No. 15. — Exploration of Lake Titicaca, by Alexander Agassiz 

 and S. W. Garman. 



III. List of Mammals and Birds. By J. A. Allen, with Field- 

 Notes by Mr. Garman. 



The mammals and birds enumerated in the present paper were 

 collected incidentally by Mr. S. W. Garman, between January 1 and 

 March 5, 1875, while engaged in a general exploration of Lake Titi- 

 caca, Peru, under the direction of Mr. Alexander Agassiz. The col- 

 lection of birds, numbering sixty-nine species, represented by about 

 two hundred and thirty specimens, possesses especial interest as being 

 the first considerable collection ever made at this locality. Although < 

 but few new forms were obtained, the collection embraces a number 

 of the species recently described by Messrs. Sclater and Salvin, Caba- 

 nis and others, from the collections of Messrs. Bartlett, Whitely, Haux- 

 wcll, and Jelski, who during the last six or eight years have made 

 very large collections in Peru.* The resemblance of the bird-fauna 

 of Lake Titicaca to that of neighboring portions of the highlands not 

 far to the eastward, visited by Mr. Whitely, is shown by the fact that 

 of Mr. Whitely's small collection of forty-seven species, made at and 

 near Tinta, on the Yilcamayo, southeast of Cuzcot (11,000 feet 

 above sea-level), twenty-seven, or more than one half, are contained 

 in Mr. Carman's collection. 



Mr. Garman collected almost exclusively about the immediate bor- 

 ders of the lake and on the lake itself, so that a large proportion of 

 the species are aquatic, j Several of the incessorial birds were met 



* For a list of the pnpers referring to these collections published prior to 1873, see 

 Proc. Zool. Soc. Lond., 1873, pp. 252, 253. M. L. Taczanowski has since described 

 twenty new species, and published a list of 495 species collected in Central and West- 

 ern Peru by M. Jelski (Proc. Zool. Soc. Lond., 1874, pp. 501-505). Cabanis has also 

 described several new species from M. Jelski's collection (Journ. f. Orn., 1874, pp. 

 97-99), and Messrs. Sclater and Salvin have published additional papers on collections 

 made by Messrs. Whitely and Bartlett (Proc. Zool. Soc. Lond., 1873, 1874). 



t See Proc. Zool. Soc., Lond., 18G9, p. 151. 



| Six species are included in the list which were collected by Mr. Walter Davis at 

 Coroico, Bolivia, a few miles to the southwestward of Lake Titicaca, in a forest region. 



