Species that contain: Xenisthmus and clarus [ 3 ] records

clara, Hetereleotris Jordan [D. S.] & Seale [A.] 1906:392, Pl. 36 (fig. 2) [Bulletin of the Bureau of Fisheries v. 25 (for 1905); ref. 2497] Pago Pago, American Samoa. Holotype: USNM 51773. Paratypes: CAS-SU 8711 (1). Type catalog: Böhlke 1953:106 [ref. 12291]. Type information: Koumans 1940:124 [ref. 2676]. •Valid as Xenisthmus clarus (Jordan & Seale 1906) -- (Akihito in Masuda et al. 1984:241 [ref. 6441], Gill in Randall & Lim 2000:641 [ref. 25122], Nakabo 2000:1153 [ref. 25182], Gill 2001:3606 [ref. 26295], Hutchins 2001:44 [ref. 25847], Nakabo 2002:1153 [ref. 26193], Gill & Hoese 2004:242 [ref. 27774], Randall 2005:560 [ref. 28239], Hoese 2006:1700 [ref. 28998], Parenti 2021:58 [ref. 38603]). Current status: Valid as Xenisthmus clarus (Jordan & Seale 1906). Xenisthmidae. Distribution: Eastern Indian Ocean, western Pacific: Ryukyu Islands (Japan); northern Australia; Samoa. Habitat: marine.

penicillum, Gignimentum Whitley [G. P.] 1933:89, Fig. 4 [Records of the Australian Museum v. 19 (no. 1); ref. 4677] Vanuatu. Holotype (unique): AMS IA.833. Type catalog: Koumans 1940:170 [ref. 2676]. •Synonym of Xenisthmus clarus (Jordan & Seale 1906) -- (D. Hoese/H.K. Larson data). •Mention -- (Gill & Hoese 2004:242 [ref. 27774]). Current status: Synonym of Xenisthmus clarus (Jordan & Seale 1906). Xenisthmidae. Habitat: marine.

proriger, Xenisthmus Snyder [J. O.] 1908:105 [Proceedings of the United States National Museum v. 35 (no. 1635); ref. 4150] Tidepool at Naha, Okinawa Island, Ryukyu Islands, Japan. Holotype: USNM 62242. Paratypes: CAS-SU 21108 (3, one without head). Type catalog: Koumans 1940:127, 145 [ref. 2676], Böhlke 1953:119 [ref. 12291]. •Synonym of Xenisthmus clarus (Jordan & Seale 1906) -- (Hoese 2006:1700 [ref. 28998]). •Mention -- (Gill & Hoese 2004:242 [ref. 27774]). Current status: Synonym of Xenisthmus clarus (Jordan & Seale 1906). Xenisthmidae. Habitat: marine.