Some large Saurenchelys specimens collected from Daxi, Yilan, NE Taiwan, and Da Nang, Vietnam, by bottom trawl at depths of 100-200 m, are described as Saurenchelys gigas new species. They differ from all known adult Saurenchelys species by predorsal length 40.9-46.8, head length 36.8-39.3in % of preanal length, 38-40 preanal vertebrae, 63-70 precaudal vertebrae, 38-42 preanal lateral-line pore...

Quassiremus polyclitellum, n. sp., described from three specimens line-fished at island outliers in 35-58 m represents the first record of Quassiremus Jordan & Davis, 1891, for the Indo-West Pacific. It has regularly spaced, mid-brown to orange, vertically rectangular saddles of pigment along body, tail longer than preanal length, and 166-168 vertebrae. It thus differs from East Pacific Q. noth...

A single specimen of Muraenichthys gymnopterus (Bleeker, 1853) was collected from a sandy intertidal flat having rocks and dead corals in the estuarine area Nagura Amparu, Ishigaki-jima Island, southern Japan, October 2020. This collection constitutes first record M. Japanese waters. In this study, diagnostic characters between hattae Jordan Snyder, 1901 are provided, based on our morphological...