Plakobranchus ocellatus van Hasselt, 1824

Mehrotra, Rahul, A. Caballer Gutierrez, Manuel, M. Scott, Chad, Arnold, Spencer, Monchanin, Coline, Viyakarn, Voranop & Chavanich, Suchana, 2021, An updated inventory of sea slugs from Koh Tao, Thailand, with notes on their ecology and a dramatic biodiversity increase for Thai waters, ZooKeys 1042, pp. 73-188 : 73

Plakobranchus ocellatus van Hasselt, 1824 Figure 4E

Material examined.

Three specimens 25-32 mm, CB.

Ecology.

From shallow soft sediments to sandy areas along the reef edge. Rarely in deeper soft sediment habitats beyond the reef edge. Depth 0.5-11 m.

Distribution.

Plakobranchus ocellatus and P. cf. ocellatus are currently considered widespread across the Indo-Pacific including Kenya, Zanzibar, the Red Sea, Maldives, Seychelles, Réunion ( Yonow 2012), India ( Sheeja and Padma Kumar 2014), the Philippines ( Christa et al. 2012), Indonesia ( Eisenbarth et al. 2018; Yonow and Jensen 2018), Japan ( Maeda et al. 2012), Australia, Papua New Guinea ( Yonow and Jensen 2018), Guam ( Wägele et al. 2011), Vanuatu ( Krug et al. 2013), Hawaii ( Wade and Sherwood 2016), Tanzania, Madagascar, Malaysia and Palau ( Gosliner et al. 2008). Specimens considered as P. ocellatus have been previously recorded from the Andaman and Gulf waters of Thailand ( Jensen 1992; Nabhitabhata 2009).

Remarks.

Specimens from Koh Tao were recently reviewed by Mehrotra et al. (2020b).

Figures

Figure 4. A Costasiella cf. kuroshimae 6 mm B Costasiella usagi 6 mm C Limapontiidae sp. 3 mm D Plakobranchus noctisstellatus 21 mm (photograph by Pau Urgell Plaza) E Plakobranchus ocellatus 32 mm F Plakobranchus papua 27 mm G Plakobranchus papua 21 mm on Holothuria edulis H Elysia aowthai 12 mm I Elysia asbecki 15 mm J Elysia cf. marginata 70 mm K Elysia mercieri 12 mm L Elysia obtusa 9 mm.