''Caesia'' is a genus of

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 ...

s in the subfamily Nassariinae of 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 ...

Nassariidae The Nassariidae, Nassa mud snails (US), or dog whelks (UK) are a taxonomic family of small to medium-sized snails, mostly marine gastropod mollusks in the clade Neogastropoda. These snails have rounded shells with a high spire, an oval ap ...

.MolluscaBase eds. (2021). MolluscaBase. Caesia H. Adams & A. Adams, 1853. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=560395 on 2021-09-08

Description

(Described as ''Zaphon'') The shell is bucciniform. The

spire A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spire ...

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

s rugose. The inner

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 ...

shows a spreading, corrugated callus. The outer lip is denticulate, lirate internally, not variced externally. Adams, H. & Adams, A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst. Vol. 1: xl + 484 pp.; vol. 2: 661 pp.; vol. 3: 138 pls
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Species

* '' Caesia fossata'' (A. Gould, 1850) * '' Caesia perpinguis'' (Hinds, 1844) * '' Caesia rhinetes'' (S. S. Berry, 1953) ; Synonyms: * ''Caesia japonica'' (A. Adams, 1852): synonym of '' Nassarius praematuratus'' (Kuroda & Habe in Habe, 1960)

References

External links

Conrad, T. A. (1856). Descriptions of three new genera; twenty-three new species middle Tertiary fossils from California and one from Texas. Proceedings of the Academy of Natural Sciences of Philadelphia. 8: 312-336

Adams, H. & Adams, A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst.

Adams, A. (1870). On some proboscidiferous gasteropods which inhabit the seas of Japan. Annals and Magazine of Natural History,. Series 4, 5: 418–430.

Galindo, L. A.; Puillandre, N.; Utge, J.; Lozouet, P.; Bouchet, P. (2016). The phylogeny and systematics of the Nassariidae revisited (Gastropoda, Buccinoidea). Molecular Phylogenetics and Evolution. 99: 337-353
Nassariidae {{Nassariidae-stub