Antiplanes sanctiioannis explained
Antiplanes sanctiioannis is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids.
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.[1]
Distribution
This marine species occurs off he Pacific coast of northern Honshu, Japan; also in the Bering Sea.
References
- 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) . Zootaxa . 682 . 1–1295 . 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.
External links
Notes and References
- https://www.biodiversitylibrary.org/item/78384#page/430/mode/1up 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
