Goniobranchus fidelis (Kelaart, 1858) Figure 10B

Material examined.

Two specimens 6-18 mm CB; one specimen 15 mm, SB; one specimen 12 mm, SD.

Ecology.

Coral reef habitats throughout the region. Depth 2-25 m.

Distribution.

Widespread throughout the Indo-Pacific including Mozambique ( Tibiriçá et al. 2017), Maldives (Yonow 1994), India (Ramakrishna et al. 2010), Myanmar (Sanpanich and Duangdee 2019), Madagascar, Red Sea, Philippines, Japan, Australia, New Caledonia (Gosliner et al. 2008), and Indonesia (Yonow 2001). Known from both Andaman and Gulf waters of Thailand (Chavanich et al. 2013).