THE FIELD MOUSE 



SIS 



412), from Asia Minor, a small form in which the total length of the 

 skull is no more than 23 mm. ; A. s. witherbyi, Thomas {Ann. and Mag. 

 Nat. Hzsi.,Decemher 1902, 490), described from the mountains (5200 feet) 

 near Sheoul, Fars, southern Persia, a desert race with pale grey upper 

 side, pure white belly, and small teeth ; A. s. arzanus, Blanford (Journ. 

 cit., 1 88 1, 162), similar to the last in appearance, but with larger teeth ; 

 this mouse was described from Kohrud, between Ispahan and Teheran, 

 Northern Persia, where it was found at a height of 7000 feet ; Thomas 

 {Ann. and Mag. Nat. Hist., March 1909, 262) records it from the hills 

 round Samarkand, Turkestan ; A. s. tscherga, Kastchenko, is a small 

 sub-species with a relatively short tail, inhabiting the Altai Mountains, 

 Central Asia; A. s. pentax, Wroughton {Journ. Bombay N.H. Sac, 

 April 1908, 283), from the northern Punjab, is characterised by its 

 short tail and narrow skull ; lastly,^, s. wardt, Wroughton {op. cit., 282), 

 which occurs at a great elevation (9000-11,500 feet) in the mountains 

 of Kashmir, a drab-coloured form, is worthy of mention. The North 

 African forms are referred to two sub-species, A. s. hayi (Waterhouse) 

 from Tangier, Morocco, and A. s. algirus, Pomel. 



DIMENSIONS IN MILLIMETRES:— 



