190 PROCEEDINGS OF THE ACADEMY OP [Feb., 



might be expected from the distribution of these forms ; but that the 

 three types are entitled to recognition will generally be admitted on 

 examining representatives of the several races. 



Specimens Examined. — Five, one skin and four alcoholic specimens: 



Haiti. (A. M. N. H.) [1.] 



San Domingo. (A. N. S. P.) [4.] 



Chilonycteris macleayii inflata n. subsp. 



1878. Chilonycteris Mac-Leayi Gundlach (not of Gray), Anales Soc. Espan. 

 Hist. Nat., VII, cuad. I, p. 140. [Bayamon and Mayaguez, Porto Rico.] 



Type. — Adult cJ^ ; Cueva di Fari, near Pueblo Yiejo, Porto Rico. 

 No. 6,234, A. N. S. Phila. March 19, 1900. Collected by Drs. C. W. 

 Richmond and L. Stejneger. 



Distribution. — Apparently the whole island of Porto Rico, specimens 

 from a cave near Pueblo Viejo and Mayaguez having been examined. 



General Characters. — ^This form is distinguished from true macleayii 

 by the short and bullate rostrum of the skull and the rather expanded 

 zygomata. 



Head, limbs and fur very much as in macleayii, l3ut the distal half of 

 the ear is shorter and broader, the apex more blunt, and not so falcate, 

 the external margin being straighter. 



Color. — Rufous phase i^" above rather dark cinnamon; below wood- 

 brown, the fur basally mummy-l^rown. Brown phase: above bistre, 

 the short hair on the nape and sides of the neck silvery-wliite, the latter 

 also apparent in the general bistre tint, caused by scattered unicolored 

 hairs and also by the silver}^ median bands of the darker hairs ; below 

 with the hair basally bistre, apically drab, becoming wood-brown on 

 the chin and throat and whitish on the abdomen. Membranes dull 

 blackish. One specimen examined appears to be intermediate between 

 the two phases. 



Skull. — Similar to that of C. macleayii, but with the rostrum shorter 

 and broader, the brain-case higher and the zygomata more expanded. 

 The rostrum is considerably shorter than the brain-case in length and 

 the lateral margins are rather strongly and evenly arcuate ; brain-case 

 strongly inflated and elevated above the rostrum a distance more than 

 equal to the height of the rostrum at the anterior margin of the orbits. 

 Palate considerably broader than in macleayii. The skulls of females 

 of rnacleayii are, of course, very similar to the males of m. inflata in 

 general appearance, but they lack the extreme characters of the rostrum 

 and the high brain-case is pecuhar to inflata. The skull of the female 

 of inflata, how^ever, is practically indistinguishable from that of 

 macleayii, though the latter is somewhat smaller. 



'" Type in this phase. 



