Megabalanus cf. tintinnabulum ( Linnaeus, 1758 )

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

Megabalanus cf. tintinnabulum ( Linnaeus, 1758)

Figs 13 F , 17 F

cf. Lepas tintinnabulum Linnaeus, 1758: 668 . Type locality: Amboina, Indonesia [lectotype designation by Henry and McLaughlin (1986)].

cf. Balanus (Megabalanus) tintinnabulum tintinnabulum . Pilsbry 1916: 55 – 57, pl. 10, fig. 1, 1 e. Hiro 1939: 258, fig. 7 a – b.

cf. Balanus tintinnabulum var. tintinnabulum . Oliveira 1941: 11 – 14, text-fig. 1, pl. 2, figs. 1, 2; pl. 4, fig. 1; pl. 5, fig. 3; pl. 8, fig. 6.

cf. Balanus tintinnabulum . Holthuis and Heerebout 1972: 24 – 31, pl. 1, fig. a – e.

cf. Megabalanus tintinnabulum . Newman and Ross 1976: 68. Henry and McLaughlin 1986: 17 – 21, figs 1 e, 2 a, g, h, 3 a – c, 5 a – l. Jones et al. 2000: 282. Pitombo 2004: 275. Lozano-Cortés and Londoño-Cruz 2013: 466 – 467. Jones and Hosie 2016: 289 – 290. Pochai et al. 2017: 28 – 29, fig. 11

Referred material.

CUF - NKNY - O 06 - 2 (2 individuals; Figs 13 F , 17 F ).

Habitat.

Attached on low exposed rocky shores in littoral areas, ship bottoms, and floating pontoons ( Chan et al. 2009; Jones and Hosie 2016)

Distribution.

Cosmopolitan ( Jones and Hosie 2016).

Record in Thailand.

Andaman Sea ( Pochai et al. 2017). This is the first record of this species from Gulf of Thailand.

Taxonomic remarks and comparisons.

These specimens are tentatively identified as belonging to Megabalanus tintinnabulum based on the descriptions and figures in Henry and McLaughlin (1986), Chan et al. (2009), and Pochai et al. (2017), specifically in having large cylindrical shells with smooth parietal surfaces and without spines.

Figures

Figure 13. Size comparison of bivalves and other invertebrates found in this study A Placuna placenta B Standella pellucida C Geloina bengalensis D Anadara inaequivalvis E Pegophysema bialata F Megabalanus cf. tintinnabulum G Cultellus maximus H Lutraria complanata I Thalassina sp. J Tellinides conspicuus.

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.