962 _ The American Naturalist. [November, 
of 2550 feet at the mouth of the Kicking Horse, and again to the 
south in the headwaters of the Missouri. No specimens of williamsoni 
were noticed at Field, and the species obtained there is very different 
from williamsonii. The species found at Field is closely related to C. 
kennicotti, but has much larger scales. 
Head, 43-5; depth, 43-53; D., 103-114; S., 12-13; scales, 7-60 to 
63-7. Form rather heavy, little elevated ; the snout broad, very blunt 
and decurved ; greatest depth of head equals its length less the operele. 
Mouth low, the snout but little projecting, maxillary reaching eye in 
larger specimen, further in the smaller ones. Eye equals snout, 4-inch 
head; supplemental bone a crescent; gill rakers much as in william- 
soni; scales large, dull silvery. 
Named in honor of Rev. J. M. Coulter, author of the Manual of 
the Botany of the Rocky Mountain Region. 
HE DARTERS or Canapa.—Hitherto but a single species of 
Etheostoma has been known from British America. E. boreale was 
taken by Jordan at Montreal. Last summer I obtained several spe- 
cies in western Canada, which may be mentioned in advance of my 
general report on my summer’s explorations. 
2. E. aspro (Cope and Jordan). Winnipeg and Brandon. 
3. E. giintheri E. and E. I procured three specimens of this spe- 
cies at Winnipeg. I have also discovered three specimens in the col- 
lections of the Indiana University taken by Prof. Meek near Cedar 
Rapids, Iowa. 
- Diagnosis—Premaxillaries not protractile ; gill membrane scarcely 
connected ; ventral line with the median scales enlarged; lateral line 
complete ; palate with well-developed teeth ; preopercle entire; nape 
and breast (with the exception of the median line) naked; cheeks and 
opercles each with about three series of largescales. Head, 34$; depth, 
63; dorsal, 10-13 or 14; anal 2, 93-114; scales, 5-52 to 54-5. Closely 
related to E. aspro. 
4. E. nigrum Rafinesque. Specimens of this species were taken at 
Westbourne in a tributary of Lake Winnipeg, in the Assiniboine at 
Brandon, and it was found to be quite abundant in the Cu’Appelle 
River at Fort Cu’Appelle. I was assured both at Brandon and at 
Cu’Appelle that this speciés was abundant in some streams further 
orth, 
5. E. iowæ Jordan and Meek. This species was abundant in the 
Swift Current at the station of the same name. 
