1902.] NATURAL SCIENCES OF PHILADELPHIA. 40o 



Dermanura phaeotis sp. nov. 



2^^^e._Adult female (skin aud skull), No. 108,176, Umted States 

 National Museum (Biological Survey collectiou). Collected at 

 Chichen Itza, Yucatan, February 10, 1901, by E. W. Nelson and 

 E. A. Goldman. Original number, 14,537. 



Characters. —Size and color as in Dermanura rava, but ears 

 much darker and without the whitish border. Skull with broader, 

 flatter rostrum than in the South American form. 



Form, Color, etc—In general appearance this bat so closely 

 resembles Demianura rava that no special description is necessary. 

 Ears.— In form the ears are similar to those of Dermanura rava, 

 but they appear to be slightly larger, and in color they are a uni- 

 form darker brown, without trace of the whitish edgmg. 



Skull and Teeth. -The skull closely resembles that of Dermanura 

 rava but the rostrum is broader and flatter and the median back- 

 ward extension of the bony palate is wider. Molar teeth appar- 

 ently a little narrower than in the related species. 



Measurements.-Extevn-A measurements of type: Tibia, U; 

 foot, 9(8); forearm, 37 ; thumb, 9.6 ; second digit, 31 ; third digit, 

 78 ;' fourth digit, 62 ; fifth digit, 57. 



Cranial measurements of type: Greatest length, 19; zygomatic 

 breadth, 11.6; mastoid breadth, 10. 

 Specimens Examined.— One, the type. 



Eemarks.— Dermanura phceotis is closely related to D. rava, but 

 its characters are not closely approached by any of the ten speci- 

 mens of the latter. 

 Vampyrops fumosus sp. nov. 



Twe -Adult female (skin and skull), No. 105,o30, United 

 States National Museum. Collected on the Purus river, Brazil, 

 March 24, 1901, by J. B. Steere. Original number, 24. 



Characters.— -ReMed to Vamjyyrop^ "l/""««^« Pe^^^'^ ^"'^ ^ ' ':"'" 

 salis Thomas, but size larger and color paler than m either. I ace 

 stripes barely indicated. Dorsal line present, but very faint. 



CWor.-General color broccoli-brown, slightly darker on head 

 and nape, slightly paler on shoulders and sides of neck, the un.ler 

 ■ parts washed with ecru-drab. From noseleaf to ear can be traced 

 a faint pale stripe, not different in color from the surroun<hng parts. 

 Doi-sal line whitish, extending from neck to rump. It is i)lainly 

 visible when the fur is smooth, but a slight disarrangement of the 



