''Aphanitoma'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

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 current power * Marine debris * Marine energy * Marine habitats * Mari ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

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.org/ ...

.Bouchet, P.; Gofas, S. (2015). Aphanitoma Bellardi, 1875. In: MolluscaBase (2015). Accessed through: World Register of Marine * † At http://www.marinespecies.org/aphia.php?p=taxdetails&id=181080 on 2016-02-08

Description

The shell has a

fusiform Fusiform (from Latin ''fusus'' ‘spindle’) means having a spindle (textiles), spindle-like shape that is wide in the middle and tapers at both ends. It is similar to the lemon (geometry), lemon-shape, but often implies a focal broadening of a ...

shape. The sinus is scarcely apparent. The biplicate

columella Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire. His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...

is nearly straight. The canal is rather short and slightly curved. (Original description in Latin) The shell exhibits a fusiform shape. The

body whorl The body whorl is part of the morphology (biology), morphology of the gastropod shell, shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk ...

is slightly depressed anteriorly. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is essentially linear, exhibiting minimal sinuosity. In adult and intact specimens, it displays a barely perceptible emargination near the posterior suture. The

is nearly straight, showing two prominent folds that descend along its central portion. The posterior fold is more pronounced than the anterior. Both folds diminish in size within the

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

. 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 i ...

is notably short and exhibits a sinistral curvature.

Species

Species within the genus ''Aphanitoma'' include: * † '' Aphanitoma alterans'' F. Nordsieck, 1972 * † '' Aphanitoma aplicata'' Vera-Peláez, 2002 * † '' Aphanitoma arctata'' Bellardi, 1877 * † ''

Aphanitoma bellardii ''Aphanitoma'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Borsoniidae.Bouchet, P.; Gofas, S. (2015). Aphanitoma Bellardi, 1875. In: MolluscaBase (2015). Accessed through: World Register of ...

'' G. Seguenza, 1880 * † '' Aphanitoma breviata'' Bellardi, 1877 * † '' Aphanitoma fransi'' A. W. Janssen, 1972 * † '' Aphanitoma imperati'' (Scacchi, 1835) * † '' Aphanitoma labellum'' (Bellardi & Michelotti, 1840) * '' Aphanitoma locardi'' Bavay, 1906 * † '' Aphanitoma marginata'' (F. Nordsieck, 1972) * '' Aphanitoma mariottinii'' Smriglio, Rufini & Martin Perez, 2001 * † '' Aphanitoma marqueti'' Ceulemans, Van Dingenen & Landau, 2018 * † '' Aphanitoma pecchiolii'' Bellardi, 1877 * † '' Aphanitoma pliocenica'' Vera-Peláez, 2002 * † '' Aphanitoma pluriplicata'' Bellardi, 1877 * † '' Aphanitoma roesti'' Landau, Van Dingenen & Ceulemans, 2020 * † '' Aphanitoma ronaldi'' A. W. Janssen, 1972 * † '' Aphanitoma targioniana'' (D'Ancona, 1873) : a little known species from the bathyal malacofauna of the

upper Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.33 to 2.58

from

Romagna Romagna () is an Italian historical region that approximately corresponds to the south-eastern portion of present-day Emilia-Romagna, in northern Italy. Etymology The name ''Romagna'' originates from the Latin name ''Romania'', which originally ...

(N-Italy) Cesare Tabanelli, III CONTRIBUTO ALLA CONOSCENZA"DELLA MALACOFAUNA BATIALE DBL PLIOCENE DI ROMAGNA: ACLIS BARTOLOMEAE N. SP; QUAD. STUDI NAL ROMAGNA, T: 7-15, MAGGIO 1997 rssN 1 12s-6r8
/ref> ;Synonyms: * † ''Aphanitoma elegans'' (D'Ancona, 1872): synonym of † ''Aphanitoma pliocenica'' Vera-Peláez, 2002 (senior synonym of ''A. pliocenica'' but invalid junior homonym of '' Turbinella elegans'') * † ''Aphanitoma protoconcha'' F. Nordsieck, 1972: synonym of † ''Aphanitoma alterans'' F. Nordsieck, 1972 * † ''Aphanitoma quadricincta'' Cossmann, 1883: synonym of † '' Endiatoma quadricincta'' (Cossmann, 1883) (superseded combination)

References

External links

Bouchet, P.; Kantor, Y. I.; Sysoev, A.; Puillandre, N. (2011). ''A new operational classification of the Conoidea.'' Journal of Molluscan Studies. 77, 273-308
{{Taxonbar, from=Q9625780