Lissospira ornata

Lissospira ornata is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.[1]

Lissospira ornata
Original drawing of a shell of Lissospira ornata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Skeneidae
Genus: Lissospira
Species:
L. ornata
Binomial name
Lissospira ornata
(A. E. Verrill, 1884)
Synonyms
  • Cyclostrema dalli var. ornatum A. E. Verrill, 1884
  • Cyclostrema ornatum A. E. Verrill, 1884
  • Ganesa ornata A. E. Verrill, 1884

Description

The diameter of the shell attains 2.6 mm. This species agrees in form and condition of the umbilical region with the Lissospira dalli. But it is very peculiarly marked on the base by thin, impressed lines, running obliquely and crossing the concentric spiral lines at a large angle, so as to produce a sort of "herring-bone" pattern as shown in the figure.[2]

Distribution

This species occurs in the Atlantic Ocean off North Carolina, USA, at a depth of 1542 m.

References
  1. Rosenberg, G. (2012). Lissospira ornata (A. E. Verrill, 1884). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532980 on 2012-09-01
  2. Verrill, A. E. 1884. Second catalogue of Mollusca recently added to the fauna of the New England coast and the adjacent parts of the Atlantic, consisting mostly of deep-sea species, with notes on others previously recorded. Transactions of the Connecticut Academy of Arts and Sciences 6: 139-294, pls. 28-32 (described as Cyclostrema dalli var. ornatum)
  • Verrill, A. E. 1884. Second catalogue of Mollusca recently added to the fauna of the New England coast and the adjacent parts of the Atlantic, consisting mostly of deep-sea species, with notes on others previously recorded. Transactions of the Connecticut Academy of Arts and Sciences 6: 139-294, pls. 28-32.
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