Estellacar olivacea ( Reeve, 1844 )

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, ZooKeys 1202, pp. 1-110 : 1-110

Estellacar olivacea ( Reeve, 1844)

Figs 12 F , 14 B

Arca olivacea Reeve, 1844 : Arca , pl. 16, sp. 113. Type locality: San Nicolas, island of Zebu [the Philippines] (found in sandy mud at the depth of four fathoms).

Estellacar olivacea . Poutiers 1998 a: 160, with in-text figs. Swennen et al. 2001: 44, 68, fig. 42. Robba et al. 2002: 61, pl. 2, fig. 13. Hylleberg and Kilburn 2003: 153. Robba et al. 2003: table 2. Vongpanich and Matsukuma 2004: 41, pl. 2, figs. r, s. Robba et al. 2007: 84 (appendix). Nabhitabhata 2009: 297. Huber 2010: 146, with in-text fig. Negri et al. 2014: table 3. Huber 2015: C 3594. BEDO 2017 a: 42, with in-text fig. Wells et al. 2021: 55.

Striarca olivacea . Printrakoon et al. 2008: table 1.

Referred material.

CUF - NKNY - B 18 (16 L + 14 R shells; Figs 12 F , 14 B ).

Habitat.

In mud and sand from intertidal zones, often near mangrove forests, down to 20 m depth ( Poutiers 1998 a; Robba et al. 2002).

Distribution.

India; Indo-West Pacific, from South China to the Philippines ( Huber 2015). Records of fossils from the Holocene in Thailand ( Robba et al. 2002).

Record in Thailand.

Gulf of Thailand and Andaman Sea ( Wells et al. 2021).

Taxonomic remarks and comparisons.

This species differs from its similar species Estellacar galactodes (Benson, 1842) by having a higher number of coarser riblets ( Robba et al. 2002).

Noetiella Thiele, 1931

Figures

Figure 12. Size comparison of bivalves, scaphopod and other invertebrates found in this study A Tegillarca nodifera B Volachlamys singaporina C Tegillarca granosa D Noetiella pectunculiformis E Magallana cf. gigas F Estellacar olivacea G Anadara indica H Dentalium variabile I Siliqua minima J Corbula fortisulcata K Fistulobalanus kondakovi L Placamen lamellatum M Martesia striata N Potamocorbula sp. O Jupiteria puellata P Saccella mauritiana Q Paratapes undulatus R Dosinia dilecta S Joannisiella oblonga T Temnotrema siamense U Pholas orientalis.

Figure 14. Bivalves A Tegillarca nodifera B Estellacar olivacea C Noetiella pectunculiformis D Magallana cf. gigas E Placuna placenta F Volachlamys singaporina.