326 
ZOOLOGY. 
Sir John Ricliardson, in tlie addenda to the fishes in F. B. A., acknowledges the receipt of 
several specimens of three different kinds of trout from P. W. Dease, esq., taken in New 
Caledonia, (British Columbia.) One named svjoj^^^h lie says, "resembles the young of an 
anadromous salmon. The scales are thin, flexible, and bright; the body is marked chiefly 
above the lateral line ivith scattered crucial nr crescentic blacl- sjMts, and the dorsal and caudal 
are thickly dotted Avith oval blackish marks in rows.'" The fins generally, but the under ones 
especially, are small, and the latter appear to have been of a pale hue. * * "' The 
characters ascribed by Dr. Gairdner to the T. tsuj)pitch of the Columbia agreeing well with this 
fish, and the names being so similar, we may conclude that they are the same; and also that 
they belong to the species named silvery -ivhite scdmon-tront by Lewis and Clark." If it were 
not that Gairdner says distinctly that the fins and tail of the T. tsuppitch are destitute of sp>ots, 
I should think it very likely tliat the T. tsuppitcli is the same as the suppai, perhaps the same as 
the silvery -u-kife solmon-trout of Lewis and Clark, which, it is not unlikely, is that now known 
to the Oregon settlers as the '■'loliite salmon,'' although it may be the S. pancidens. There are, 
however, differences which cannot readily be explained between Lewis and Clark's statements 
concerning the size and period of "season" of their icldte salmon-troid and Dr. Gairdner' s 
notes concerning the S. ixmcidens. Lewis and Clark state that its Aveight is " tei piounds'' 
Gairdner' s S. paucidens "has an average weight of three or four pounds.''^ Lewis and Clark 
say that their fish " is in excellent order when the scdmon are out of season." Dr. Gairdner 
remarks that the S. jxiucidens " is taken in company iAe yS'. Gairdneri" and the quinnat," 
(the common salmon of Lewis and Clark.) The 2vhite salmon of the settlers runs up the rivers 
much later in the season than the spring salmon noted by Dr. Gairdner, and, if my memory 
serves me, chooses the same month as the aS*. Scouleri ; in this respect agreeing with thews'. 
tsuppitcli, which, according to Dr. Gairdner, ascends with the "ekewan," {S. Scouleri?) 
The salmon described by Girard in the General Report on Fishes, Pacific Railroad Reports, 
vol. 10, page 312, as the Fario argyreus, Grd., may, perhaps be the 8. p)aucidens, Rich. It is 
an unspotted vide Plate LXX, Fig. 1.- — (See remarks beyond, under head of Salmo argyreus,) 
3. SALMO ARGYREUS, Grd. 
Plate LXX. — Gen. Rep. Fishes. 
Syn. " Salmo argyreus, Grd " (Mss.) Pacific R. E. Eep.Gen. Eop. Fishes, 1858, p. 312. 
Fario argyrem, Grd. Proc. A. N. Sc. PliiL VIII, 1856, 218— Ib. Pacific R. R. Rep. vol, VT, Part IV. p. 32. 
As the description of this species given by Dr. Girard seems based on the characters of 
two young, partially groivn fish, the specific characters thus deduced are probably much unlike 
those of the adult in good condition. For this reason no specific distinctions are given in this 
place; but, for the convenience of those interested in the subject, they are inserted in the 
accompanying note. 
My oAvn specimen, marked 580, Smithson. Cat. Fishes, Avas caught at the mouth of Nisqually 
riA^er, (emptying into Puget Sound near Port Steilacoom,) December 1, 1856. In my note book 
I find that its belly and sides Avere bright silvery; back, and top of head, silvery blue. Lateral 
line strongly defined. It Avas called by the natives satsup. 
George Gibbs, esq., in a letter to me, says: "The satsup) arrives at the mouth of the Puyallup 
about the end of December, and remains until spring. Towards that season, when the streams 
emptying into the sound are raised by the melting of the snow, the fish ascend them. This 
* In a foot-note Richardson says : "In one specimen the spots on the fins are almost obsolete." 
