82 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



aa. Hyoid bone without teeth. 



c. Body elongate, moderately compressed, not much elevated, the depth .23 of 

 length : head large and long, notably so in the adult, nearly .30 of length, .22 

 to .25 in the young; top of head .14 to .18 of length ; interorbital space broad, 

 .07 to .08£ of length ; snout rather conical and pointed, .09 of leDgth, blunter 

 in the young; mandible .22 of length in adult, .15 in young : eye small, nearly 

 in a line with the axis of the body : scales very small, similar to those in the 

 other species, in about 230 transverse rows : caudal fin little forked ; adipose 

 fin quite small, shorter than the eye; pectoral and ventral fius not elongate: 

 red spots about the size of the pupil, confined to the sides of the body, the 

 back being nearly plain. Rivers west of the Sierra Nevada bairdi.* 



cc. Body oblong or elongate, moderately compressed, not much elevated, the 

 depth .20 to .30 of length : head large, but not very long, its length .21 to 

 .24 of length, the top about .14, the rather broad interorbital space about .07 : 

 mouth large, the maxillory reaching more or less beyond the eye, about .10 of 

 length ; the mandible about .15: eye large, more or less above the line of tho 

 axis of the body: scales very small, in about 230 transverse rows: caudal fin 

 slightly lunate in the adult, forked in the young; adipose fin small; pectoral 

 and ventral fius not especially elongate : red spots on body chiefly confined to 

 the sides, rather less than tho size of the pupil ; the back and vertical fins 

 more or less barred or mottled ; coloration often plain in sea-run individuals. 

 Rivers from Little Tennessee in Georgia to Lake Superior and Hudson's Bay. 



PONTTNAUS.t 



The original type of 8. speetabllis and of S. campbclli, the latter being 

 merely a substitute name, is still preserved in the National Museum. 

 Although badly decayed, its identity with the species here called spec- 

 tabilis is evident. The types of Salmo parkei are now lost, but that the 

 species is the same as S. spcctabUis seems unquestionable. The name 

 spcctabUis should now be retained for this tish, as the spcctabUis of 

 Valenciennes, being a Salar, belongs to a different geuus. 



6. GILA OREGONENSIS (Richardson) Jordan. 



1836 — Cyprinus (Leucisais) oregonensis Richardson, Fauna Bor.-Amoricana, Hi, p. 305. 

 LeuciHcus oregonensis DeKay, New York Fauna, Fishes, p. 215, 1842. 

 Leuciscus oregonensis Cuv. &, Vai.., Hist. Nat. (les Poissons, xvii, p. 326, 1844. 

 Leuciiictoi oregonensis Stoker, Synopsis Fishes N. A. p. 412, 1846. 

 I'tychocheiluH oregonensis Girard, Proc. Ac. Nat. Sc. Phila. p. 209, 1836. 

 Plychocheilus oregonensis Girard, Pac. R. R. Expl. Fishes, p. 298, pi. 64, figs. 5-9, 

 1858. 



Leuciscus oregonensis GOntuer, Cat. Fishes Brit. Mus. vii, p. 239, 1868. 

 PtychuchiluH oregonensis Joudan &. Copeland, Check List of Fishes, p. 151, 1876. 

 (iila oregonensis Jordan, Catalogue Fishes N. A. p. 424, 1878. 

 1855 — rtychocheilus gracilis Agassiz, Am. Journ. Sci. Arts, xix, p. 229. 



Specimens from the Clackamas River agree in all essential respects 

 with the descriptions given by Agassiz, Girard, and Giinther. The 



* Salvelinus bairdi (Suckley) Gill & Jordan. — Salmo bairdii, Suckley, 1861. 



t Salvelinus fontinalis (Mitchill) Gill & Jordan. — Salmo fontinalis, Mitchill, 1814. — 

 Salmo alhgheniensis, Rafinesquo, 1820.— Salmo nigrescens, Rafinesque, 1820. — f Salmo 

 hearnii, Rich., 182-. — Salmo canadensis, H. Smith, 1834. — Salmo erythrogaster, DeKay, 

 1842. — Baione fontinalis, DeKay, 1842. — Salmo immaculatus, II. R. Storer, 1H50. — Salmo 

 hudsonicus, Sackley, 1861. The names immaculatus and canadensis were given to the 

 Canadian Saluaon-Trout, which is a Brook-Trout run into the sea. 



