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Conus aculeiformis (Reeve, 1844)
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Descrizione.
The Hayasaka collection of Byoritzu fossils in the U.S. Geological Survey contains several specimens of this species showing a wide range in the texture, number and spacing of the incised spiral lines. The spirals are always made semipunctate by thin partitions crossing them, the partitions being continuous with the growth lines on the flat bands between the incised grooves. The early whorls have small nodes along the shoulder which remain visible just above the suture.
Conus d'orbignyi ( Andouin ) which occurs in the Byoritzu beds also has semipunctate incised spirals but its shoulder nodes are coarser and persist on the adult whorls.
Nomura regarded three fossils from Java which Martin (1906) identified as living species, C. insculptus Kiener, C. longurionis Kiener, and C. vimineus Reeve as synonyms of C. aculeiformis. They are certainly very closely related if not identical .
One of Martin's species, C. menengtenganus, probably also should be included in this category.
Distribution:
Miocene,? Java, (Yonabaru clay member) Okinawa;
Pliocene,? Java;? Sumatra,? Timor,? Ceram, (Byoritzu beds) Formosa, Japan;
Recent, Indian Ocean, Australia , Philippines.
Localities: Yonabaru clay member, 17447 (figured).
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Bibliografia
(1) - Tertiary and Quaternary Gastropoda of Okinawa By F. STEARNS MACNEIL (1960)
(3) - Reeve, L. A., 1844. Monograph of the genus Conus. Conchologia Iconica, 1
