Limacina lesueurii

Abstract

Limacina lesueurii (d’Orbigny, 1836) (Figs 6 Q-R) Description. – Sinistral shell, very low spire (wider than high; L 0.9 mm, W 1.1 mm), about 4 globose whorls, smooth with marked suture. Aperture wide,.columellar part straight Marked but narrow umbilicus. Translucent. Remarks. –The shell is easily recognised based on its width and very low spire. The shell has a similar shape as juveniles of L. limacina (Phipps, 1774), but that species has a shell with wider umbilicus and marked axial riblets. This species has not been recorded by Rottman (1980), but Rottmann (1976) recorded it from the Gulf of Thailand / South China Sea north of the study area. Distribution. – This species has only been found in continental slope planktonic ooze offshore Sarawak (DD15). It has not been seen anywhere on the shelf.

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