Mitromorpha hewitti

Mitromorpha hewitti is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.[1]

Mitromorpha hewitti
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Mitromorphidae
Genus: Mitromorpha
Species:
M. hewitti
Binomial name
Mitromorpha hewitti
(Tomlin, 1921)
Synonyms[1]
  • Antimitra hewitti Tomlin, 1921
  • Mitromorpha (Mitrolumna) hewitti (Tomlin, 1921)

This species was originally named Mitromorpha volva var. G.B. Sowerby III by E. Smith in the Journal of Malacology, xi, p. 31, pi. ii, f. 13, but Smith didn't describe it as distinct. J.R. Tomlin described it as Antimitra (?) hewitti but also indicated that the correct usage of the generic name Mitromorpha is pointed out in Proceedings of the Malacological Society of London, vol. xii, p. 32S,

Description

The length of the shell attains 7 mm, its diameter 2.75 mm.

(Original description) The ribs are broader, flatter, further apart than in Mitromorpha volva, and are more widely spaced on the upper half of the basal whorl than elsewhere. There are four ribs on the penultimate whorl, and sixteen to seventeen on the body whorl, as against five to seven and at least twenty-one respectively in volva. The interstices show distinct axial sculpture, consisting of fine raised lines very close together, with numerous more prominent ones occurring very irregularly. All the ribs on the last three whorls are more or less evidently and regularly spotted with brown. This is particularly noticeable on the peripheral rib, which is broader than the rest and traceable on the two whorls preceding the body whorl.[2]

Distribution

This marine species was found off Port Alfred, South Africa.

References
  1. Mitromorpha hewitti (Tomlin, 1921). Retrieved through: World Register of Marine Species on 29 March 2010.
  2. Journal of conchology. v. 15–16 (1916–1922)
  • Tomlin, JR le B. "Six new marine shells from South Africa." Journal of Conchology 16.7 (1921): 215–217.
  • Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 156
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
  • "Mitromorpha (Mitrolumna) hewitti". Gastropods.com. Retrieved 16 January 2019.
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