Severtzoff's 'Fauna of Turkestan.' 415 



343. Larus can us, L. ; SevertzofF, p. 70. 

 Horizontal range. Occurs on passage hi district III. 

 Vertical range. Occurs on passage in district 1. 



344. Larus cachinnans, Pall. ; Severtzoff, p. 70. 

 Horizontal range. Breeds in districts I., II., and III. 

 Vertical range. Breeds iu districts 1 and 3. 



345. ? Larus leucoph^us, Licht. 

 Larus argentatus, Severtzoff, p. 70. 



Horizontal range. Occurs on passage in district III. 

 Vertical range. Occurs on passage in district 1. 

 In a MS. note Dr. Severtzoff informs me that he believes 

 this species to be true L. leucophceus. 



346. Larus ichthyaetus. Pall. 

 Gavia ichthyaetos, Severtzoff, p. 70. 

 Horizontal range. Breeds in district III. 

 Vertical range. Breeds in district 1. 



347. Larus ridibundus, L. 

 Gavia ridibunda, Severtzoff, p. 70. 

 Horizontal range. Breeds in all four districts. 

 Vertical range. Breeds in districts 1 and 2. 



348. Larus minutus. Pall. 

 Gavia minuta, Severtzoff, p. 70. 



Horizontal range. Occurs in summer in district III. 

 Vertical range. Occurs in summer and possibly nests in 

 district 1. 



349. Sterna caspia. Pall. ; Severtzoff, p. 70. 

 Horizontal range. Breeds in districts I., IL, and III. 

 Vertical range. Breeds in districts 1 and 2. 



350. Sterna anglica, Mont. ; Severtzoff, p. 70. 

 Horizontal range. Breeds in all four districts. 

 Vertical range. Breeds in districts 1, 2, and 3. 



351. Sterna fluviatilis, Naum. 

 Sterna hiriindo, Severtzoff, p. 70. 



Horizontal and Vertical ranges. As in the preceding species, 

 except that in the latter it docs not breed in district 3. 



