DE WINTON’S FIELD MOUSE 551 
DIMENSIONS IN MILLIMETRES—continued :— 











Head and | Tail (with- Ceitiea Ear. hide 
body. out hairs). claws). grammes. 
SexcALLy MATURE FEMALES :— 
Caught and measured by L. E. Adams at 
Reigate, via i 
1. 80th Dec. 1904 100 100 23 55 28 
2. 24th Aug. 1906 85 98 24 ae 22 
3. 22nd July 1909 90 104 22 a5 # 
4. 10th Oct. 1911 94 108 23 16 312 
Ludlow, Salop— 
5. 1st March 1913 105 107 24 17 313 
Herefordshire (W. E. de ® Winton, Zoologist 
1895, p. 370) 108 108 24 18 
Do. do. 110 115 23 18 
Do. do. : 7 115 112 24 18 
Norton, Worcestershire (R. 1s Pocock, 
Zoologist, 1901, p. 423), inspring . 108 114 22 19 
South Herefordshire ee Ae Bamey)i. 28th 
March 1914 101 100 23 15°5 
Average of 10 . . . 101°6 106°6 23°2 16°5 
Graftonbury, Hereford: average and ex- 
treme measurements of 6 adults of both 
sexes; Miller, Cataloguwe':— e op a v7 
Minimu 102 
Mazina 115 115 25 19 
Average . r - 5 5 108°6 107°5 24:1 17°6 
1 6 embryos. 2 Suckling. % Perforate; practically mature. 
Habits :—The general habits of this mouse are, no doubt, like those 
of sylvaticus. 
Thus Mr Adams says that it “ occasionally frequents buildings” 
Laver informed us of four 
that were killed in a store- 
room at Colchester in 1904; 
Mr G, Dalgleish (2 Uz.) de- 
scribes three females caught 
in a storeroom in his house 
at Midhurst, Sussex, early 
in November 1910, and he 
states that in the winter of 
£909 a number were taken in 
an outhouse, where potatoes 
were stored, at Godalming, 
urrey. lastly, Mr J: EF 
Davison sent three caught 
Not infrequently, however, it takes up an abode in houses. 
- Dipti: 

Vagina 
FIG. 88.—A. f. wintoni: DISSECTION OF UTERUS, 
SHOWING SUPERFETATION, (L. E. Adams.) 
on 26th February 1913 in a ground-floor room, used as a larder, in 
his house at Ludlow, Shropshire ; 
also caught this mouse, together with Mzcrotus hirtus, in the cellars; 
that in one part of his stables wzztonz abounded, while next door, and 
he mentions (zz “7.) that he had 
