194 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
14 . Couesius greeni Jordan. 
Coiwsiiis greeni Jordan, Proc. U. S. Nat. Mus. 1893, 313. Type locality: Stuart Lake near Fort 
St. Janies, British Columbia. (Type, No. 44454, U. S. Nat. Mus.) 
In the collection made by Messrs. Bean and Woolman, September 20, 1892, in a small creek 
at Sand Point, Idaho, we find three examples of this species. In length they measure 2|, 3, 
and 3;|- inches, respectively. Head in length of body, 4}, 4t, 4); .depth, 4|, 5, 5; eye, 4, 3^, 34; 
snout, 34, 3^, 3^; iuterorbital width, 34, 3;|:, 3; D. 8; A. 8; scales, 10-55-6, 11-60-5, 11-60-6; 
34 before the dorsal. The origin of the dorsal fin is at a point midway between base of caudal 
flu and the preorbital (not “ preopercle,” as given in the original description of C. greeni^ 
evidently a misprint for “ iireorbital”). These Sand Point siiecimens agree well with the 
type of C. greeni with which we have compared them. This species seems to differ from the 
Couesius of the Upper Missouri basin {Couesius dissimilis) in the somewhat larger scales and in 
having the scales less crowded on anterior part of body. 
13 . Cyprinus carpio Linnajus. Carp. The carp has been introduced into a number of ponds and 
small lakes of the Columbia basin and from these has escaped into tlie streams. We saw it in 
Payette Elver at Payette and heard of it elsewhere. 
16. Mylocheilus caurinus (Richardson). “Chub’’; “Whitejish.” 
Cyprinus {Leuciscus) caurinus Richardson, Fauna Boreali-Americana, iii, 304, 1836. Type locality : 
Columbia River, at Fort Vancouver. 
Specimens obtained from Pend d’Oreille River at Newport, Idaho, 1 ; Boise River at Cald- 
well, Idaho, 19; Payette River at Payette, Idaho, 7; Snake River at Payette, Idaho, 8; 
Columbia River at Umatilla, Oreg., 16; Walla Walla River at Wallula, Oreg., 13; Blue 
Lakes, Idaho, 8; UmatillaEiver at Pendleton, Oreg., 1. An abundant and widely distributed 
lish in the Lower Columbia basin ; not known from Snake River above the falls, and probably 
does not occur there. Observed to be very abundant in the Pend d’Oreille below Newport. 
17 . Ptychocheilus oregonensis (Richardson). “ Squawfish.” 
Cyprinus (Leuciscus) oregonensis Richardson, Fauna Boreali-Americana, in, 305, 1836. Type 
locality : Columbia River, at Fort Vancouver. 
Specimens obtained from Payette River at Payette, Idaho, 27; Hangman Creek at Tekoa, 
Wash., 9; Clearwater Creek at Lewiston, Idaho, 2; Potlatch Creek near Lewiston, Idaho, 
3; Snake River at Payette, Idaho, 2; Boise River at Caldwell, Idaho, 28; Walla Walla River 
at Wallula, Wash., 1; Columbia River at Pasco, Wash., 6; Columbia River at Umatilla, 
Oreg., 4; Umatilla River at Pendleton, Oreg., 6; Natchess River at North Yakima, Wash., 4; 
Skookumchuck River near Centralia, Wash., 28; Newaukum River near Chehalis, Wash., 8; 
Mouth of Colville River, Colville, AVash., 6; Spokane River below Spokane, AVash., 10; Lake 
Pend d’Oreille at Sand Point, Idaho, 1; Pend d'Oreille River at Newport, Idaho, 7 ; Flathead 
Lake, Mont., 28. In the Pend d’Oreille River the squawfish is even more abundant than M. 
caurinus. No differences could be discovered between the above-mentioned specimens and 
others from the Sacramento River basin in California. 
18. Leuciscus hydrophlox (Cope). Po-he-iva. 
Clinostonms hydrophlox Cope, Hayden’s Fifth Annual Report, 1871 (1872), 475. Type locality: 
Blackfoot Creek, Idaho. 
CUnostomus montanus Cojie, 1. c., 475. Type locality: Grass Creek, Idaho. 
Clinostonius twnia Cope, Trans. Amer. Philos. Soc. Phila. 1874, 133. Type locality: Utah Lake. 
Numerous specimens of this species were collected in the Snake River at Idaho Falls, in 
Ross Fork of Snake River (on the Fort Hall Indian Reservation), and in Mink Creek and Port 
Neuf River near Pocatello, Idaho. The Indian name Fo-lie-wa means striped. The following 
tabular statement shows the variation in the number of anal fin rays among the examples col- 
lected at these places. 
Locality. 
Number of 
specimens 
collected. 
9 anal 
rays. 
10 anal 
rays. 
11 anal 
rays. 
12 anal 
rays. 
Average 
number 
of rays 
in anal. 
13 
1 
9 
3 
11 
Koss Fork 
52 
1 
17 
37 
c 
12i 
5 
1 
4 
11 
Port Neuf River 
118 
41 
65 
12 
11 
