Very special thanks for the first two photos of Paragobiodon kasaii to Dr. Dr. Jiro Sakaue from Palau, Pacific Ocean!.
Dr. Sakaue has taken his photos at Iriomote Island, the Ryukyu Islands, Japan and Ngemlis Reef, Ngis Island, Palau on the branches of Pocillopora eydouxi Edwards und Haime, 1860 (Suzuki und Shibu-Kawa, 2004).
Paragobiodon kasaii occurs on coral reefs of bays at the reef edge, or on the reef slope at depths of 2–16 m. Individuals live as commensals on the branches of species of coral of the genus Pocillopora, almost Pocillopora eydouxi Edwards and Haime, 1860 (Suzuki and Shibu-kawa, 2004).
Similar species: Paragobiodon lacunicolus (Kendall & Goldsborough, 1911)
Paragobiodon kasaii , a New Gobiid Fish from Japan and Palau