californiensis, Scorpis Steindachner [F.] 1875:47 [19] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 72 (1. Abth.); ref. 4223] San Diego, California, U.S.A. Syntypes: (several) MCZ 4896 [ex Steindachner] (3) San Diego; NMW 69886 (3), USNM 153614 [ex MCZ 4896] (1); ?ZMUC 360 (1) San Francisco. Type catalog: Nielsen 1974:68 [ref. 9588]. On p. 19 of separate. •Valid as Medialuna californiensis (Steindachner 1875) (sometimes dated to 1876) -- (Eschmeyer & Herald 1983:224 [ref. 9277], McAllister 1990:152 [ref. 14674], Sommer in Fischer et al. 1995:1200 [ref. 22829], Thomson et al. 2000:140 [ref. 25640], Nelson et al. 2004:150 [ref. 27807], Love et al. 2005:131 [ref. 37547], Page et al. 2013:154 [ref. 32708], Knudsen & Clements 2016:259 [ref. 34458] in family Kyphosidae, Kells et al. 2016:254 [ref. 35888], Burton & Lea 2019:78 [ref. 37205], Love et al. 2021:169 [ref. 39279], Page et al. 2023:171 [ref. 40505]). Current status: Valid as Medialuna californiensis (Steindachner 1875). Scorpididae. Distribution: Eastern Pacific: southern British Columbia (Canada) south to Pacific coast of southern Baja California Sur (Mexico), including southwestern Gulf of California (Mexico). Habitat: marine.