Agathistoma fasciatum

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Agathistoma fasciatum
Tegula fasciata 001.jpg
Drawing with four views of a shell of Agathistoma fasciatum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Tegulidae
Genus: Agathistoma
Species:
A. fasciatum
Binomial name
Agathistoma fasciatum
(Born, 1778) [1]
Synonyms
  • Adeorbis pictusTenison Woods, 1877
  • Chlorostoma fasciataBorn, 1778
  • Trochus carneolusLamarck, 1822
  • Tegula fasciata(Born, 1778) ·
  • Trochus fasciatusBorn, 1778
  • Trochus occultusPhilippi, 1845
  • Turbo dentatusGmelin, 1791

Agathistoma fasciatum (known commonly as the Smooth Atlantic Tegula) is a species of sea snail, a marine gastropod mollusk in the family Tegulidae. [2]

Contents

Description

A. fasciatum is slightly smaller than T. lividomaculata , which is 58 to 78 in (16 to 22 mm) high, and somewhat wider than that. [3] Its thick, solid shell is depressed and is umbilicate. The six whorls are smooth, convex and rounded. The apex is acute. The upper whorls are nearly flat, the last flattened beneath the suture. The base of the shell is rounded, concave around the umbilicus. The aperture is oblique. The outer lip is finely crenulated within. The columella is short, arcuate, with a white callus above and two transverse tubercles at its base. The color of the shell is reddish or pale tan to dark brown, usually with irregular, axially distributed splotches of white, and fine spiral lines of alternating reddish and white spots or streaks. A pale band is often present at the periphery of the last whorl. [3] [4]

Distribution

A. fasciatum often lives under rocks at low tide level, and is abundantly found throughout southern Florida, the Caribbean Sea and the West Indies (Atlantic Ocean) [3] at depths between 0 m and 90 m.

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References

  1. Born, I. 1778. Index Rerum Naturalium Musei Caesarei Vindobonensis. Pars I. Testacea. [xlii] + 458 + [82] pp., 1 pl. Offficina Krausiana: Wien
  2. Tegula fasciata (Born, 1778) . Retrieved through: World Register of Marine Species  on 20 April 2010.
  3. 1 2 3 Rehder, Harald A (1981). National Audubon Society Field Guide to North American Seashells . New York: Alfred A. Knopf. p.  384. ISBN   0-394-51913-2.
  4. Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Chlorostoma fasciatus)