FAMILY Percopsidae Agassiz, 1850 - percopsids, trout perches [=Percopsides Agassiz, 1850] Notes: Percopsides Agassiz, 1850:286 [ref. 66] (family) Percopsis [stem Percops- confirmed by Bleeker 1859d:XXXI [ref. 371], by Günther 1866:207 [ref. 1983] and by Gill 1872:15 [ref26254]] GENUS Percopsis Agassiz, 1849 - trout-perches [=Percopsis Agassiz [L.], 1849:81, Columatilla Whitley [G. P.], 1940:243, Columbia Eigenmann [C. H.], 1892:234, Salmoperca Thompson [Z.], 1853:33] Notes: [ref. 65]. Fem. Percopsis guttatus Agassiz, 1850. Type by subsequent monotypy. Appeared first without named species. Description begun on p. 80 (published Nov. 1848), name appears on p. 81 (published Mar. 1849); genus dates to Mar. 1849, with type by subsequent monotypy. Appeared with detailed description and with species included in Agassiz 1850:284 [ref. 66]. The species P. pellucida Thompson apparently predates Agassiz's P. guttatus (see Poly 2004:2 [ref. 27584]), but the type species guttatus Agassiz apparenlty can be maintained based on prevailing usage. •Valid as Percopsis Agassiz, 1849 -- (Jenkins & Burkhead 1994:589 [ref. 21581], Wiley et al. 1998:423 [ref. 25588], Mecklenburg et al. 2002:262 [ref. 25968], Poly 2004:1 [ref. 27584], Scharpf 2006:35 [ref. 30386]). Current status: Valid as Percopsis Agassiz, 1849. Percopsidae. (Columatilla) [ref. 4660]. Fem. Columbia transmontana Eigenmann & Eigenmann, 1892. Type by being a replacement name. Replacement for Columbia Eigenmann & Eigenmann, 1892, preoccupied by Columbia Rang, 1834 in Mollusca. The name, Columatilla Whitley, 1940, was an unnecessary replacement name for Columbia Eigenmann, 1892 because the genus of mollusc is spelled Colombia Rang, 1834 rather than Columbia. •Synonym of Percopsis Agassiz, 1849 -- (Poly 2004:2 [ref. 27584]). Current status: Synonym of Percopsis Agassiz, 1849. Percopsidae. (Columbia) [ref. 1213]. Fem. Columbia transmontana Eigenmann & Eigenmann, 1892. Type by monotypy. The name, Columatilla Whitley, 1940, was an unnecessary replacement name for Columbia Eigenmann, 1892 because the genus of mollusc is spelled Colombia Rang, 1834 and also may be a nomen nudum. •Synonym of Percopsis Agassiz, 1849 -- (Poly 2004:2 [ref. 27584]). Current status: Synonym of Percopsis Agassiz, 1849. Percopsidae. (Salmoperca) [ref. 27411]. Fem. Percopsis pellucida Thompson, 1850. Type by monotypy. An unneeded new name for Percopsis Agassiz, 1849. Appeared as a nomen nudum in Thompson 1850 [ref. 4392]. •Synonym of Percopsis Agassiz, 1849 – (Poly 2004:1 [ref. 27584]). Current status: Synonym of Percopsis Agassiz, 1849. Percopsidae. Species Percopsis omiscomaycus (Walbaum, 1792) - trout-perch [=Salmo omiscomaycus Walbaum [J. J.] (ex Pennant), 1792:65, Salmoperca eoceta Thompson [Z.], 1853:34, Percopsis guttatus Agassiz [L.], 1850:286, Pl. 1 (figs. 1-2), Percopsis hammondii Gill [T. N.], 1864:151, Percopsis pellucida Thompson [Z.], 1850:164] Notes: [Petri Artedi sueci genera piscium Part 3; ref. 4572] Albany River, Hudson Bay, Canada. Current status: Valid as Percopsis omiscomaycus (Walbaum, 1792). Percopsidae. Distribution: North America: Alaska, through much of Canada, and northcentral and northeastern U.S.A. Habitat: freshwater. (eoceta) [History of Vermont, natural, civil and statistical, in three parts, with an appendix.; ref. 27411] Current status: Synonym of Percopsis omiscomaycus (Walbaum, 1792). Percopsidae. (guttatus) [Lake Superior; ref. 66] Sault Sainte Marie at Michipicotin, and Fort William, Lake Superior, U.S.A. and Canada. Current status: Synonym of Percopsis omiscomaycus (Walbaum, 1792). Percopsidae. Habitat: freshwater. (hammondii) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 16 (no. 3); ref. 1698] Kansas, U.S.A. Current status: Synonym of Percopsis omiscomaycus (Walbaum, 1792). Percopsidae. Habitat: freshwater. (pellucida) [Proceedings of the Boston Society of Natural History v. 3 (1848-1851); ref. 4392] Lake Champlain; Winooski River at Burlington, Vermont, U.S.A. Current status: Synonym of Percopsis omiscomaycus (Walbaum, 1792). Percopsidae. Habitat: freshwater. Species Percopsis transmontana (Eigenmann & Eigenmann, in Eigenmann, 1892) - sand roller [=Columbia transmontana Eigenmann [C. H.] & Eigenmann [R. S.], in Eigenmann, 1892:234] Notes: [Science v. 20 (no. 507); ref. 1213] Mouth of Umatilla River, Oregon, U.S.A. Current status: Valid as Percopsis transmontana (Eigenmann & Eigenmann, 1892). Percopsidae. Distribution: Western North America, Columbia River drainage, Idaho, Washington and Oregon. Habitat: freshwater.