polyspondylus, Echelus McCosker [J. E.] & Ho [H.-C.] 2015:73, Figs. 1-3 [Zootaxa 4060 (no. 1); ref. 34123] Dong-gang, Pingtung, southwestern Taiwan, South China Sea, depth ca. 200 meters. Holotype: NMMB-P 14218. Paratypes: ASIZP, CAS, NMMB-P. •Valid as Echelus polyspondylus McCosker & Ho 2015 -- (Ho et al. 2015:8 [ref. 34116], Ho et al. 2015:168 [ref. 34130], Vo & Ho 2021:77 [ref. 38193]). Current status: Valid as Echelus polyspondylus McCosker & Ho 2015. Ophichthidae: Ophichthinae. Distribution: South China Sea: Taiwan and off Nha Trang, Vietnam. Habitat: marine.