s 



PROCEEDINGS OF THE NATIONAL MUSEUM 



M. r. redmani since the former is otherwise a larger bat than the latter. 

 Monophyllus r. clinedaphus can be separated completely from M. r. 

 redmani on the basis of greatest length of skull; the two races are also 

 virtually separable by length of maxillary toothrow. Other cranial 

 measurements (condylobasal length, postorbial constriction, mastoidal 

 breadth) show only slight overlap. Measurements of ear from notch 

 also show little overlap, with M. r. redmani being the larger. 



Monophyllus cubanus jerreus was based upon a series of 24 speci- 

 mens from the type-locality in extreme southwestern Haiti. Of the 

 type and paratypes, only two were skins, the balance being preserved 

 in spirits. Skins and skulls of Monophyllus from Hispaniola are still 

 uncommon in collections, but we have been able to examine one 

 paratype, two freshly taken topotypes, and another individual from 

 central Haiti. The characters of M. c. ferreus (in contrast to those of 

 specimens from Cuba) were stated (Miller, 1918, p. 40) to be "color 

 of upperparts clear hair-brown with a slight metallic gloss and with 

 no obvious trace of the buffy-brown or fawn-color characteristic of 

 the Cuban race. Measurements as well as cranial and dental characters 

 apparently identical with those of true M. cubanus." Our freshly 

 taken Haitian specimens do not differ appreciably in dorsal color 

 from older (1917-1928) material, but all Hispaniolan specimens are 

 darker (more blackish) than older (1902) specimens from Cuba. A 

 single Cuban M. r. clinedaphus collected in 1956 is comparable to 

 older Cuban specimens. The differences in color between bats from 



Table 1. — Mensural data for eight populations of Monophyllus showing extremes 

 and means (in millimeters) for five external measurements (bracketed figures = 

 number of specimens included in each calculation if different from N) 



