ZOOLOGY. 327 



variety is the silver salmon, with forlrd tail. It is not very abundant, and does not run in 

 'schools.' Weight, 15 to 18 pounds; average, 13." He also mentions a small unspotted salmon, 

 which the Indians say grows no longer than 18 inches. 



The Indians probably confuse several species under the name of satsiip, and perhaps consider 

 all silvery scdmon, with red flesh and forlrd tails, as one species. 



Note. — Mr. Girard describes the species as follows. The color being taken from the 

 preserved specimens are, of course, unnatural, and should have those given above substituted: 



"Sp. Ch. — Body very much depressed, rather deep upon its middle region, and quite tapering 

 posteriorly. Head moderate, constituting the fifth of the entire length. Jaws equal. Maxillary 

 slightly curved; its free extremity extending to a vertical line drawn posteriorly to the orbit. 

 Anterior margin of dorsal fin nearer the extremity of the snout than the insertion of the caudal 

 fin. Bluish gray above; silvery along the middle of the flanks; yellowish beneath." — Girard. 



4. SALMO TSUPPITCH, Rich. 



SYS.—Salmo tsuppilc/>, Kicn. F. B. A. Fishes, 1836, 224.— DkKay.N. T. Fauna, IV, 1842. — (Stokkr, Synop 1S4B, 197 — 

 Herbert, Siipplem. to Fish and Fishing, ISoO, 35. ['Son Fariohypi)ttch,0 rd I'r. A. N. Sc Phil. VIII, 185C, 

 218.— Ib. Gen. Rep. Fishes, P. R. R. Reports, 1S5S, vol. X, 310.] 

 ? Whi/e salmon, Settlers on the Columbia. 

 ? Silvery-white salmon-trout, Lewis and Clark. 

 FiGCRia — The plate (LSIX, figs. 1—4) in the Pacific Railroad Reports, vol. X, represents the Salmo OMsii and 7tol this 

 species. — (See remarks on <S. Gibbsii.) 



Sp. Oil. — Convexity of dorsal profile rising gradually to origin of first dorsal, declining from thence to the tail Caiulal 

 forked. Head small , exactly conical, tcrminatir.g in a pointed snout. Commissure of mouth very slightly oblique. Rack of body 

 and head studded with oval and circular spots ; sides and Jins, incltidmg the caudal, destitute of sjiUs. Teeth minute and sharp ; 

 a single row on each palate bone, a very few on the antirior end of the vomer, and a double row on the tongue. [The 

 foregoing description is deduced from Dr. Gairdner's notes in Rich. F. B. A. p. 224.] 



The portions italicized in the above summary of specific characters, are those differing strongly 

 from a correct description of the fish taken by Dr. Girard for this species, and described by me 

 as the S. Gibbsii. 



Dr. Gairdner says that this salmon ascends the Columbia with the ekewan, (late in Aiigust 

 and during September.) The formula he gives for the 7-ays is as follows: "Br. 13; P. 13; V. 

 10; A. 13; D. 12—0." 



Sir John Richardson says that "a spine containing sixty-four vertebra?, and an under jaw 

 with ten curved teeth in each limb," were all the bones that he could with any degree of 

 correctness identify. (This was owing to the damaged condition of the specimens received.) 

 The dimensions in detail of a specimen twenty-one inches in length are given by Dr. Gairdner. 

 In this the anterior margin of the dorsal was one inch nearer the end of the tail than to the 

 tip of the snout. The teeth were "equal in size with those of the S. Gairdneri, or perhaps 

 rather larger." 



I have myself never succeeded in obtaining this salmon, but am strongly inclined to the 

 opinion that it is identical with the fish now known to the settlers on the Columbia as the 

 "■icliite salmon." — (See remarks on the S. paucldens.) 



SALMO TRUNCATUS, Suckle y. 



Slioi't-tailed Salmon; Squaie-tailed Salmon. 



Salmo truncatus, SrcKLEY, Ann. N. Y. Lye. Dec. 1858. 



Typical specimen No. 1134, Smithsonian collection. 

 Sp. Ch. — Bodv fusiform ; dorsal profile moderately arched ; anterior margin of dorsal fin much anterior to a point equi- 

 distant between the nose and the insertion of the tail ; head small ; jaws fully provided with small teeth ; tail small, its free 



