126 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



Oceanodroma melania, Bonap. 



This species from the west coast of Mexico has been described by Ridgway as 

 0. Tovmsendi in the Proceedings of the National Museum, Vol. XVI. p. 687, 

 but is probably referable to 0. melania. 



Nine specimens. I obtained the first on March 28, 1889, off Guaymas, the 

 others in 1891 ; one off Acapulco, April 12th, and the others off Guaymas, 

 April 21st. 



Halocyptena microsoma, Coues. 

 Halocyptena microsoma, Coues, Proc. Phila. Acad., 1864, p. 78. 



A single individual obtained while the " Albatross " was dredging off Aca- 

 pulco, April 12th. This is the third specimen known. I procured the second 

 in 1888, off Panama. The original was taken in 1861, off Cape St. Lucas. 



Procellaria tethys, Bonap. 



Four specimens : two off Chatham Island, Galapagos, March 28th, and two 

 on March 24th, 400 miles east of the Galapagos. 



Puffinus tenebrosus, Pelz. 



Three specimens : one off Chatham Island, March 28th, the others off 

 Wenman Island, April 4th. 



