Volachlamys singaporina (Sowerby II, 1842) Figs 12 B, 14 F Pecten singaporinus Sowerby II, 1842: 74, pl. 13, fig. 55; pl. 14, fig. 71. Type locality: Singapore. Lynge 1909: 155. Volachlamys singaporina. Roussy 1991: 21. Poutiers 1998 a: 210, with in-text figs. Aungtonya et al. 1999: 376. Swennen et al. 2001: 45, 74, fig. 70. Gemert 2003: 108. Hylleberg and Kilburn 2003: 169. Dharma 2005: 248, pl. 99, fig. 13 a – e; 364, pl. 147, fig. 3 a, b. Thach 2005: 263, pl. 80, fig. 13. Nabhitabhata 2009: 342. Huber 2010: 203, with in-text fig. Huber 2015: C 6118. BEDO 2017 a: 236, with in-text fig. Yang et al. 2017: 172, fig. 667. Dijkstra and Beu 2018: 296 – 298, figs 98, 100 j, l, 101 d, e. Wells et al. 2021: 67. Referred material. CUF - NKNY - B 07 (32 L + 32 R shells; Figs 12 B, 14 F). Habitat. Byssally attached under coral boulders and rocks, on sand and sandy mud in intertidal zones down to 22 m depth (Huber 2015). Distribution. Indo-West Pacific, from China to Australia (Huber 2015; Dijkstra and Beu 2018). Records of fossils from the Middle to Late Pliocene in Indonesia (Dharma 2005). Record in Thailand. Gulf of Thailand and Andaman Sea (Wells et al. 2021). Taxonomic remarks and comparisons. This species differs from its similar species, Volachlamys tranquebaria (Gmelin, 1791) and V. hirasei (Bavay, 1904), by having square and well-defined 18–24 ribs with wider interspaces between the ribs (Dharma 2005; Dijkstra and Beu 2018). See also comprehensive taxonomic remarks in Dijkstra and Beu (2018) Superorder Heteroconchia Gray, 1854 Order Lucinida Gray, 1854 Superfamily Lucinoidea J. Fleming, 1828

Published as part of Jirapatrasilp, Parin, Cuny, Gilles, Kocsis, László, Sutcharit, Chirasak, Ngamnisai, Nom, Charoentitirat, Thasinee, Kumpitak, Satapat & Suraprasit, Kantapon, 2024, Mid-Holocene marine faunas from the Bangkok Clay deposits in Nakhon Nayok, the Central Plain of Thailand, pp. 1-110 in ZooKeys 1202 on pages 1-110, DOI: 10.3897/zookeys.1202.119389