154 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



61. Tyrannus melancholicus satrapa (Light.). 



Thirty-four adults, both sexes, Sail Miguel, Saboga, and Pacheca Islands, 

 February, March, and April. 



TURDIDAE. 

 *62. Hylocichla swainsoni (Cab). 

 Two adults, ^ and 9 i ^Jiboga Island, April 8 and 11. 



TROGLODYTIDAE. 



63. Troglodytes musculus inquietus (IUird). 



One adult male, San Miguel Island, March 18. This skin agrees in all 

 respects with specimens from Panama. As it was tlie only house wren Mr. 

 Brown saw in the islands on either trip, it may have come there by some 

 accident. 



64- Thryophilus galbraithii conditus Bangs. 



Thrtjophibis rjalbniithii conditus Bangs, Proc. New Eng. Zotil. Club, vol. 4, pp. 3-4, 

 March' 16, 1903. 



Ten specimens, adults of both sexes, San Miguel Island, February and 

 March. These, like the original specimens, are deeper in color and slightly 

 larger than mainland examples of true T. galbraithii. 



VIREONIDAE. 



66. Vireosylva insulanus (Bangs). 



Vireo insulanus Bangs, Proc. New Eng. Zoul. Club, vol. 3, p. 73, March 31, 1902. 



Twenty specimens, adults of Ijoth sexes, San Miguel and Saboga Islands, 

 February, March, and April. The present series shows the same characters to 

 distinguish the island bird from true F. flavoviridis Cassin as did the original 

 four skins on which the form was based, — smaller size, duller color of back, 

 and more pronounced lateral line of pileum and pale superciliary stripe. Still 

 all these characters are average ones, and had not Ridgway in Birds of North 

 and Middle America treated the Inrd as a distinct species, we should feel in- 

 clined to reduce it to a subspecies of V. flavoviridis. 



*66 Vireosylva olivacea (LiNNE). 

 Five adults, both sexes, Saboga Island, April 7 to 12. 



