Allen — Two Undescribed West Indian Bats. 169 



portoricensis. Color of upperparts slightly darker than in the latter, the 

 bases of the hairs almost without the silvery appearance seen in the 

 Jamaican and Cuban races. Skull very small in proportion compared to 

 that of portoricensis. 



Description. — Color above, uniform dark hair brown, the hairs at the 

 nape with silvery bases; below drab, becoming much darkened on the 

 abdomen where the hairs are dark brown basally. 



Compared with other races of parnellii, all the proportions are much 

 reduced so that it is markedly smaller even than portoricensis, with 

 noticeably slender narrowed ears and weak thumbs. 



The skull is small, with rather more abruptly elevated forehead as com- 

 pared with the other races, the end of the muzzle is less upturned, and 

 the postpalatal notch is less narrowed anteriorly. The teeth are quite as 

 in portoricensis except for their smaller size; the small second lower pre- 

 molar stands more nearly in the tooth row than it does in the Jamaican 

 and Cuban races, in which the first and third lower premolars tend to 

 meet exteriorly so as to crowd the second tooth inward. 



Measurements. — The forearm of the type measures 50.5 mm. ; the col- 

 lector's measurements are: total length, 80 mm.; tail, 22; hind foot, 12. 



The skull of the type shows the following dimensions (with those of a 

 specimen of portoricensis in parentheses) : greatest length, 19 mm. (20.5) ; 

 basal length, 16.5 (18.2); palatal length 9 (10.4); width outside m 3 , 6.5 

 (7.5); interorbital constriction, 3.7 (4); zygomatic width, 10.1 (11.5); 

 mastoid width, 9 (10) ; upper tooth row (front of canine to back of m 3 ), 8 

 (9) ; lower tooth row (front of canine to back of m 3 ), 8.5 (9.5). 



An alcoholic specimen (16,600 M. C. Z. ) measures as follows (with, in 

 parentheses, the measurements of a specimen of portoricensis) : forearm, 

 49 (50) ; tibia and foot, 26 (28); ear from meatus, 17 (19); third finger, 

 metacarpal, 41 (42.5) ; first phalanx, 9 (9.3) ; second phalanx, 14 (14.5). 



Specimens examined. — Three, all from the type locality. 



Acknowledgments are due the United States National Museum and the 

 Field Museum of Natural History for the loan of important specimens. 



References to Literature. 



Allen, G. M. 



1916. A third species of Chilonycteris from Cuba. Proc. New England 

 Zool. Club, vol. 6, pp. 1-7, plate 1. (C. torrei described.) 

 Elliot, D. G. 



1905. Descriptions of apparently new species and subspecies of mam- 

 mals from Mexico and San Domingo. Proc. Biol. Soc. Washington, 

 vol. 18, pp. 233-236. (Phyllonycteris [=Erophylla] santa-cristobal- 

 ensis described. ) 

 1907. A catalogue of the collection of mammals in the Field Columbian 

 Museum. Field Col. Mus., Zool. Ser., vol. 8, viii4-694 pp. (Corrects 

 spelling of santa-cristobalensis to sancta-cristobalensis.) 



