Grammatonotus Gilbert [C. H.] 1905:618 Masc. Grammatonotus laysanus Gilbert 1905. Type by original designation (also monotypic). •Valid as Grammatonotus Gilbert 1905 -- (Katayama et al. 1980 [ref. 5548], Katayama et al. 1982 [ref. 5397], Katayama in Masuda et al. 1984:138 [ref. 6441], Johnson 1984:465 [ref. 9681], Anderson 1999:2554 [ref. 24814], Kanou et al. 2003:39 [ref. 27057], Mundy & Parrish 2004:403 [ref. 27877], Prokofiev 2006:17 [ref. 28506], Prokofiev 2015:221 [ref. 33926], Anderson et al. 2016:289 [ref. 34802], Anderson & Johnson 2017:187 [ref. 35189], Anderson et al. 2018:49 [ref. 36270], Prokofiev 2018:393 [445] [ref. 36152], Fricke et al. 2019:127 [ref. 36673], Lisher et al. 2021:513 [ref. 38411]). Current status: Valid as Grammatonotus Gilbert 1905. Callanthiidae.