Calliostoma jujubinum

Calliostoma jujubinum, common name the jujube top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.[2]

Calliostoma jujubinum
Drawing with an apertural view of a shell of Calliostoma jujubinum
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Vetigastropoda
Superfamily:
Trochoidea
Family:
Calliostomatidae
Subfamily:
Calliostomatinae
Genus:
Calliostoma
Species:
C. jujubinum
Binomial name
Calliostoma jujubinum
(Gmelin, 1791) [1]
Synonyms
  • Calliostoma perspectivum Koch, F.C.L. in Philippi, R.A., 1843
  • Calliostoma prejujubinum Olsson, A.A. & A. Harbison, 1953 (fossil)
  • Eutrochus alternatus Sowerby III, 1873
  • Trochus jujubinus Gmelin, 1791 (original combination)
  • Trochus lunatus Röding, 1798
  • Trochus perspectivus Koch, 1843
  • Calliostoma rawsoni Dall, W.H., 1889
  • Zizyphinus jujubinum (Gmelin, 1791)

Description

The size of the shell varies between 13 mm and 34 mm. The solid, heavy shell has a pyramidal-conic shape. It has a narrowly perforate funnel-shaped umbilicus. Its color is chestnut-brown, purple-brown on the upper whorls. It is marked with narrow, curved, rather widely separated longitudinal white streaks. The base of the shell is minutely dotted with white. The sculpture consists of numerous little-elevated spiral beaded lirulae, with many spiral striae between them. The base is flat and has coarser concentric subgranulose lirae, becoming finer toward the outer margin. The spire elevated. There are about 10 whorls, concave above, swollen and projecting at the periphery, the last obtusely angled. The oblique aperture is quadrate. The outer lip is beveled, strongly 5 or 6 lirate within. The basal lip is straight, very thick, obtuse, crenulate, lirate inside. The columella is arcuate, ending below in a point or tooth. The umbilicus is white within. The young specimens have a minute smooth, rounded, rather elevated dextral nucleus, and bicingulate periphery.[3]

Distribution

This species occurs in the Gulf of Mexico, the Caribbean Sea and off the Lesser Antilles; in the Atlantic Ocean from North Carolina to Southern Brazil at depths between 0 m and 192 m.

gollark: `pairs` `ipairs`
gollark: `setmetatable` `getmetatable` `rawset` `rawget`
gollark: Your sandbox is missing some stuff.
gollark: ***OKAY I CAN HELP***
gollark: It's a terrible explanation.

References
  1. Gmelin, J. F. 1791. Systema naturae per regna tria naturae. Editio decima tertia. Systema Naturae, 13th ed., vol. 1(6): 3021–3910. Lipsiae
  2. Calliostoma jujubinum (Gmelin, 1791). Retrieved through: World Register of Marine Species on 22 April 2010.
  3. Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
  • Röding, P. F. 1798. Museum Boltenianum. viii + 199 pp. Hamburg.
  • Philippi, R. A. 1843. Trochus. Abbildungen und Beschreibungen neuer oder wenig gekannter Conchylien 1(2–3): 31–34, 65–69, pl. 1–2.
  • Dall, W. H. 1889. Reports on the results of dredgings, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877–78) and in the Caribbean Sea (1879–80), by the U. S. Coast Survey Steamer 'Blake,'. Bulletin of the Museum of Comparative Zoology 18: 1–492, pls. 10–40.
  • Olsson, A. A. and A. Harbison. 1953. Pliocene Mollusca of Southern Florida, with special reference to those from North Saint Petersburg. Monographs of the Academy of Natural Sciences of Philadelphia 8: vii + 459, 65 pls.
  • Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
  • "Calliostoma jujubinum". Gastropods.com. Retrieved 15 January 2019.
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