SUCKLEY MONOGRAPH OF THE GENUS SALMO. 149 



It has many characters in common with the S. fontlnalis, Mitchill, 

 or common brook and pond trout of New York State. The color of the 

 skin upon the broad anterior rays of tlie under fins, the red s])ots, 

 small scales and general style, are very similar. But the difterent shape 

 of the mouth, the notch between the intermaxillaries, the great size, the 

 larger number of red spots, are sufiticiently diagnostic. 



The two specimens of this fine trout which we possess vary somewhat 

 in their branchiostegals and fin-rays, as follows : 



(Typical.) Br. 14: P.. 13: D. 13: Y. 10: A. 11: C— Dr. Kennerly's 

 specimen, No. 2010. Br. 13: P. 14: D. 11: V. 10: A. 10.— One supposed 

 to be from Lieutenant Mullen, No. 2011. 



36. SALMO PARKEI, Suckloy. 

 PARKE'S RIVER TROUT. 



Stx. — Salmo parlcei, Suckley, Notices of Certain New Species Salmonidiie, New 

 York, June 15, 1861. 

 Green speekled-hack trout. Aitkst, of the Kootenays. 



Sp. Ch. — Head contained about four and a half times in the total 

 length ; its top flat ; muzzle, iDointed. Tail forked ; unspotted. Back 

 dark-green, spotted with spots of lighter green ; sides spotted with red. 

 Scales adherent and about the size of those of S. bairdli. A disposi- 

 tion toward the formation of a fleshy "tit" projecting upward at the 

 point of lower jaws, with a corresponding notch bet\^een the premaxil- 

 laries. Superior maxillary reaches to a point considerably behind the 

 eye. Branchiostegals 13-14. The anterior rays of the lower fins are 

 covered with a difterently-colored skin from that of the rest of the fin, 

 as in S. fontinalls and 8. hairdii. Two teeth on the outer extremity of the 

 vomer, behind which li^om one to three on the shaft. 



Diagnosis. — From ;S'. campbeUi it differs in lacking the cream-colored 

 or whitish spots along the back, by its large head and turned-up knob 

 at the point of the jaw. From 8. hairdii it may be recognized by its 

 larger head, which is contained but four and a half times in the total 

 length ; that of 8. hairdii being contained five times ; also by its more 

 deeply-notched tail, and by the presence of the pale greenish spots on 

 the back. 



Hab. — Kootenay Eiver, Eocky Mountains. 



"A specimen of a young male aitshst was taken April 6,* 1860. Back 

 lighter than olive-green; reflections silvery; beneath, white. Sides with 

 light flesh-colored spots, nearly round; those on the back are of a very 

 pale gTcen. Length, 21 inches; head, 5; to end of lateral line, 18.50; to dor- 

 sal, 9.25 ; to ventral, 10.25 ; to anal, 14.50 ; to adipose, 15. Tail moderately 

 lunated, having a spread of six inches. The body elongated and slender ; 

 head very long; mouth large, with thick "lips;" all the fins dark-colored. 

 It is said to be found in the lakes of the Upper Columbia, Kootenay, and 

 Clarke's Fork."— Gibbs. 



