* Atagema intecta (Kelaart, 1859) Figure 12A

Material examined.

One specimen 25 mm, CB.

Ecology.

Coral reefs. Depth 5-10 m.

Distribution.

Widespread Indo-Pacific including the Red Sea (Yonow 2008), Mozambique ( Tibiriçá et al. 2017), Sri Lanka (Kelaart 1859), Indonesia (Debelius 1996), Australia (Nimbs and Smith 2016), Japan, Papua New Guinea, and Hawaii (Gosliner et al. 2008). Here representing a first record for Thai waters.