l6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 69 



where he secured specimens representing practically all of the 

 species of land mammals that occur there, with thfe possible excep- 

 tion of some bats. Transferring his activities to western Panama 

 he spent nearly a year in intensive work centered in the area between 

 the Pacific coast at David and Pedregal and the summit of the lofty 

 Volcan de Chiriqui. The intermediate localities visited were Divala, 

 Bugaba and Boquete. The results of this work, which also included 

 birds, covering a section with an altitudinal range from sea level to 

 over 11,000 feet, were published by Outram Bangs (1902) 1 and con- 

 stitute one of the most important contributions to our zoological 

 knowledge of a single area in Middle America. Under the auspices 

 of the John E. Thayer Expedition of 1904, Mr. Brown made a second 

 trip to the Pearl Islands in February, March and April of that year. 

 He visited San Miguel, Saboga and Pacheca islands, but added few 

 mammals to the collection made in 1900. The greater part of May, 

 1904, was spent by Mr. Brown at Caledonia, near the city of Panama 

 and on the edge of the savanna of the same name, making general 

 collections of vertebrates, especially birds, the locality proving to be 

 poor in mammals. 



In 1900 and 1901, while Mr. Wilmot W. Brown, Jr., was engaged 

 in field work in western Panama, a part of the same region was 

 visited by Mr. J. H. Batty. Mammals were collected by him mainly 

 at or near Boqueron and Boquete, but also on Coiba and other islands 

 near the coast. His collection aggregating over 1,000 specimens 

 was divided, a part being acquired by the Hon. Walter Rothschild 

 and a part sold to the American Museum of Natural History. It 

 formed the basis of papers published by Mr. Oldfield Thomas and 

 Dr. J. A. Allen, tending to amplify data in the general field covered 

 by Mr. Outram Bangs. Mr. H. J. Watson, the owner of extensive 

 plantations at Bugaba, Chiriqui, began sending many mammals to 

 the British Museum prior to 1900. Those proving to be new were 

 described at intervals, mainly by Mr. Oldfield Thomas, thus adding 

 further to the comparatively full knowledge of a restricted area in 

 southwestern Panama. 



Dr. Thomas Barbour visited the Isthmus early in 1909. From 

 headquarters at Ancon excursions were made between the last of 

 February and the first of April to various points in the Canal Zone, 

 and to some of the islands in the Bay of Panama. His collections 

 were mainly of anatomical and embryological material, including a 

 considerable number of bats from San Pablo. A few bats and other 



1 Accounts of birds were published as follows : Auk, Vol. 18, pp. 355-370, 

 Oct., 1901 ; Proc. New England Zool. Club, Vol. 3, pp. 15-70, Jan. 30, 1902. 



