ZOOLOGY. 335 



The condition of the specimen is such that no reliable statement can be given of the number of 

 fin-rays. Length of skin, 29 inches. Insertion of anal fin about 2ij inches in length. A single 

 tooth on the anterior portion of the vomer. Intermaxillary projection strongly decurved in 

 the dried skin. 



George Gibbs, esq., obtained the following information regarding this salmon from Mr. John 

 Swan, one of the proprietors of the fishery at the mouth of the Puyallup: 



" Totvatl. — These come every fall, with the Shonquid. (S. Scovleri.J They are a speckled 

 salmon, with small black spots, more distinct than those of the Sdiedad, (Satsup ?) The scales 

 are of a duller hue. All the others have bright scales when in salt water, but change on 

 entering the fresh. These last are always didl. They are the largest of the Sound salmon, and 

 run twenty to twenty-five pounds, averaging fifteen. They differ from any of the rest." 



Note. — An alcoholic specimen in the Smithsonian collection, marked 1136, is apparently a 

 female, of some nearly allied species, from the same general region of country. The head and 

 skin are preserved, the flesh having been removed. In general appearance it much resembles 

 the present species, but the spots are more numerous, and round, not confluent. 



SALMO SCOULERI, Rich. 

 Hooked-nosed Saluion; Fall Salmon. 



Btn.— 5a/mo scouleri, Eich Faun. Bor. Amer. Ill, 1S36, 158, and 223 ; pi. xcvii.— DeKat, N. Y. Fauna III, 1842. 



GiBAED, Gen. Eep. Fishes, p. 305 — Herbekt, Fish and Fishing, &c., Suppl. 1850, 37. 

 Salar scouleri, Valenc. in Cuv. and Val. Hist Nat. Poiss. XXI, 1848, 345, 242. — Storeb, Synops. 1846, 



194.— Gbd. in rroc. Acad. Nat. Sc. Fhilad. VIII, 185fi, 217. 

 ? Salmo Jycaodcn, Pallas, Zoog. Eos. Asiat. 

 FiGOHE. —Rich, F. B. A. Ill, 1836 ; pi. 93. 



Sp. Ch. — Male. — Profile much arched, the convexity rising from nape to dorsal fin. The body at that point is thick, 

 tapering from thence to tlie caudal. Intermaxillary prolongation strongly decurved, and armed with large hooked teeth. 

 Under jaw armed with a dilated and slightly incurved knob, similarly provided with strong teeth. The teeth on the sides 

 of both jaws are strong, and very irregular in size or disposition, and extend almost to the angle of the commissure. Teeth 

 on the vomer, present or absent, varying in this respect in different specimens. Caudal fin moderately lunated, the degree 

 varying according to age. 



Colors. — In recent specimens fresh from the sea we find a silvery lustre; not, however, as strongly marked as in the S. 

 gairdneri, S. quinnal, and other species. The ground color of the back is lead color, and that of the belly white, or yellowish 

 white. The baclv and sides are unspotted. 



Ftmale. — The fresh run female differs in having symmetrical jaws, destitute of elongated intermaxillary, or of the incurved 

 knob on the lower jaw. 



Richardson gives the branchial rays as 12-13. Those of the seven specimens in the Smith- 

 sonian collection have from 12 to 14 on either side. Ventral appendages long. 



Richai-dson says: "The 'palatine and vomerine teeth equal the posterior ones on the lower jaw 

 in size, and are implanted in double rows; there are none on the anterior knob of the vomer." 

 Of the seven specimens we have, four have no vomerine teeth, two of the others (females) have a 

 very minute single tooth about the middle of the bone, and the other has a row of rather strong 

 teeth upon it. The latter having dried with the mouth closed, it is difficult to ascertain their 

 exact number or arrangement. 



The heads of the males which are contained in the collection have a membrane stretched 

 across the roof of the mouth in its anterior third; above it there is a cavity opening posteriorly 

 and terminating anteriorly in the maxillary protuberance, forming a cul de sac. 



In speaking of the prolongation and incurvature of the extremities of the upper and lower 

 jaws, Sir John Richardson says that they are " said to be peculiar to the male after spawning." 



