Conus kikaiensis (Pilsbry, 1904)

Descrizione.

Shell long and narrow, the diameter about one-third the length, the elevated and slightly concave-sided spire one-fourth the length. Whorls remaining 10, nearly flat and steeply sloping, the smooth peripheral angle projecting a little above the suture, the surface above it sculptured with 3 to 5 low, unequal spiral cords, and fine, arcuate growth-lines. Lateral outlines of the last whorl nearly straight. Sculpture of regular, rather strong, narrow spiral grooves, which are somewhat striate across, weaker above. There are 23-25 of these grooves above the convex siphonal fasciole, which is indistinctly finely striate spirally. In some specimens the flat intervals between the grooves are divided in the middle by a smaller groove ⁽¹⁾.

Length 40-41, diam. 13 mm. 5

Kikai, Osumi; fossil in a Pliocene (?) deposit. Types No. 85. 948, A. N.S. P., from No. 1,553 of Mr. Hirase’s collection ⁽¹⁾.

This species is not unlike C. dormitor and C. aculeiformis in general shape, but it differs essentially from both in the sculpture of the spire ⁽¹⁾.

The outer lip is a good deal damaged in both of the specimens received ⁽¹⁾.

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Conus kikaiensis Kikai, Osumi Pliocene	Conus kikaiensis^(2) Lower Byoritz; west end of Fukki, Shinchik. Conus aculeiformis Reeve 1844, Nomura 1935 Asprella australis kikaiensis (Pilsbry, 1904) Kuroda, 1955

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Bibliografia

· (1) - Pilsbry, H. A. (1904). New Japanese marine Mollusca: Gastropoda. Proceedings of the Academy of Natural Sciences of Philadelphia. 56: 3-32 [10 February], 33-37 [18 February]

· (2) - Matajiro YOKOYAMA'S “TERTIARY · FOSSILS FROM VARIOUS LOCALITIES IN JAPAN Part IV.” Revised by Jiro M AKIYAMA