Phyllidia coelestis Bergh, 1905 Figure 14I

Material examined.

Three specimens 25-35 mm, GR.

Ecology.

Abundant in coral reef habitats. Depth 3-30 m

Distribution.

Widespread in the Indo-Pacific including Mozambique ( Tibiriçá et al. 2017), South Africa (Brunckhorst 1993), Madagascar, Seychelles (Yonow 2012), Tanzania (Edmunds 1972), Sri Lanka (Yonow 1984), Chagos Islands (Yonow et al. 2002), India (Apte 2009), the Philippines, Japan, Papua New Guinea (Gosliner et al. 2008), Australia (Nimbs and Smith 2016), China (Lin 1990), Indonesia (Yonow 2011), and known from both Andaman and Gulf waters of Thailand (Brunckhorst 1993; Chavanich et al. 2013).