chi, Xenisthmus Gill [A. C.] & Hoese [D. F.] 2004:242, Fig. 1 [Records of the Australian Museum v. 56 (no. 2); ref. 27774] Clerke Reef, 2 kilometers south of Bedwell Island, 17°18'S, 119°20'E, Rowley Shoals, Timor Sea. Holotype: WAM P.28030-033. Paratypes: WAM P.28030-041 (1). Type catalog: Moore et al. 2008:49 [ref. 30117]. •Valid as Xenisthmus chi Gill & Hoese 2004 -- (Hoese 2006:1700 [ref. 28998], Parenti 2021:58 [ref. 38603]). Current status: Valid as Xenisthmus chi Gill & Hoese 2004. Xenisthmidae. Distribution: Eastern Indian Ocean: Timor Sea (Western Australia). Habitat: marine.