Megastomia conoidea

Megastomia conoidea
Drawing of Megastomia conoidea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Genus: Megastomia
Species: M. conoidea
Binomial name
Megastomia conoidea
(Brocchi, 1884)
Synonyms
  • Eulima monodon Requien, 1848
  • Odostomia conoidea (Brocchi, 1814)
  • Odostomia var. australis Jeffreys, J.G., 1867
  • Odostomia eulimoides Jeffreys, J.G., 1847
  • Odostomia nagli Brusina, S., 1865
  • Odostomia plica Cantraine, F.J., 1842
  • Odostomia sicula Philippi, R.A., 1851
  • Odostomia sulcifera Smith, E.A., 1872
  • Odostomia tenuis Jeffreys, 1884
  • Odostomia (Megastomia) boteroi Schander, C., 1994
  • Odostomia (Megastomia) corimbensis Schander, C., 1994
  • Odostomia (Megastomia) gilsoni Dautzenberg, Ph., 1912
  • Odostomia (Megastomia) polita Bivona-Bernardi, A., 1832
  • Odostomia (Odostomia) plicata Fleming, C.A.
  • Ovatella polita Bivona Ant., 1832 (dubious synonym)
  • Rissoa polita Scacchi, 1836
  • Turbo conoideus Brocchi, 1814

Megastomia conoidea is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[1] [2]

Description

The shell size varies between 2.5 mm and 7 mm. The white shell is solid, polished and with microscopic growthlines. The periphery is more or less distinctly keeled or angulated, with an impressed spiral line. There are eight, nearly flat whorls. The umbilicus is small and deep. The columellar tooth is strong and prominent. The interior of the outer lip is ridged, terminating in small tubercles within the mouth. [3]

(Description of Odostomia sicula) The white shell is solid,and, polished. Its length measures 6.25 mm. The eight whorls of the teleoconch are nearly flat. They are marked with microscopic growth lines. The periphery of the shell is more or less distinctly keeled or angulated. The shell shows an impressed spiral line. The small umbilicus goes deep. The columellar tooth is strong and prominent. The interior of the lip is ridged, terminating in small tubercles within the aperture.

G.W. Tryon (1889) considered it a synonym of Odostomia conoidea Brocchi. [4]

Distribution

This species occurs in the following locations:[1]

References

  1. 1 2 Bouchet, P.; Gofas, S. (2015). Megastomia conoidea (Brocchi, 1814). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224401 on 2015-12-14
  2. Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.
  3. G.W. Tryon, Manual of Conchology vol. VIII p. 349-350; 1889
  4. G.W. Tryon, Manual of Conchology vol. VIII, p. 349-350; 1889
External identifiers for Megastomia conoidea
Encyclopedia of Life 4812899
ITIS 75553
NCBI 177487
WoRMS 224401
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