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_Clethrionomys gapperi solus_, Loring
Male
type |133|33 |20 | 22.3 | 12.5 |10.9 |6.8 |5.1 |3.4 |5.3 | 9.0
Male
5 av. |131|34 |20 | 22 | 12.7 |10.8 |6.8 |5.3 |3.5 |5.1 | 9.1
min.|128|33 |19 | 21.8 | 12.5 |10.5 |6.7 |5.1 |3.3 |5.0 | 8.9
max.|133|36 |20 | 22.3 | 13.0 |11.2 |7.1 |5.5 |3.6 |5.3 | 9.5
Female
5 av. |128|34 |19 | 21.3 | 12.5 |10.5 |6.5 |5.4 |3.5 |4.9 | 9.2
min.|124|31 |19 | 20.9 | 12.3 |10.3 |6.0 |5.2 |3.3 |4.8 | 8.9
max.|140|36 |20 | 21.7 | 12.7 |10.7 |7.0 |5.6 |3.6 |5.0 | 9.5
_Clethrionomys gapperi stikinensis_, Stikine River at Great Glacier
Male
type |145|39 |20 | 23.2 | 13.9 |11.4 |7.3 |5.0 |3.1 |5.5 | 9.5
Male
4 av. |136|35 |20 | 22.2 | 13.0 |11.1 |6.8 |5.2 |3.4 |5.2 | 9.4
min.|132|33 |19 | 21.5 | 12.3 |10.7 |6.5 |5.0 |3.1 |5.1 | 9.1
max.|145|39 |20 | 23.2 | 13.9 |11.4 |7.3 |5.6 |3.5 |5.5 | 9.7
Female
7 av. |134|33 |19 | 21.8 | 12.7^6*|10.9 |7.0 |5.4 |3.4 |5.1 | 9.5
min.|125|30 |19 | 21.5 | 12.5 |10.5 |6.7 |5.3 |3.2 |5.0 | 9.2
max.|147|35 |20 | 22.2 | 12.9 |11. |7.1 |5.6 |3.7 |5.3 | 9.8
_Clethrionomys gapperi wrangeli_, Wrangell
Male
9 av. |139|36 |19 | 23.4^8| 13.3 |11.4^8 |7.3 | .6 | .6 | .6 | 9.6^8
min.|130|31 |18 | 22.9 | 13.0 |10.9 |7.1 |5.5 |3.3 |5.4 | 9.2
max.|151|43 |20 | 23.9 | 13.7 |11.8 |7.6 |5.8 |4.0 |5.8 |10.1
Female
16 av.|134|34 |18^15| 23.2 | 13.3 |11.2^13|7.3 |5.8 |3.5 |5.5 | 9.4
min.|123|28 |17 | 22.4 | 12.6 |10.7 |6.9 |5.5 |3.2 |5.2 | 9.0
max.|156|45 |20 | 24.1 | 14.1 |11.8 |8.0 |6.1 |3.7 |5.9 | 9.7
_Clethrionomys gapperi phaeus_, Chickamin River
Male
5 av. |148|47 |20 | 23.0^4| 13.7^4|11.3^4 |7.5^4|5.3^4|3.5^4|5.3^4| 9.7^3
min.|138|38 |20 | 22.3 | 13.0 |11.1 |7.1 |5.3 |3.4 |4.9 | 9.3
max.|159|51 |21 | 23.8 | 14.6 |11.8 |7.7 |5.6 |3.8 |5.6 |10.0
Female
4 av. |153|49 |20 | 23.1^3| 13.4 |11.2^3 |7.6^3|5.2 |3.7 |5.3 | 9.6^3
min.|140|44 |20 | 22.4 | 12.8 |10.8 |7.3 |5.0 |3.4 |5.1 | 9.2
max.|164|56 |20 | 24.2 | 13.6 |11.4 |7.7 |5.3 |3.9 |5.5 | 9.8
*Superior numbers denote the number of individuals averaged.
_Measurements_.--External and cranial measurements of adults are given
in table 1.
_Remarks_.--Morphologically _C. g. stikinensis_ shows greater
resemblance to _C. g. solus_ of Revillagigedo Island, than to the
geographically adjacent subspecies _C. g. wrangeli_ and _C. g. phaeus_.
Possibly the original stock of _C. g. solus_ was rafted to
Revillagigedo Island from the Cleveland Peninsula.
_Specimens examined_.--Total, 29, all in the Museum of Vertebrate
Zoology, University of California, distributed as follows: British
Columbia: Stikine River at Great Glacier, 22; Stikine River at
Flood Glacier, 3. Alaska: Bradfield Canal, 1; Helm Bay, 2.