thyrsoidea, Muraena Richardson [J.] 1845:111 [Ichthyology.--Part 3. The zoology of the voyage of H. M. S. Sulphur.; ref. 20575] [Canton] Guangdong Province, China, South China Sea, western Pacific. Lectotype: BMNH 2008.4.21.1. Paralectotypes: AMS I.100 (1), BMNH (1, lost or now AMS I.100). Type catalog: Böhlke & Smith 2002:150-151 [ref. 26380]. Not the same as Mureana thrysoides Richardson 1843, Pl. 49 (fig. 1) which was published first but not treated as valid; see Böhlke 1995:463 [ref. 21738]. Lectotype selected by Böhlke 1995:463 [ref. 21738]. •Valid as Siderea thrysoideus (Richardson 1845) -- (Paxton et al. 1989:133 [ref. 12442]). •Valid as Siderea thrysoidea (Richardson 1845) -- (Allen & Swainston 1988:32 [ref. 25477], Kuiter 1993:33 [ref. 23929], Chen et al. 1994:54 [ref. 22258], Böhlke 1995:463 [ref. 21738], Allen 1997:52 [ref. 23977], Kuiter 1997:30 [ref. 25488], Randall et al. 1997:42 [ref. 25919], Myers 1999:51 [ref. 23965], Allen 2000:84 [ref. 37268], Laboute & Grandperrin 2000:115 [ref. 25191], Sadovy & Cornish 2000:35 [ref. 25480], Hutchins 2001:17 [ref. 25847], Zhang et al. 2010:249 [ref. 31511], Golani & Bogorodsky 2010:59 [ref. 35264]). •Valid as Gymnothorax thyrsoideus (Richardson 1845) -- (Hatooka in Masuda et al. 1984:25 [ref. 6441], Chen et al. 1997:22 [ref. 26476], Böhlke & Randall 1999:553 [ref. 24552], Böhlke et al. 1999:1657 [ref. 24692], Compagno in Randall & Lim 2000:585 [ref. 25122], Shinohara et al. 2000:176 [ref. 25987], Randall & Earle 2000:7 [ref. 25806], Nakabo 2000:202 [ref. 25086], Böhlke & McCosker 2001:73 [ref. 25226], Nakabo 2002:202 [ref. 26001], Böhlke & Smith 2002:151 [ref. 26380], Allen & Adrim 2003:23 [ref. 26830], Myers & Donaldson 2003:611 [ref. 27495] as thyrsoidea, Randall et al. 2004:7 [ref. 27624], Randall 2005:48 [ref. 28239], Allen et al. 2006:256 [ref. 29005], Imamura 2009:20 [ref. 30434], Motomura et al. 2010:73 [ref. 31256], Fricke et al. 2011:351 [ref. 31242], Allen & Erdmann 2012:94 [ref. 31980], Smith 2012:28 [ref. 32155], Larson et al. 2013:26 [ref. 32988], Yoshida et al. 2013:21 [ref. 34464], Delrieu-Trottin et al. 2015:4 [ref. 33988], Duffy & Ahyong 2015:108 [ref. 36167], Ho et al. 2015:161 [ref. 34130], Koeda et al. 2016:8 [ref. 35333], Golani & Fricke 2018:23 [ref. 36273], Smith et al. 2019:31 [ref. 37159], Psomadakis et al. 2020:275 [ref. 37272], Ramos-Castro et al. 2020:83 [ref. 37651], Smith & Böhlke 2022:65 [ref. 39681], Murase et al. 2023:38 [ref. 40935], Vilasri et al. 2023:71 [ref. 40764] as thysoides, Allen & Erdmann 2024:104 [ref. 40796], Luo et al. 2024:8 [ref. 41630]). Current status: Valid as Gymnothorax thyrsoideus (Richardson 1845). Muraenidae: Muraeninae. Distribution: Indo-West Pacific: Maldives and India east to the Line Islands(Kiribati) and Tuamotu Islands (French Polynesia), north to Taiwan, southern Japan and Ogasawara Islands (Japan), south to northern Australia and Kermadec Islands (New Zealand). Habitat: marine.