Belomitra pourtalesii

Belomitra pourtalesii
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily: Buccinoidea
Family: Buccinidae
Genus: Belomitra
Species: B. pourtalesii
Binomial name
Belomitra pourtalesii
(Dall, 1881)
Synonyms
  • Drillia exsculpta R.B. Watson, 1882
  • Mangelia exsculpta R.B. Watson, 1881
  • Mangelia pourtalesii (Dall, 1881)
  • Mangilia areia Dall, 1927
  • Pleurotoma exsculpta Watson, 1882
  • Pleurotoma (Mangilia) pourtalesii Dall, 1881 (original combination)

Belomitra pourtalesii is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.[1]

Description

The length of the shell varies from 12 mm to 30 mm.

(Original description) The slender, dull, light brown shell is eight-whorled. The protoconch is large, bubble-shaped, smooth and forms a blunt apex. The subsequent whorls are furnished with numerous (on the whorl next to the last 20, and on the last 27) narrow, little-raised, rounded riblets with somewhat wider interspaces, becoming less distinct and more crowded in the adult near the aperture. The posterior terminations of these riblets are waved, forming an obscure notch-band, each being slightly enlarged close by the suture and also on the anterior side of the band, thus forming two rows of indistinct nodulations, of which the sutural row is more clearly defined than the other. The riblets extend from suture to suture, and near its anterior third become obsolete on the body whorl. Here eight or ten rather indistinct revolving threads exist, becoming more distinct toward the end of the siphonal canal, separated from each other by shallow grooves. These pass round the column into the aperture. The siphonal canal is short and wide. The aperture is simple, with thin margins. The notch is rather indistinct in the adult.[2]

Distribution

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

References

  1. ↑ Belomitra pourtalesii (Dall, 1881).  Retrieved through: World Register of Marine Species on 17 April 2010.
  2. ↑ Dall, W. H. 1881. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico, and in the Caribbean Sea, 1877-79, by the United States Coast Survey Steamer 'Blake,'. Bulletin of the Museum of Comparative Zoology 9: 33-144 This article incorporates text from this source, which is in the public domain.
  • Bouchet P. & Warén A. (1986 ["1985"]) Mollusca Gastropoda: Taxonomical notes on tropical deep water Buccinidae with descriptions of new taxa. Mémoires du Muséum National d'Histoire Naturelle, A, 133: 457-517

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