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The Conus Biodiversity Website

CATALOGUE OF RECENT AND FOSSIL CONUS

  Conus (Embrikena) stupella Kuroda, 1956.

Range: Japan to Taiwan, Philippines and Philippine Sea (Kita-Koho area).

Description: Moderately large to large, solid. Last whorl usually pyrifonn, outline usually sigmoid. Shoulder subangulate to rounded. Spire of moderate height or high, stepped, outline straight. Maximum diameter of larval shell 0.9-1 mm. First 3-10 postnuclear whorls tuberculate, late whorls undulate or smooth. Teleoconch sutural ramps slightly concave or almost flat, with 2 increasing to 4 spiral grooves. Last whorl with a few weak spiral ribs at base.

Shell Morphometry
  L 54-98 mm
  RW 0.28-0.48 g/mm
     (L 54-73 mm)
  RD 0.64-0.74
  PMD 0.80-0.89
  RSH 0.20-0.30

Ground colour white suffused with reddish violet. Last whorl with widely spaced spiral rows of brown spots. Some specimens also with sparse light brown flecks, spirally aligned above centre. Teleoconch sutural ramps with brown spots at outer margins, between tubercles in early whorls. Aperture light violet.

Habitat and Habits: Below 100 m.

Discussion: C. stupella can be easily confused with C. stupa. The latter species generally attains larger size, its spire outline is concave, its late teleconch sutural ramps are deeply concave and usually lack spiral grooves, and it has spiral rows of dots rather than spots on last whorl. We only provisionally consider C. stupella a distinct species.

Range Map Image

C. stupella 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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