LASIURUS. 19 



First and second premolars distinct ; first smaller than second, 

 which leans toward the canine, and its axis, if produced, would 

 touch it. Other molars as usual. 



I regret that my material will not allow me to decide the in- 

 teresting question whether this species really occurs in South 

 America. My most southern specimens come from the Rio 

 Grande, Texas, and Cape St. Lucas — no difference being observed 

 between them and the more northern individuals. 



Dr. J. E. Gray (Zool. Proc, 1862, 143) gives a notice of a 

 Lasiurian bat from the Sandwich Islands which he asserts to be 

 the L. Grayii, Tomes. This fact is of interest, since it proves 

 that the same species may have a distribution from the Sandwich 

 Islands to Chili, where Mr. Tomes' specimen was collected. 



According to Dr. Gray, loc. cit., there is a specimen labelled 

 L. Grayii, Tomes, in the British Museum, from Nisqually, Straits 

 of Juan de Fuca. I have, however, never met with any bat in 

 North America answering to Mr. Tomes' description. 



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