50 Elliot A New Species of Monkey and Bat. 



those species by its white face, hands, and feet, and entirely white hind 

 legs. The hairs on top of the head, while rather long, can hardly be con 

 sidered as forming a crest, but lengthen gradually as they approach the 

 very lengthened occipital crest. While the white of the top of the head is 

 encircled by a dark line as in P. thomasi there is no central line in the 

 white so conspicuous in that species, but like that animal, there is no chin 

 tuft. The coloring of this form and its distribution is quite unlike that of 

 the two species above mentioned. The sex of this specimen was not 

 indicated, but from the relative measurements of the adult male and female 

 P. thomasi from northern Sumatra, I should judge it to be a female. 



Dermanura jucundum sp. nov. 



Type locality. Achotal, State of Vera Cruz, Mexico. Type No. 14,798. 



General characters. Similar to D. quadrivittatum, but with a much 

 smaller skull, and the nose behind the nose-leaf whitish. Wing mem 

 branes from ankles. 



Color. Two very conspicuous stripes from posterior base of nose-leaf to 

 top of head, and a very indistinct one on each side just in front of angle of 

 mouth going backwards towards ears but not reaching thefn, pure white. 

 Top of nose between the white stripes behind nose-leaf very pale brown, 

 but with so many white hairs intermingled with the brown that in certain 

 lights it appears nearly as white as the stripes. No stripes along spine. 

 Entire upper parts dusky brown, beneath paler. Wings, membranes and 

 feet, black ; ears brownish black. 



Measurements. Total length, 65; foot, 11.5; ear, 16; forearm, 43; tibia, 

 16. Skull: Occipito-nasal length, 17; Hensel, 13; zygomatic width, 11; 

 width of braincase, 9; height of braincase, 9 ; palatal length, 7 ; width be 

 tween last molars, 4 ; length of upper molar series, 5 ; length of nasals, 4 ; 

 width of rostrum, 6 ; length of mandible, 12 ; of low r er molar series, 5. 



But one specimen of this pretty little bat was procured by Messrs. Heller 

 and Barber among the great number secured at Achotal. It is allied to D. 

 quadrivittatum from South America, but is smaller, with a considerably 

 smaller skull. From D. cinereum, it differs in color and in the possession 

 of white streaks on head and face, these being absent in Gervais's species. 



