Tricolia petiti

Tricolia petiti is a species of sea snail, a marine gastropod mollusk in the family Phasianellidae.[2]

Tricolia petiti
Drawing with two varieties of a shell of Tricolia petiti
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Vetigastropoda
Superfamily:
Phasianelloidea
Family:
Phasianellidae
Genus:
Tricolia
Species:
T. petiti
Binomial name
Tricolia petiti
(Craven, 1882) [1]
Synonyms

Phasianella petiti Craven, 1882 (original combination)

Description

The shell grows to a height of 7 mm. The shining shell is very small. It has a very narrow rim and is microscopically spirally striate. Its color is corneous with irregular spots of reddish brown, except immediately below the sutures, where they are replaced by a band of alternate oblique white, cream and reddish flammules. There are about four, very rapidly increasing whorls. The apex is obtuse. The subcircular aperture is colored inside, the same as on the outside. The white columella is a little thickened. The suture is deep. There is sometimes a band of large blotches on the periphery.[3]

Distribution

This species occurs in the Atlantic Ocean off Gabon, Angola and the mouth of the Congo River.

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References
  1. Craven. Bull. Soc. Mal. Belg. xvii, t. 11, f. 3, 169
  2. Tricolia petiti (Craven, 1882). Retrieved through: World Register of Marine Species on 19 April 2010.
  3. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
  • Bernard, P.A. (Ed.) (1984). Coquillages du Gabon [Shells of Gabon]. Pierre A. Bernard: Libreville, Gabon. 140, 75 plates pp.
  • Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. [Shells and molluscs of Angola]. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp
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