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The Conus Biodiversity Website


  Conus bayani Jousseaume, 1872.

Range: India, Sri Lanka, Red Sea to Somalia; probably in Madagascar.

Description: Medium-sized to moderately large, moderately solid. Last whorl conical, outline nearly straight to slightly sigmoid. Shoulder carinate, often outwardly curved. Spire of low to moderate height, outline usually deeply concave. Larval shell of about 2.25-3 whorls, maximum diameter about 0.9 mm. First 5-8 postnuclear whorls tuberculate, usually forming a tall projecting cone above an otherwise nearly flat spire. Teleoconch sutural ramps slightly concave; first 3 ramps may have 1-3 distinct spiral grooves, later ramps with inconspicuous spiral striae. Last whorl with distinct or weak spiral ribs and ribbons at base.

Shell Morphometry
  L 45-65 mm
  RW 0.15-0.30 g/mm
  RD 0.52-0.56
  PMD 0.86-0.98
  RSH 0.07-0.17

Ground colour white, often variably tinged with violet, occasionally with yellow. Last whorl with light to dark brown axial blotches, flames and streaks and with an overlying continuous or interrupted, brown spiral band on each side of centre; subshoulder area may have traces of an additional interrupted spiral band. Spiral rows of brown dashes may extend from base to shoulder, but vary widely in number and arrangement. Larval whorls brown. Early teleoconch sutural ramps immaculate white, later ramps with brown radial markings that may cross shoulder edge. Aperture white, occasionally shaded with pale violet.

Periostracum brown, thin translucent, smooth.

Habitat and Habits: In 20- 100 m, on sand.

Discussion: C. bayani is most similar to C. capreolus, C. voluminalis, C. generalis, C. maldivus and C. monile. For comparison, see the DISCUSSIONS of those species.

Range Map Image

C. bayani range map

This section contains verbatim reproductions of the accounts of 316 species of Conus from the Indo-Pacific region, from Manual of the Living Conidae, by Röckel, Korn and Kohn (1995). They are reproduced with the kind permission of the present publisher, Conchbooks.

All plates and figures referred to in the text are also in Röckel, Korn & Kohn, 1995. Manual of the Living Conidae Vol. 1: Indo-Pacific Region.

The range maps have been modified so that each species account has it own map, rather than one map that showed the ranges of several species in the original work. This was necessary because each species account is on a separate page on the website and not confined to the order of accounts in the book.


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