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MUSEUM OF COMPARATIVE ZOOLOGY. 31 
banded specimen found among them. The typical and also albinos of strigosa 
and Coopert occurred in this vicinity. 
“T continued my course northward from Brigham City, pitching my tent on 
the banks of Bear River. The valley here was considerably broken by the 
mountain spurs, through one of which the river had cut its way, leaving high 
rocky cliffs on either side, with scattered clumps of bushes along the river and 
on the edges of the bluffs. Everything seemed favorable here to the existence 
of snails. My first find was near the edge of the bluff, in cattle tracks and 
small shady holes in the ground, of the white variety I call Binneyi. (See 
p. 29.) These were all plain white. They were quite plentiful just on the 
brow of the bluff and the slope towards the river. The next I found was in a 
clump of bushes among leaves and brush. These I have called variety albo- 
fasciata. (See p. 32.) The body of the shell is clouded, with the broad, re- 
volving white band at the periphery. Some of this variety are beautifully 
clouded beneath. None in these bushes were white. ~ 
“T next went up to the rocky cliffs about three miles from my camp, and 
here among bushes I found the plain white varieties, Binney, with and with- 
out the denticle on the peristome. I worked my way among the bushes and 
- rocks to the foot of the cliffs, and here on a mossy, grassy slope, directly at the 
foot of a high cliff, I found a colony of the ribbed variety castaneus. (See 
p. 32.) This spot is continually shaded by the tall cliff, the sun never shining 
on it. Most of this colony are faintly marked with the broad white band of 
albofasciata, but a few are plain chestnut-colored. I next crossed a small ra- 
vine to another cliff, where a small patch of wild rye was growing very luxu- 
riantly. It was about fifty feet square, directly beneath a little gully in the 
cliff above, where the melting snows of spring and heavy summer rain formed 
a little rivulet, pouring over the cliff and irrigating the rye. In this patch I 
found a very prolific colony of the small interesting variety 1 have called 
Gouldi. (See p. 32.) So plentiful were they, that I picked up by actual count 
one thousand in about two hours. No large specimens were associated with 
them, while the little fellows strayed but a short distance from the rye. No 
typical strigosa were found in this vicinity ; all were ribbed. 
“From here I went. to Logan, Utah, where I found the variety with micro- 
scopic revolving ribs, beginning of Haydeni, among stones at the head of a 
gulch quite high on the mountains. ‘The typical strigosa and Cooperi were 
found here also. 
“T next went to Franklin, just across the Utah line in Idaho, where I found 
the thin, frail, iron-stained variety of strigosa, among red sandstones. 
“You will see by this account that nearly all of these colonies were sepa- 
rated, though some of them were but a few yards apart. While the typical stri- 
gosa and Cooperi, large and small, seem to range over the whole region where I 
collected, Ogden seems to be the dividing line between the transverse-ribbed 
varieties and the longitudinal-ribbed varieties. No transversely ribbed speci- 
mens were found south of Ogden; but a few Haydeni and the Logan variety 
(beginning of Haydent) are all that belong to the Haydenz group that I found 
north of it, excepting a keeled variety found on the mountains of Salmon River, 
Idaho. Whether there is any meaning in this I cannot say. The field is so 
large,* many years will be required to work it up thoroughly. I have no 
doubt other varieties will be found.” 
* In another of Mr. Hemphill’s letters he writes: ‘‘The little spot in Utah 
where I found my Utah series is probably the only one that we may say is worked 
up in the whole of the great basin of Utah, Nevada, Montana, and Idaho. The field 
is very large, and there are many ranges of mountains passing through it that must 
yield some nice things, and no doubt many more varieties of strigosa are just waiting 
for the catcher.” 
