell is bico ...

'' (Dall, 1908) * '' Borsonella barbarensis'' Dall, 1919 * '' Borsonella bartschi'' (Arnold, 1903) * ''

Borsonella callicesta ''Borsonella callicesta'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae. Description The small shell is white, covered with an olivaceous periostracum, and with four whorls exclusive of an apical whorl or two ( ...

'' (Dall, 1902) * '' Borsonella coronadoi'' (Dall, 1908) * '' Borsonella diegensis'' (Dall, 1908) * '' Borsonella erosina'' (Dall, 1908) * '' Borsonella galapagana'' McLean & Poorman, 1971 * '' Borsonella hooveri'' (Arnold, 1903) * '' Borsonella merriami'' (Arnold, 1903) * '' Borsonella omphale'' Dall, 1919 * '' Borsonella pinosensis'' Bartsch, 1944 * † '' Borsonella sinelirata'' Marwick, 1931 ;Species brought into synonymy: * ''Borsonella angelena'' Hanna, 1924: synonym of ''Borsonella omphale'' Dall, 1919 * ''Borsonella civitella'' Dall, 1919: synonym of ''Borsonella bartschi'' (Arnold, 1903) * ''Borsonella nicoli'' Dall, 1919: synonym of ''Borsonella bartschi'' (Arnold, 1903) * ''Borsonella nychia'' Dall, 1919: synonym of ''Borsonella coronadoi'' (Dall, 1908) * ''Borsonella rhodope'' Dall, 1919: synonym of '' Rhodopetoma diaulax'' (Dall, 1908)

References

External links

Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308.
{{Taxonbar, from=Q3171853 Gastropod genera