On Bats from Formosa. 235 



XXV.— A Collection of Bats from Formosa. By AUGUSTA 

 AuxBACK-CHRlSTlE-LiNDE,ZootomicalInstitute,University 



of Stockholm. 



The Zootomical Institute lately received from Mr. Hans 

 Sauter a collection of bats from Formosa which Professor 

 Leche submitted to me for identification. 



As there are in this collection a new species of Myotis and 

 other bats but little known or not before recorded from this 

 island, I hope the following list will be of some interest. 



Myotis taiwanensis, sp. n. 



6 <$ , 9 ? . Takao, Anping, Tainan, Formosa ; July, 

 September, October, 1906-1907. 



Teeth. — The upper incisors are almost equal in size. The 

 outer cusp of the bifid inner incisors is decidedly shorter than 

 the inner. pm 2 (middle upper premolar) is small, but 

 distinctly visible from without, and situated in the tooth-row ; 

 p l and p 3 are therefore quite separated. 



In the lower jaw pm 2 is reduced in size, but not internal to 

 the tooth-row. 



Ear. — Inner margin of the ear-conch straight below, 

 faintly convex above, with a slight flattening below the tip. 

 Outer margin not very deeply emarginated, straight above, 

 terminating opposite the base of the inner margin in a lobe. 

 The tip of the ear is obtusely rounded. Ears shorter than 

 the head; their extremities do not reach the end of the 

 muzzle wdien laid forwards. 



Tragus straight, of about the same shape as in Myotis 

 daubentonii ; the inner margin straight, the outer faintly 

 convex ; somewhat narrower towards the tip, which is 

 rounded and reaches the middle of the inner margin of the 

 ear-conch. 



Colour (so far as can be determined from preserved 

 specimens). — Fur yellowish brown above, dark brown with 

 white extremities beneath. Interfemoral membrane and ears 

 light brown, wing-membrane dark brown. 



Measurements. — Myotis taiwanensis is of about the same 

 size as M. adversus. 



6. $. 

 mm. mm. 



Skull, total length to front of incisors , loo 



Leiisth, head and body 49 



„ tail 38 39 



head 18 



