68 Allev — Notes on Bahama Bats. 



were clustered in most cases quite beyond our reach. One or two individ- 

 uals, however, I captured in my hands between the rafters and the roofing. 

 Both colonies were visited during the daytime and seemed much awake, as 

 a constant sharp chippering came from their quarter. Their musty odor, 

 characteristic of this family of bats, as well as their continual ill-natured 

 bickering drive the store-keepers to smoke them out at intervals. As 

 man)^ as 500 were said to have been smoked out and beaten down just 

 previous to our visit to the Great Abaco colony. Notwithstanding this 

 destruction, there seemed to be still a considerable remnant. One female 

 specimen taken July 7, at Marsh Harbor, contained a large foetus nearly 

 ready for birth. The bat colony at Little Abaco inhabited the space 

 between the sheathing and the roofing at the store of Mr. Roberts. On 

 the evening of July 10, shortly after sunset, I stationed myself outside the 

 building to observe the animals as they came forth for their nightly foray. 

 The squeaking and scrambling underneath the roof had now become much 

 louder than before. As nightfall approached, the commotion grew more 

 intense, and presently one or two bats swooped out from beneath the roof- 

 ing and flew swiftly away into the dusk. Singly, or two and three at a 

 time, from all sides of the building they now came forth and dispersed in 

 different directions. Shortly after, a slight shower came on and with it a 

 breeze, but although I watched until it was quite dark, a large number of 

 the bats were evidently staying in their shelter, as evidenced by their 

 squeaks and scratching. Mr. Roberts told me that he had sometimes 

 observed them streaming back to their roost at a little before sunrise in 

 the morning, and further, that on windy or rainy.nights but few seemed to 

 leave tlie shelter of the building. 



In the series of t! skins preserved there is a slight variation in color that 

 appears to be correlated with sex, for the females are a uniform Prouts' 

 brown, while the males are nearly a Broccoli brown. 



Chilonatalus tumidifrons Miller. 



ChilonataluslumldifronsMiWer. Proc. Biol. Soc, Washington, vol. 16, p. 119, 

 Sept. 30, 1903. 

 INIr. Miller has recently made known this delicateh'-formed species from 

 four specimens collected July 12, 1903, at Watling's Island by tlie Bahama 

 Expedition of the Geographical Society of Baltimore. It is with pleasuie, 

 therefore, that we are able to report it from a second locality. Great Abaco, 

 thus extending the known range some 200 miles northwest, to the north- 

 ern islands of the group. Our colony inhabited a cave at Israel's Point, on 

 the northeastern shore of the island. The entrance to this cave was 

 through a narrow sloping passage, leading down with a slight turn to a 

 small underground chamber some eight feet high, and quite dark. Here, 

 on July 7, I estimated that about 300 bats were hanging from the rough 

 limestone of the sides and roof of the cave. As my guide and I entered 

 with our lantern, those nearest at hand began to flit back and forth keep- 



