Eulithidium affine

Eulithidium affine, common name the polka-dot pheasant or the spotted pheasant, is a species of sea snail, a marine gastropod mollusk in the family Phasianellidae.[2]

Eulithidium affine
Two views of a shell of Eulithidium affine
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Vetigastropoda
Superfamily:
Phasianelloidea
Family:
Phasianellidae
Genus:
Eulithidium
Species:
E. affine
Binomial name
Eulithidium affine
(C. B. Adams, 1850) [1]
Synonyms
  • Eulithidium affine affine (C. B. Adams, 1850)
  • Eulithidium affine cruentum Robertson, 1958
  • Phasianella affinis C. B. Adams, 1850
  • Phasianella brevis C. B. Adams, 1850
  • Phasianella concinna C. B. Adams, 1850
  • Phasianella umbilicatum auct. non d'Orbigny, 1842
  • Tricolia adamsi (Philippi, 1853)
  • Tricolia affine C. B. Adams, 1850
  • Tricolia affinis cruenta Robertson, 1958
  • Tricolia cruenta Robertson, 1958
  • Turbo umbilicata auct. non d'Orbigny, 1842

Description

The height of the shell reaches 6.2 mm. The elongate shell has a pointed ovate shape. It is thin, smooth, and shining. The spire is conic. It contains about 5 rather convex whorls, separated by well impressed sutures. The acute apex is rose colored. The oval aperture is oblique. The outer lip is thin and translucent. The columella has a white callus which is somewhat distended at the slightly impressed and grooved subperforate or imperforate umbilical region. The color of the shell is white, yellow or pale rose, more or less clouded longitudinally with rose, orange or brown, sometimes only with subsutural and peripheral series of short flammules, the entire surface closely and regularly punctate with pink or orange, and white.[3]

Distribution

This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles; in the Atlantic Ocean off Brazil.

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References
  1. Adams, C. B. 1850. Descriptions of supposed new species of marine shells, which inhabit Jamaica. Contributions to Conchology 4: 56-68
  2. Eulithidium affine (C. B. Adams, 1850). Retrieved through: World Register of Marine Species on 10 March 2013.
  3. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia (described as Phasianella affinis)
  • Robertson, R. 1958. The family Phasianellidae in the Western Atlantic. Johnsonia 3: 245–283.
  • Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26 page(s): 59
  • 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
  • "Eulithidium affinis affinis". Gastropods.com. Retrieved 16 January 2019.
  • Gastropods.com: Eulithidium affinis affinis cruenta (f)
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