382 MURIDAZ—CRICETIN A 
[Sub-family Cricetine.’ 
HAMSTERS? AND WHITE-FOOTED MICE. 
This large sub-family is specially characteristic of both 
Americas, where it almost certainly originated, but occurs also 
from Eastern China to Central Europe and in South Africa. 
It is first known from the lower Eocene of North America 
(Eumys, Leidy, 1857). In the lower Oligocene (Quercy) of 
Europe it is represented by four species of Crzce¢odon (Schlosser, 
Paleontographica, xxxi., 1884, 96-97), some of which survived 
in Germany and France until the middle Miocene (see 
HO a2 
— $22 
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FIG. 52,—RIGHT UPPER CHEEK-TEETH a 
OF Cricetus runtonensis, from the Pliocene 
of West Runton, Norfolk (crown view, 
magnified). From Geo/. Mag., March 
1909, 111, by kind permission of Dr 
Henry Woodward and E, T. Newton. 
FIG, 53.—CHEEK-TEETH OF Phodopus san- 
Jordi, from the Pleistocene of Hutton 
Cave, Somersetshire; a, left upper; 4, 
right lower (crown view; six times life 
size ; after Sanford). 
Forsyth Major, Geol. Mag., August 1899, 372), but have not 
been identified from Britain. Cvzcetus (Leske, 1779) itself is 
found first in the middle Pliocene of Europe. One species, 
C. runtonensis (Newton, Geol. Mag., March 1909, 110-12) 
occurs in the late English Pliocene of the West Runton 
Upper Freshwater Bed; it was slightly larger than the 
recent C. cricetus, and presents some dental peculiarities. 
Another,’ of mouse-like size, from the Pleistocene of Hutton, 
Mendip Caves, Somerset, was referred by Sanford (Quart. 
1 Extinct in Britain, 2 A German word of uncertain origin. 
3 Perhaps near Pomel’s C. musculus, described (Catalogue Méthodigque, 32, 1853) 
from Bréche de Coudes, Allier, Central France. 
