1898.] NATURAL SCIENCES OF PHILADELPHIA. 321 



thumb, $ , 16.4, 9 , 18 ; second finger, $ , 51, 9 , 51 ; third finger, S , 

 100, ? , 101 ; fourth finger, 2 , 78, 9 , 73 ; fifth finger, S , 79, 9 ,78 ; 

 ear from meatus, $ , 38, 9 , 33 ; ear from crown, $ , 32, 9,27; width 

 of ear, £ , 25, 9 , 23 ; tragus (from posterior base) to posterior tip, 

 $ , 20, 9,19; tragus (from posterior base) to anterior tip, $ , 11.4, 

 9,10; nose leaf from edge of upper lip, $ , 12.4, 9,12; greatest 

 width of nose leaf (2 mm. below tip), $ , 7.4, 9 , 7.8. 



Skull : basilar length, $ , 18 ; greatest length, $ , 24.6, 9 , 25 ; 



length of bony palate in median line, $ , 6.2 ; zygomatic breadth, $ , 



15 ; breadth across postorbital processes, $ , 5.8, 9 , 5.6 ; upper tooth 



row, $ , 10, 9 , 9.6 ; mandible, $ , 17.8, 9 , 17 ; mandibular tooth row, 



^,11.6,9,11.4. 



Tylonycteris pachypus (Temminck). 



Twenty-eight specimens in formalin. 



The genus Tylonycteris, although currently united with Vespertilio 

 (— " Vesperus ") appears to be perfectly valid. It may be defined as 

 follows : Dental formula (as in Vespertilio), i, ^ 2 ; c, -^ ; pm, ~i ; 

 m, iLz 3 — 32 ; skull very broad and flat, with greatly reduced rostrum 

 and no trace of sagittal crest; ball of thumb and sole of foot pro- 

 vided with broad, disc-shaped pads. 



Four specimens from Buitenzorg, Java, agree in size with those 

 from Trong, but in color they are much lighter. This difference 

 may be due to alteration in color resulting from long immersion in 

 alcohol. The Javan specimens were collected by G. B. Ferrari, and 

 have been in the National Museum since 1890. 



Scotophilia kuhli Leach. 



An adult female and three young. 



The genus represented by this bat is so closely related to the 

 North American Nycticeius that it is doubtful whether the two can 

 be regarded as distinct." The characters pointed out by Dobson, 

 however, appear to be of nearly as much importance as those separ- 

 ating Nycticeius and Rhoge'essa. 



My otis muricola (Hodgson). 



Four specimens in formalin. These are chiefly interesting from 

 the fact that they formed part of the meal of a nocturnal, bat-eating 

 hawk, Machcerhamphus alcinus. 



Kerivoula minuta sp. now 



Type. — Adult $ (in alcohol), No. 83,547, Trong, Lower Siam, 

 September, 1896. Collected by Dr. W. L. Abbott. 



