356 MR. OLDP^IELD THOMAS OX [NoV. 28, 



would seem to be widely spread over Soutliern Hondo, S. of 35" N., 

 and to be common in both Shikoku and Kiushiu, its distribution 

 thus corresponding with that of so many Japanese animals. There 

 does not appear to be any tangible difference between the speci- 

 mens fioni the Izu Peninsula, from the type locality, Kobe, or from 

 the two southern islands, Shikoku and Kiushiu. In each place, 

 however, there seems a good deal of variability, both in colour, 

 which ranges from a light russet-brown to a dark " vandyke- 

 brown," and in tooth-pattern. 



In the latter respect the following description applies to the 

 majority of the specimens, the type being among the minority ; 

 but there is eveiy gradation between the two. 



M" with the first outer and inner re-entrant angles subequal, 

 the latter being much deeper in the type ; second and third 

 spaces partially, and in some cases fully, separated, not continuous 

 as in the type ; fourth space not always separated off" from the 

 posterior C ; head and tail of the strongly developed, with a 

 deep re-entrant angle between them, as deep as the one before the 

 head, the third internal projecting angle of the tooth ; there are, 

 therefore, three subequal internal re-entrant angles, while in the 

 type there are two deep ones only (the second deeper than is 

 shown in my figure and running more directly backwards), the 

 third being represented by a quite inconspicuous concavity. 

 Similarly on the outer side of the tooth the third concavity is 

 usually far more marked than in the type. As a result of these 

 variations in the depths of the re-entrant angles, the whole tooth 

 appears more bilaterally symmetrical than in the figured specimen. 

 Below, the spaces of m^ are usually less uniformly coalesced with 

 each othei', and the slight antero-internal concavity of the front 

 trefoil is often developed into a well-defined i-e-entrant angle, so 

 that there are foui' inner re-entrant angles to the tooth instead of 

 three. 



The measurements (in mm.) in the flesh of two Kiushiu adults 

 ai'e as follows : — 



(S . Head and body 100 ; tail 50 ; hind foot 17*5 ; ear 11. 

 2. „ „ 103; „ 49; „ 18-0; „ 12. 



With regard to the number of the mammje, there appear to be 

 only 6, two inguinal pairs and a posterior pectoial pair, no trace 

 of an anterior pectoral pair being discoverable. But the exami- 

 nation has only been made on skins, none of them killed in the 

 breeding-season, and must therefore not be looked on as final. 



" Lives both in forest and on grassy hill-sides." — M. P. A. 



39. Lepus timidus ainu Barr.-Ham.* 



tS . 129. Noboribetsu, near Moruran, Hokkaido. 



In the white winter pelage. 

 Dimensions in the flesh : — 

 Head and body 510 mm. ; tail 35 ; hind foot 142 ; ear 65. 



* P. Z. S. 1900, p. 90. 



