Notogibbula lehmanni

Notogibbula lehmanni
Drawing showing two views of a shell of Notogibbula lehmanni
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Trochidae
Genus: Notogibbula
Species: N. lehmanni
Binomial name
Notogibbula lehmanni
(Menke, 1843)
Synonyms
  • Gibbula pulchra A. Adams, 1853
  • Trochus lehmanni Philippi
  • Trochus rigata Philippi, 1851
  • Turbo lehmanni Menke, 1843 (original combination)

Notogibbula lehmanni, common name the many-coloured top shell, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top shells.[1]

The fossil record of this species goes back to the Early Pleistocene.

Description

The size of the shell varies between 6 mm and 9 mm. The umbilicate shell is rather thin and has an orbicular-conoid shape. The six whorls are separated by impressed sutures. The first whorl is eroded, the following are angular, flattened above, gradate, strikingly painted, spirally lirate. The delicate lirae number about 12 on the penultimate whorl. The body whorl is dilated, biangular, ornamented with transverse white and reddish-violet interrupted lines, like flexuous rays. At the suture and periphery there are zones formed of violet-brown spots alternating with white or yellowish ones. The base of the shell is convex, with 15 to 16 concentric lirae. The coloration is white and reddish tessellated. The aperture subovate and has thin margins. The columella is arcuate, subnodose inside below. The; white umbilical tract is funnel-shaped.[2]

Distribution

This marine species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania, Victoria and Western Australia

References

  1. Marshall, B. (2014). Notogibbula lehmanni (Menke, 1843). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719235 on 2014-06-08
  2. H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
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