ON A COLLECTION OF JAPANESE AND FORMOSAN MAMMALS, 



8. Nyctalus aviator Thomas. 



Three specimens : one of which is a female captured in Tokyo, 

 Sept. 1906; the second a female (?) obtained in Hondo and without 

 date ; the third a male obtained along R. Tamagawa in the neighbour- 

 hood of Tokyo, Nov. 5, 191 1. 



9. Nyctalus noctula namiyei, subsp. nov. 



Vespertilio uoctula (nec Schreber), Teram., Faun. Jap. Mamm., p. 15 (1842); 

 I'esperugo noctula (nec Schreb.), Dobson, Monogr. Chiropt. Ind. Mus., p. 88 (1876); 

 Namiye, " Dôbutsugaku Zasshi " (Tokyo Zoological Magazine), Vol. I, p. 256 (1889) ; 

 Nyctalus noctula (nec Schreb.), Aoki.. Annot. Z00L Japon., Vol. VIII. p. 282 (1913). 



Is ad. (type of the subspecies). Similar to N. noctula noctula 

 (Schreber), but easily distinguishable from it by much shorter tail, fore- 

 arm and third finger. Length of head and body also distinctly shorter. 

 General colour of upper and lower parts much darker than in the 

 typical form, being nearly uniformly dark chocolate-brown instead of 

 dark yellowish-brown ; head and hind neck somewhat paler brown. Fur 

 of upper back and of lower parts tipped with buffy ; chin and upper 

 throat as well as sides of lower abdomen brownish buff. 



The type specimen (No. 168) was collected by me Aug. 3, 1918, 

 on a sea rock called Otsukuejima, on the coast of Prov. Chikuzen. 



Measurements of six adult females, nine young males and seven 

 young females as follows : 



