Noetiella pectunculiformis ( Dunker, 1866 )

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

Noetiella pectunculiformis ( Dunker, 1866)

Figs 12 D , 14 C

Barbatia pectunculiformis Dunker, 1866: 88 – 89, pl. 28, figs 4 – 6. Type locality: Borneo.

Arca (Fossularca) pectunculiformis . Lynge 1909: 115.

Striarca pectunculiformis . Tantanasiriwong 1979: 4. Morris and Purchon 1981: 323. Nateewathana et al. 1981: 63. Aungtonya et al. 1999: 373.

Scelidionarca pectunculiformis . Robba et al. 2002: 61, pl. 2, fig. 14 q, b. Robba et al. 2007: 84 (appendix). Nabhitabhata 2009: 297.

Noetiella pectunculiformis . Huber 2010: 146, with in-text fig. Huber 2015: C 3575. BEDO 2017 a: 43, with in-text fig. Kantharajan et al. 2017: table 1, fig. 2 - 11. Wells et al. 2021: 55.

Referred material.

CUF - NKNY - B 27 (4 L + 4 R shells; Figs 12 D , 14 C ).

Habitat.

In soft clay, mud or sand, in subtidal zones from a depth of 2–43 m, and in mangrove forests ( Huber 2015; Kantharajan et al. 2017).

Distribution.

India Ocean; Indo-West Pacific, from South China to Indonesia ( Huber 2015; Kantharajan et al. 2017). 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 is recognised based on the descriptions and figures in Robba et al. (2002) and Huber (2010), specifically in having a roundly trapezoidal and inequilateral shell shape with the sculpture of dense, faint radials, and coarse growth markings.

Order Ostreida Férussac, 1822

Superfamily Ostreoidea Rafinesque, 1815

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.