Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species related to Xenichthys agassizii: [ 1 ] record

agassizii, Xenichthys Steindachner [F.] 1875:34 [6] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 72 (1. Abth.); ref. 4223] Galápagos Islands. Syntypes: ?BMNH 1890.2.25.8 (1); MCZ uncat. (3), 10430 (2); ?USNM 153612 [ex MCZ 17352] (1); NMW 75896 (2), 78065 (2). On p. 6 of separate. •Valid as Xenichthys agassizii Steindachner 1875 (sometimes dated to 1876) -- (Allen & Robertson 1994:154 [ref. 22193] as agassizi, Grove & Lavenberg 1997:409 [ref. 24023] as agassizi, McCosker & Rosenblatt 2010:192 [ref. 30957] as agassizi, Tavera et al. 2018:221 [ref. 35783], Parenti 2019:174 [ref. 37021]). Current status: Valid as Xenichthys agassizii Steindachner 1875. Haemulidae: Haemulinae. Distribution: Eastern Pacific: Galápagos Islands endemic. Habitat: marine.