Agathotoma ordinaria

Agathotoma ordinaria is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1] [2]

Agathotoma ordinaria
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Agathotoma
Species:
A. ordinaria
Binomial name
Agathotoma ordinaria
(Smith, E.A., 1882)
Synonyms
  • Mangelia ordinaria (E.A. Smith, 1882)
  • Pleurotoma (Mangilia) ordinaria E.A. Smith, 1882 (original combination)

Description

The length of the shell attains 7.5 mm, its diameter 2.5 mm.

The turreted shell has an oblong shape and contains 7 whorls, with the first two being smooth and convex. The subsequent whorls are also convex and feature 10-11 ribs that subtly blend into the background and are adorned with spiral lirae. The aperture is narrow, measuring about 2/5 of the total length of the shell. The white outer lip is thickened (incrassate) and slightly sinuate at the top. The siphonal canal is short and narrow, while the columella is simple. [1]

Distribution

This species occurs in the Pacific Ocean from Peru to Northern Chile.

References
  1. Edgar. A. Smith, Diagnoses of New Species of Pleurotomidae in the British Museum; Annals and Magazine of Natural History, ser. v," vol. xiv, 1884, p. 321
  2. Agathotoma ordinaria(Smith, E.A., 1882). 24 June 2024. Retrieved through: World Register of Marine Species.
  • Louie Marincovich, Jr. Intertidal Mollusks of IQUIQUE, Chile; Natural History Museum Los Angeles County Science Bulletin 16 February 20, 1973
  • Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295.
  • "Agathotoma ordinaria". Gastropods.com. Retrieved 15 January 2019.
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