56 



BULLETIN: MUSEUM OF COMPAEATIVE ZOOLOGY. 



specimen, No. 6S44, lias but two, instead of the usual four, lower incisors. This 

 bat is closely related to the species described by Miller as jobensis, from the 

 island of Jobie, northwestern New Guinea, if, indeed, the two are not identical. 

 I have seen no specimens from Bengal, the type locality of C. plicatus ; but 

 Miller supposes the Indian animal to be larger, as " both Dobson and Blanford 

 give the length of forearm in N. [= Chaerephoti] plicatus as 50 mm. (1.95 in.), 

 while in the six N. jobensis it ranges from 44 mm. to 46 mm." (Proc. Biol. Soc. 

 Washington, 1902, vol. 15, p. 246.) In our Javan series the forearm measure- 

 ment varies between 44 and 49 mm. 



Molossops planirostris Peters. 



A skin and skull from near Panama are in the collection, thus establishing the 

 presence of this species within the limits of Middle America. This is the specimen 

 recorded previously as Promops nanus (Bull. Mus. Comp. Zool., 1906, vol. 46, 

 p. 212), a mistake for which I am largely responsible. A comparison with mate- 

 rial kindly loaned by the U . S. National Museum, however, leaves no doubt as to 

 the identity. 



Nyctinomus brasiliensis I. Geoffkot. 



The collection contains a large series of Nyctinomus, both skins and alcoholics, 

 from Texas and Mexico, as well as other spirit specimens from Buenos Ay res and 

 Patagonia. I am unable to discover tangible differences between the alcoholic 

 specimens from the two extremes of the range, and hence follow Miller and Rehn 

 (Proc. Boston Soc. Nat. Hist., 1901, vol. 30, p. 271) in applying Geoffrey's name 

 to the Mexican and Texan bat, rather than that of Saussure (mexicanus) employed 

 by Elliot. The following measurements are of Argentine and Texan specimens : 



MEASUREMENTS OF NYCTINOMUS BRASILIENSIS. 



The slightly shorter fingers of the Patagonian bats may be due in part to age, 

 as the specimens seem not fully adult, and in part to their hard and shrunken con- 



