Antiplanes sanctiioannis

Antiplanes sanctiioannis is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids.[1]

Antiplanes sanctiioannis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Antiplanes
Species:
A. sanctiioannis
Binomial name
Antiplanes sanctiioannis
(Smith E. A., 1875)
Synonyms[1]
  • Antiplanes beringi (Aurivillius, 1885)
  • Antiplanes sadoensis Yokoyama, 1926
  • Antiplanes yessoensis Dall, 1925
  • Pleurotoma beringi Aurivillius, 1887
  • Pleurotoma sanctiioannis Smith E. A., 1875 (original combination)
  • Spirotropis (Antiplanes) perversa (Gabb, 1865)

Description

The length of the shell varies between 20 mm and 40 mm; maximum diameter 14 mm.

The fusiform shell contains 10 slightly convex whorls. The shell is clothed with a smooth, thickish, olive epidermis. The shell is covered with very narrow spiral striae and incremental flexuous stripes. The dark reddish aperture is ovate and contracted below. It measures about 2/5 of the total length. The siphonal canal is broad and slightly oblique. The narrow outer lip has a wide sinuation above the middle. The columella is twisted. The operculum is unguiform.[2]

Distribution

This marine species occurs off he Pacific coast of northern Honshu, Japan; also in the Bering Sea.

References
  1. Antiplanes sanctiioannis (Smith E. A., 1875). Retrieved through: World Register of Marine Species on 31 March 2010.
  2. E.A. Smith, A list of the Gasteropoda collected in Japanese seas by Commander H. C. St. John, R.; The Annals and magazine of natural history; zoology, botany, and geology ser.4 v.15 no. 85-90, 1875
  • Aurivillius, Carl Wilhelm Samuel. Öfversigt öfver de af Vega-Expeditionen insamlade Arktiska hafsmollusker: Placophora och Gastropoda. Vega-Expeditionens vetenskapliga iakttagelser, 1885.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295. doi:10.11646/zootaxa.682.1.1.
  • Hasegawa K. (2009) Upper bathyal gastropods of the Pacific coast of northern Honshu, Japan, chiefly collected by R/V Wakataka-maru. In: T. Fujita (ed.), Deep-sea fauna and pollutants off Pacific coast of northern Japan. National Museum of Nature and Science Monographs 39: 225–383.
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