Atlanta gaudichaudi J. E. Gray 1850

Abstract

Atlanta gaudichaudi J.E. Gray, 1850 (Fig. 3I) Description. – Protoconch globose, medium high, with ~2 smooth whorls, deep suture, two teleoconch whorls, keel base yellow. Remarks. – The medium high spired protoconch without ornamentation and with few whorls, and small teleoconch characterise this species. Compared to A. plana the whorls are more inflated and the aperture more rounded and the early teleoconch whorls are much narrower. The protoconch is smooth, compared to that of A. plana having two spiral ridges. Distribution. – This species is widely distributed on the Brunei shelf, from inner (MES5, 8) middle (MES15, 16, 17, 22, 25, 27) to outer shelf (MES24, 29). It has also been found in Sarawak at the Batu Mat coral bank and at the Royal Charlotte atoll.

Authors 4

1. Han
2. J. G. M.
3. Raven Aachen

   Naturalis Biodiversity Center

   Affiliation as printed

   Research Associate, Naturalis Biodiversity Center, Leiden, The Netherlands. E-mail: han. raven @ naturalis. nl; https: // orcid. org / 0000 - 0002 - 5305 - 0795

4. David J. Marshall

   Universiti Brunei Darussalam

   Affiliation as printed

   Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Brunei Darussalam. https: // orcid. org / 0000 - 0003 - 3771 - 5950 * Corresponding author. E-mail: david. marshall @ ubd. edu. bn