146 bulletin: museum of comparative zoology. 



parts of the island birds also may not be a real difference, but is perhaps 

 seasonal. Specimens measure as follows : 



No. Locality. Sex. Wing. Tarsus. Culmen. 



14.297 Sau Miguel Island 



14.298 do. 



14.299 do. 

 40,343 M.C. Z. do. 



7,060 Panama, Loma del Leon ^ ad. 



7.649 Chiriqui, Divala 



7.650 do. 



CHARADRIIDAE. 



19. Haematopus palliatus Temm. 



One adult, 9, San Miguel Island, Marcli 12. This example is rather small, 

 but E. W. Nelson, who examined it during a study of the American Oyster 

 catchers, considers its small dimensions as only the extreme of individual 

 variation. 



*20. Arenaria interpres (Linne). 

 Three specimens, $ ^ and 9 i San Miguel Island, February 27. 



* 21. Squatarola squatarola (Linne). 

 One 9, San Miguel Island, March 11. 



*22. Ochthodromus ■wilsoni (Ord.). 

 Three females, San Miguel Islaml, February 29 and March 11. 



*23. Aegialeus semipalmatus (Bp.). 

 Three specimens, c? 9 9 > San Miguel Island, March 4, 9, and 17. 



*24. Numenius hudsonicus Lath. 



Three specimens, two females and a male, San Miguel Island and Saboga 

 Island, February 24 and April 5. 



•25. Catoptrophorus semipalmata (Gmel.). 

 Two females, San Miguel Island, February 20 and March 2. 



