''Kanamarua adonis'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

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 ...

, a marine

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 ...

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 ...

Colubrariidae Colubrariidae are a taxonomic family of medium-sized sea snails, marine gastropod mollusks in the superfamily Buccinoidea. Bouchet, P. (2010). Colubrariidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accesse ...

.MolluscaBase eds. (2022). MolluscaBase. Kanamarua adonis (Dall, 1919). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=491046 on 2022-11-22

Description

(Original description as ''Conus (Aulacofusus) adonis'') The small shell measures 37 mm. It is bulimiform, thin, whitish with a pale olive periostracum. The shell contains about six

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). In nature File:Photograph and axial plane floral diagra ...

s, exclusive of the (lost)

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called " ...

. It has a very narrowly channeled suture and moderately rounded whorls. The spiral

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 ...

consists of narrow equal flat threads (about three to a millimeter) with very narrow interspaces over the whole shell, though the interspaces are a little wider on the apical whorls and the spirals under-run there by thread-like axial sculpture, giving a somev/hat punctate appearance under magnification. 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 ...

is elongate and rather narrow. 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 thickened, not reflected, with traces of liration near the inside margin. The body and the columella contain a continuous layer of enamel. 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 short and wide. It has no siphonal fascicle.Dall, W. H. (1919). Descriptions of new species of Mollusca from the North Pacific Ocean in the collection of the United States National Museum. Proceedings of the United States National Museum. 56 (2295): 293-371
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Distribution

This marine species occurs in Suruga Gulf,

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

References

* Fraussen K. & Lamy D. (2008). Revision of the genus Kanamarua Kuroda, 1951 (Gastropoda: Colubrariidae) with the description of two new species. Novapex 9(4): 129-140

External links

Bouchet, P. & Warén, A. (1986). Mollusca Gastropoda: Taxonomical notes on tropical deep water Buccinidae with descriptions of new taxa. in: Forest, J. (Ed.) Résultats des Campagnes MUSORSTOM I et II Philippines (1976, 1980). Tome 2. Mémoires du Muséum national d'Histoire naturelle. Série A, Zoologie. 133: 457-499
Colubrariidae Gastropods described in 1919 {{Colubrariidae-stub