Corbula fortisulcata Smith, 1879

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

Corbula fortisulcata Smith, 1879

Figs 12 J , 16 D

Corbula fortisulcata Smith, 1879 a: 819 – 820, pl. 50, fig. 23, 23 b. Type locality: the Andaman Islands. Subba Rao and Dey 2000: 286. Swennen et al. 2001: 49, 97, text-fig. 212, fig. 212. Hylleberg and Kilburn 2003: 222. Poppe 2010 b: 388, pl. 1189, figs 6, 7 a, b. Yang et al. 2017: 240, 242, fig. 899. Surakiatchai et al. 2018: table 6, pl. 5, fig. 10 a, b. Wells et al. 2021: 36.

Corbula (Corbula) fortisulcata . Robba et al. 2002: 117 – 118, pl. 20, fig. 5. Robba et al. 2003: table 3. Robba et al. 2007: 88 (appendix). Nabhitabhata 2009: 506.

Corbula (Notocorbula) cf. fortisulcata . Thach 2005: 303, pl. 91, fig. 4.

Corbula (Notocorbula) fortisulcata . Huber 2010: 467, with in-text fig. Huber 2015: C 22606.

Referred material.

CUF - NKNY - B 19 (154 shells; Figs 12 J , 16 D ).

Habitat.

Fine sand, sandy mud and muddy bottoms at intertidal to sublittoral zones at a depth from 1 to 70 m ( Huber 2015).

Distribution.

Indian Ocean; Indo-West Pacific, from Taiwan to Australia ( Huber 2015). Records of fossils from the Late Miocene in the Philippines and from the Holocene in Thailand ( Robba et al. 2002; Surakiatchai et al. 2018).

Record in Thailand.

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

Taxonomic remarks and comparisons.

This species differs from its similar species, Corbula tunicata Reeve, 1843 , by having a weaker keel on the juvenile shell part ( Swennen et al. 2001).

Potamocorbula Habe, 1955

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 16. Bivalves A Dosinia dilecta B Paratapes undulatus C Placamen lamellatum D Corbula fortisulcata E Potamocorbula sp. F, G Martesia striata G showing the shells with burrow casts along with mangrove roots H Pholas orientalis I calcareous burrows of Teredinidae indet.