Dentalium variabile Deshayes, 1826

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

Dentalium variabile Deshayes, 1826

Figs 12 H , 17 C

Dentalium variabile Deshayes, 1826: 352 – 353, pl. 16, fig. 30. Type locality: possibly India. Scarabino 1995: 200 – 201, fig. 16 d, e. Robba et al. 2003: tables 1, 3 – 5. Robba et al. 2004: 13, pl. 1, fig. 1. Steiner and Kabat 2004: 660. Chaiwathee et al. 2007: table 1. Robba et al. 2007: 89 (appendix). Sahlmann and Poppe 2010: 406, pl. 1198, fig. 8. Negri et al. 2014: tables 3, 4. Wells et al. 2021: 164.

Dentalium (Lentigodentalium) variabile . Dey and Ramakrishna 2007: 162, 257.

Referred material.

CUF - NKNY - O 01 (48 shells; Figs 12 H , 17 C ).

Habitat.

Mud bottoms from a depth of 10–75 m ( Robba et al. 2004).

Distribution.

Indo-West Pacific, from Japan to Reunion Island and New Caledonia. Records of fossils from the Quaternary in Thailand ( Robba et al. 2004).

Record in Thailand.

Gulf of Thailand ( Wells et al. 2021).

Taxonomic remarks and comparisons.

This species is recognised based on the descriptions and figures in Scarabino (1995) and Robba et al. (2004), specifically in having a polygonal cross-section of apex and a circular aperture. See also comprehensive taxonomic remarks in Scarabino (1995).

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 17. Bivalves and other invertebrates A Cultellus maximus B Siliqua minima C Dentalium variabile D Thalassina sp. E Fistulobalanus kondakovi F Megabalanus cf. tintinnabulum G Temnotrema siamense.