ON A COLLECTION OF JAPANESE AND FORMOSAN MAMMALS. 



Nos. 174-189 are young examples in various stages of growth. 



I have not been able to obtain adult male of the subspecies at 

 the same locality as the type specimen, but the late Mr. Namiye (I.e.) 

 has examined and recorded two adult males of evidently the same 

 form, collected at Chichibu, Prov. Musashi. He has given comparative 

 measurements of those specimens with the same number of European 

 examples as follows : 





Taü 



Head 



Ear-conch 



Tragus 



Forearm 



Thumb 



Third 

 finger 



Fifth 

 finger 



Tibia 



Foot and 

 claw 



X 



o3 



Locality 



Measured 

 by: 



I 



mm. 



42 



mm. 

 21 



ir.m. 

 II 



mm 

 6 



mm. 

 47 



mm. 

 12 



mm. 

 82 



mm. 

 58 



m n. 



17 



mm. 



9 





Chichibu, 

 Musashi. 



Mr. 



Namiye 



2 



40 



20 



12 



5 



48 



IO 



82 



57 



17 



9 





99 



99 



3 



So 



23 



11 



6 



5 2 " 



IO 



93 



59 



18 



10 





Marseilles, 

 France 



99 



4 



50 



22 



1 1 



5 



S3 



IO 



95 



58 



18 



9 





99 





Mr. Namiye pointed out that, whereas the typical Nyctalus 

 noctula from France is not much smaller than the Japanese large 

 noctule bat, Nyctalus aviator Thos., the Japanese form of that species 

 is decidedly so. 



According to Dobson (I.e.) the male of typical (European) N. 

 noctula should measure as follows : Head and body 3 inches (76.5 

 mm.), tail 2 inches (51 mm.), head 0.9 inch (23 mm.), ear 0.75 in. 

 (19.5 mm.), tragus 0.25 in. (6.5 mm.), forearm 2 in. (51 mm.), thumb 

 0.3 in. (7.5 mm.), 2nd finger 3.7 in. (94 mm.), 4th finger 2.1 in. (53 mm.), 

 tibia 0.75 in. (19.5 mm.), foot and claw 0.45 in. (11.5 mm.). 



In some adult female specimens of the Japanese form the fur of 

 the dorsal and ventral parts of body is of an almost uniformly choco- 

 late-brown colour, while in others the hairs are tipped with brownish 

 buff. In immature specimens the fur is otter-brown or even blackish, 

 without a tinge of a chocolate colour, the hairs in the posterior half 

 of the dorsal and all ventral parts of body being distinctly tipped 



