974 ME. OLDFIELD THOMAS OS [DeC. 15^ 



Skull of type — condylo-basal length 41 mm. ; basilar length 36 ;. 

 zygomatic breadth 22-8 ; nasals 15-7; interorbital breadth 5*4; 

 palatilar length 17-5 ; palatal foramina 7*2 ; length of upper molar 

 series 5-1. 



Another fully adult skull only measures 37-3 mm. in condylo- 

 basal length, while an example of true triton reaches 39 mm. 

 The type skull of 0. triton^ which has worn teeth, is only 33 mm. 

 in the same measurement, so that members of this group evidently 

 vary very much in the size that their skulls may attain to. 



Mab, of type. 12 miles N.W. of Ko-lan-chow, Shan-si. 7000'.. 



T2/2Je. Old female. B.M. No. 9.1.1.123. Original number 

 1945. Collected 3 June, 1908. 



This is evidently a pale inland dry-country form of the coast 

 C triton. 



" This large Hamster is rare. They usually reside under bushes 

 at the edge of some farmfield from which they take their food.. 

 I have sometimes found green leaves in their pouches, but more 

 often they carry some grain. Their clean-cut burrows usually 

 descend vertically into the earth. 



" Chinese name, ' Pan-Tsang-er.' "' — 21. P. A. 



21. Cricetulus axdersoxi Thos. 



6 . 1(360, 1664. 2 ■ 1658, 1661, 1665. 30 miles W. of Fen- 

 chou-fu, Shan-si. 4500'. 



c?. 1667, 1668, 1671, 1672, 1682, 1691, 1723. ?. 1669, 

 1690, 1692, 1700, 1711, 1712, 1721. Yen-an-fu, Shen-si. 3000- 

 3800'. 



c?.1883. $.1876,1879,1884. Pao-teh-chow, 8han-si. 3500'. 



S . 1889, 1903, 1904, 1905, 1906, 1914, 1922, 1923, 1924, 1925.. 

 $. 1885, 1886, 1890, 1899. Mountains 12 miles N.W. of 

 Ko-lan-chow, Shan-si. 7000'. 



2 . 1961. Ning-wu-fu, Shan-si. 6000'. 



There is surprisingly little difference either in colour or length 

 of fur between these summer specimens and those obtained by 

 Mr. Anderson the previous winter, when he first discovered this 

 well-marked little species. 



" I consider the grey dwarf Hamster the most abundant mammal 

 of Shan-si and Shen-si. It was common at all our collecting 

 grounds within these provinces, with the single exception of Yu- 

 lin-fu, where it seems not to exist. "We failed to find it in Ordos 

 also."— il/.P.^. 



22. CRiCExrLrs griseus M.-Edw. 



2 . 1815. Yu-lin-fu, Shen-si. 4000'. 



23. Cricetulus bedfordi^e. 



Thos. Abstr. P.Z.S. 1908, p. 45 (Dec. 15). 

 6. 1757, 1758, 1773, 1774, 1775, 1801, 1805, 1806, 1808,. 

 1823,1831,1842,1843,1844, 1854, 1860, 1861. $. 1731 (in 



