Conus janus   Hwass in Bruguiere,  1792 (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Size: 45-75 mm

Color: Ground colour white. Last whorl with 3 variably broad yellowish to dark brown or orange spiral bands, below shoulder and above and well below centre, bands occasionally with darker brown spiral lines or variably reduced. Straight or wavy, yellowish to dark brown axial streaks of variable width extend from base to shoulder and onto spire, streaks separate or confluent, continuous or interrupted, sometimes absent from spiral colour bands. Base pale yellow. Apex brown; later sutural ramps with brown to blackish brown radial markings. Aperture white or suffused with pale yellow or orange.

Medium-sized to moderately large, moderately solid to solid. Last whorl conical, occasionally ventricosely conical; outline convex adapically, less so to straight below; left side may be slightly concave at base. Shoulder subangulate. Spire of low to moderate height, outline deeply concave. Larval shell of about 3 whorls, maximum diameter about 0.7 mm. Teleoconch sutural ramps flat to slightly concave, with 2 increasing to 4-6 spiral grooves. Last whorl with a few widely spaced, axially striate grooves around basal fourth; ribbons between divided into several fine ribs towards anterior end.

Synonym (s)
Asprella janus (Hwass in Bruguiere, 1792)
Conus latifasciatus G. B. Sowerby II, 1858

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy


Literature Source(s)
  • Subba Rao, NV (2003) Indian seashells Records of the Zoological Survey of India ZSI, Kolkata (Part 1) 416 pp Available at - NCL, Pune
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • Kohn, AJ The Conus Biodiversity website Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Association francaise de conchyliologie Available at -

Page last updated on:2011-08-11

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