SALMON INVESTIGATIONS IN THE COLUMBIA RIVER BASIN IN 1896. 75 
Body robust, subcylindrical, back somewhat elevated ; snout rather long, mouth inferior, little 
oblique, the lower jaw included; maxillary not reaching front of orbit; upper lip without frenum ; 
barbel present, but small. Lateral line incomplete, interrupted in many places, about 30 pores devel- 
oped. Origin of dorsal fin midway between front of pupil and base of caudal fin; pectorals rather 
short, reaching about three-fourths the distance to base of ventrals ; ventrals reaching vent ; anal large, 
its longest ray 11 in head; caudal widely forked. 
Color in alcohol, olivaceous, mottled and blotched with darker on back and sides ; under parts 
pale; an obscure pale streak from eye to base of caudal fin, below which is a broad dark band; dorsal, 
pectorals, and caudal dusky ; other fins plain ; a black blotch at base of caudal. 
An examination of the 48 specimens which we designate as cotypes shows all the important char- 
acters to be fairly constant. The barbel is in a few cases obscure or possibly absent. The number 
of scales in a transverse line varies from 68 to 78, the average being 73. The lateral line is in all cases 
incomplete, though in different degrees; sometimes it is continuous for only 6 or 8 scales, after which 
there are several interruptions and only 8 to 10 more pores ; in others there are 20 to 30 pores in a 
continuous series. 
This form is distinguished from Agosia nubila chiefly by the smaller size of the scales. This 
difference will appear from an examination of the tabular statement which follows : 
Table showing number of scales in Agosia nubila and Agosia klamathensis. 
Locality. 
No. of 
specimens 
examined. 
Variation 
in number 
of scales. 
Average 
number of 
scales. 
Agosia nubila: 
Colville River, Meyers Falls 
6 
52-57 
55 
Little Spokane Iiiver, Dart's Mill 
9 
52-63 
62 
Hangman Creek, Tekoa, Wash 
10 
51-65 
57 
Lake Coeur d’Alene 
9 
61-70 
66 
Kewaukum River, Chehalis 
(?) 
53-58 
55 
Boise River, Caldwell-. 
56 
56 
Potlatch Creek, Lewiston 
10 
60-66 
62 
Pataha River, Starbuck 
9 
60-64 
62 . 
Walla Walla River, Wallula 
15 
47-55 
49 
Mill Creek, Walla Walla 
20 
52-61 
55 
Umatilla River, Pendleton 
3 
48-58 
Columbia River, Umatilla 
7 
48-57 
53 
Natchess River, North Yakama 
(?) 
53-58 
56 
Shookumcliuck River, Chehalis 
6 
50-57 
Agosia klamathensis : 
Pelican Bay, Upper Klamath Lake 
49 
68-78 
73 
17 . Clupanodon cagruleus (Girard). California Sardine. 
Very abundant in Siuslaw River about the cannery wharf at Florence during the canning season. 
It seems to disappear as soon as the fall rains set in and the river becomes filled with fresh water. 
The specimens seen were each about 2) £ inches in length. 
