16 PROCEEDINGS OF THE NATIONAL MUSEUM VOL.78 



1902. Nyctinomops depressus Miller, Proc. Acad. Nat. Sci. Philadelphia, p. 



393, September 12, 1902. 

 1902. Nyctinomops macrotis Miller, Proc. Acad. Nat. Sci. Philadelphia, p. 



393, September 12, 1902. 

 1902. Nyctinomops affinis Miller, Proc. Acad. Nat. Sci. Philadelphia, p. 393, 



September 12, 1920. 

 1902. Nyctinomus nevadensis Miller, Proc. Biol. Soc. Washington, vol. 15^ 



p. 250, December 16, 1902. , 



1914. Nyctinomus aequatorialis J. A. Allen, BuU. Amer. Mus. Nat. Hist., vol. 33^ 



p. 386, July 9, 1914. (Ecuador.) 



1923. Tadarida depressa Miller, List N. Amer. Recent Mamm. 1923, BuU. U. S. 



Nat. Mus., 128, p. 86, April 29, 1924. 



1924. Tadarida nevadensis Miller, N. Amer. Recent Mamm. 1923, Bull. U. S. 



Nat. Mus., 128, p. 87, April 29, 1924. 

 1924. Tadarida macrotis Miller, N. Amer. Recent Mamm. 1923, Bull. U. S. 

 Nat. Mus., 128, April 29, 1924. 



Type locality. — Cuba. Collected by W. S. MacLeay in the interior 

 of the Island of Cuba, where it was found in a hollow tree. Type 

 specimen presumably in the British Museum. 



Geographic distribution. — Brazil, Ecuador, Colombia, Cuba, Jamaica, 

 Mexico, Arizona, California, and Iowa. 



Diagnosis. — Size largest of the genus in the Western Hemisphere. 

 Greatest length of skull, 22.2-24,0 mm.; maxillary tooth row, 8.2-9.5 

 mm.; forearm, 58.2-63.8 mm.; tibia 16,4-18,0 mm. The larger size 

 makes it at once separable from any other American form of the genus. 



Measurements. — For detailed measurements see tables, pages 23 

 and 27, 



Specimens examined. — Fifty, from the following locaUties: Brazil: 

 Ypiranga, 1 skin. Ecuador : Manvi Chone, 1 skin type of N. aequa- 

 torialis. Colombia: Tagauga, 1 skin type of Promops affinis. Cuba: 

 2 alcoholics. Jamaica : 30 alcoholics. Dominican Republic : 7 alco- 

 holics. Lower California : 4 alcoholics. Arizona : 1 skin. California : 

 no exact locality, 1 alcohoUc. Nevada : 1 alcoholic. Iowa : 1 skin. 



Remarks. — Because of the small number of specimens from the 

 mainland, it has been very difficult to come to a conclusion on the 

 status of the several described forms of this large Tadarida. A 

 considerable number of specimens have been examined from the West 

 Indies, but the larger part of them were immature. Only three 

 skins have been obtainable from South America and with two of these, 

 the types of A^, aequatorialis and Promops affinis it has been impossible 

 to take measurements of the tibiae, while it also appears that the 

 forearm of N. aequatorialis has been broken off at the elbow, so that 

 the forearm measurement may not be truly representative, I am 

 unable to find any characters of differentiation in the skulls, 



Dobson in his Catalogue of the Chiroptera in the British Museum, 

 1878, lists specimens of N. macrotis from Cuba, Brazil, and Paraguay, 

 Two years previous, 1876, in Proceedings Zoological Society of 

 London, he describes a new form from Surinam, N. megalotis, basing 



