* Aplysia nigrocincta von Martens, 1880 Figure 8F

Material examined.

One specimen 9 mm, SB.

Ecology.

Under a dead Fungiidae coral among rubble in shallow coral reef habitats. Depth 6 m.

Distribution.

Across the Indo-Pacific including Mozambique, Mauritius, the Philippines, Indonesia, Papua New Guinea, Vanuatu (Golestani et al. 2019), Maldives (Yonow 1994 as Aplysia fasciata), and the Red Sea (Yonow 1990 as Aplysia cf. parvula .). Here documented as a first record for Thai waters.