ZOOLOGY. 345 



New Caledonia as follows: &quot;The ultai of the New Caledonia tribes differs from the last* in 

 the scales being firmer, duller, and rather smaller, and the body more thickly and generally 

 covered with black spots, which extend ivell doivn the sides. The spots on the dorsal and tail are 

 also more regular and conspicuous, and the teeth are stronger, especially those on the palate 

 bones; a flexuose row on the vomer does not extend quite so far back as the palatine teeth. 

 The ultai is most probably the Salmo darkii, (p. 225,) and also the dark salmon-trout of Lewis 

 and Clark, noticed in page 163.&quot; 



The mykiss of Kamtschatka, referred to by Richardson, is the S. purpuratus of Pallas. From 

 the abundance of red and purplish markings of this fish marks by no means strongly displayed 

 by Dr. Girard s S. darkii, even when that fish is in bad condition we certainly cannot consider 

 the latter to be the mykiss, or that the S. darkii of Girard is that of Richardson. 



The Salmo darkii of Richardson is probably one of the autumnal species of anadromous 

 salmon which, not feeding in fresh water, become, when exhausted, marked with patches of 

 red. No specimens have been obtained in any of the recent collections. 



SALMO MASONI, Suckley. 



Fario darkii, GRD. pi. LXXI, figs. 5-8, vol. X. 



SP. CH. Body sub-fusiform ; head well developed, forming the fifth of the total length. Maxillary slightly bent, extending 

 to a vertical line drawn inwardly to the posterior rim of the orbit. Jaws equal. Anterior margin of dorsal fin a little nearer 

 the extremity of the snout than the insertion of the caudal fin. Back brownish gray; upper surface of head blackish gray; sides 

 silvery gray ; fins ash gray; dorsal and caudal spotted. Upper regions of head and body studded with irregular black spots or 

 specks. Tail emarginate. 



SYN. Fario clarkii, GRD. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 219. IB. Gen. Rep. Fishes, p. 314. [Non 

 Salmo clarkii, RICHARDSON.] 



I obtained this species at the Cath-la-pootl river, August 2, 1853, and am indebted for it to 

 the skill of Captain McClellan, as he took it with the artificial fly at a time when they did not 

 readily bite at any bait. The Indians brought to our camp about the same time what I sup 

 posed to be the same species, some of them two feet long. 



When fresh its colors were as follows: Back, dark olive; sides, silvery, with green and purple 

 reflections; belly, white; iris, yellow; spots black. C. 



According to Dr. Girard, the arrangement of the rays is as follows: Br. 11; p. 14; Y,?; A, 13; 

 D, 15. For reasons that seem to me sufficiently good, I have considered this fish distinct from 

 that described as Salmo darkii by Richardson, and have named it in honor of my good friend 

 Governor Charles H. Mason, of Washington Territory, who has so frequently aided me in 

 adding to my collections specimens of great interest and value in various branches of natural 

 history. 



Specimens of this trout were obtained by the writer at Fort Dalles, on the Columbia, from 

 the same waters as the other brook-trout was taken. It runs up the small streams a little later 

 than the latter, and is distinguishable at a glance by its smaller and less numerous black spots, 

 and by wanting the red patches under the jaws, already alluded to. In habits, size, &c., it is 

 almost precisely similar to the other species, and is taken with the same baits, jumping readily 

 at the artificial fly, and freely taking meat, grasshoppers, worms, and similar food. 



There is a trout very common in the small streams emptying into Puget Sound, near Fort 

 Steilacoom, during the latter summer months and early autumn, which resembles this species 



* Alluding to a fiah known to the tribes of New Caledonia as the &quot; suppai.&quot; 



44 Q 



