66 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
so this character falls to the ground. And to finally settle the question of the 
actual existence of a species combining cheek-pouches with a long tail, we 
will introduce the following table.* 
TABLE XII.—Fresh measurements of thirty-one specimens of HESPEROMYS ‘“myoides”’ from Arctic America. 
[All these measurements are from specimens in the flesh, except the seventh column, the feet being measured dry.] 
Med 4531 
Nose to— ‘Tail to— 3 
= 
ad 
Locality. Collector. 3 E/4 i eS Remarks. 
* Pee |e |e Sie 
2 . Pyles ise feral e ecb ilies 
8 yi £ 7) |S i) s\iti2 a 2 
5 4 3 B|e@|)s|¢ | a] Ble 
A |n A AlAICIB IAA /aI1A]e 
1260. 
4514| 9 |May 22 Bea WR80 es 
4520 | 9 | Mar. 22 3. 15/0. 75/0. 62/0. 55 
4528 | g | Mar. 16 3. 2. 90/0. 78|0. 70/0. 55 
4512 | 9 } Apr. 5 3. 85/3. 0213. 25/0. 82). - - 
4517 | 9 |May 6\|... - -[4. 25)3. 10/3. 30/0. 7 as 
4527 | g | Mar. 22]-- 3. 90/3. 35}3. 50/0. 80/0. 85)0. 63 
4526 | 9 | Mar. 22)... 3, 50)/2, 80/3. 00/0. 80/0. 75/0. 60 
4515 | 9 | Apr. 22 3. 00/2. 10}2. 25]0. 7]. --.].. 
4521 | df | May 5)... - -}4. 00}2. 70}2. 90/0. 75}. .--|.--- 
4542 | 9 | Mar. 22]... 3. 30}2. 80/2. 900. 79)0. 60/0. 55 
4522) 9 | Mar. 22}... 3. 50}2. 90/3. 10/0. 80/0. 68/0. 55 
4555 | of | Mar. 31)... 3. 90 .--./0. 85)0. 800. 65 
4519 | gf |May 2).-- - |3. 60)3. 10)3. 25)0. el 
4523 | f | Apr. 27 - -|3. 25)2. 35]2. 50}0. 72}. --.|... 
4557 | gi | May 22).-- - ]3, 00)2. 20)2. 30/0. 76}. - st 
4511 | 9 | Apr. 10]... 5 3. 70)}2. 82/3. 00)0. 83). - - 4 
CEH) ee NSA A esc Weaeneseaccoooce posed) pssccecoase se (0. 60} 1, 05)1. 15)3. 6O}2. 85)3. 05)0. 77}. ---|--- 
4535.) Gy jisept, 6)}552.do UU. -. 2... R. Kennicott.----- (0. 60|0. $0} 1. 10|3. 80/3. 30}3. 55/0, 85|0. 85/0, 60] Cheek-pouch 0.40 to 
angle of mouth 
4540 | gf | Mar. 13]...-. 3. 00)2. SE/2. 88/0. 71).---|--- 
4554 | 2 | Sept. 1]... 3. 50/2. 70/2. 90/0. 75). - -. 0. 60 
o |Sept. 7/|..-. 3. 60/3. 00/3, 25/0. 80/0. 75]. - - 
4530 | 9 |Sept. 7|-.-- 3. 60}2. 90/3. 12/0. 780. 75}. - - 
4534 | g |Sept. 7 GO cpeceresoeccsose Seslilt) oscecsessneos (0. 60)0. 9Lt 1. 10)3. 60/3. 00/3, 20/0. 80)0, 80/0, 63) Cheek-pouch 0.42 to 
angle of mouth. 
4529 | g |Sept. 7|.--. 3. 00/3. 20,0. 80/0. 70)... 
4532 | 9 |Oct. 19]..-- 2. 80/3. 10/0. 78)0. 85}... . 
4534 | g |Sept. 6].... 2. 60)2. 85|0. 75/0. 75|0. 55+ Cheek-pouch 0.40 to 
anglos of mouth. 
Asal lecgeipeepte AulE-sedomecce -ceacoeee EepnlO i oeeeee se see ---.|[----[L. 15]3. 40)2. 50)2. 75/0. 78). ..-].-- 
A536) |"co) | POpts | 10) U0 eee eae (erAG Wires SS ceeeoes (0. 63/0. 9F| L. 10/3. 70/3. 00/3. 25/0. 80/0. 80|0. 55) Cheek-pouch 0.40 to 
angle of mouth. 
4538 | 9 | May 15] Fort Resolution..--. pect) cena sandas 0. 6O}1. 00) 1. O&)3, 40/2, 60)2. 87/0. 78}. .--].-- 
{eae eo eI RAN accel em Oe reiorcr malate te 55 5/0. 75 3 
4539 | Q | Feb. 15 | Fort Liard....-..... g 76)... = 
PAGED RY [I otososen cc sasdrcootel lhe scocosseedsags502 0. GOJO. 95} L. 12)3. 64/2. 70/3. OF 0. 74/0, 7510. 58 
Mini maiMM l)< ae ce ee ese sonia e |Smaeeimeterine aieieniee 0, 65/1. LE|L. Wi 4. 25)3. 35/3. 500. 85/0. 87/0. 65 
Wi Geet rep hari SSR E EA Be ee Se eee eee Be 0, 55/0. 90) L. OF )3. 00/2. 10/2. 25/6, 700. 60/0. 55 
* This Arctic series is simply a part of the Arctic series introduced farther on. It represents the 
variety sonoriensis, and is only brought in here to show the matter of the cheek-pouches. We have 
only to remark further, iu this place, that the Arctic series averages larger than United States specimens, 
and has shorter feet and ears, as well as shorter tail. 
