234 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Sterna eurygnatha Saunders. 



Given by Captain Robinson as "common along the beaches." 

 Mr. Ferry did not find this species at Margarita, but he obtained a 

 specimen at Aruba. 



Sterna antillarum (Less.). 



Captain Robinson found this species abundant in July. (Proc. 

 U. S. Nat, Mus., Vol. XVIII, 1895, p. 653.) 



Family Ryiichopidse. 



Rhynchops nigra Linn. 



Both Captain Robinson and Mr. Clark found this species at Mar- 

 garita in July. None were taken or observed by Mr. Ferry in January. 



Family Procellariidse. 



Oceanites oceanicus (Kuhl). 



Recorded by Mr. Clark, who states, "On July 2 a flock of about 

 two dozen of these birds came about the boat in which I was crossing 

 from the mainland." (Auk, 1902, p. 260.) 



Family Sulidse. 



Sula leucogastra (Bodd.). 



Mr. Clark observed what he believed to be this species between 

 Margarita and the mainland. (Auk, 1902, p. 260.) 



Sula piscator (Linn.). 



Mr. Clark states, "Midway between the mainland and the island 

 a few small white Gannets, probably Sula piscator Vieillot, appeared." 

 (Auk, 1902, p. 260.) 



Family Phalacrocoracidse. 



Phalacrocorax vigua (Vie ill.}. 



2 specimens, both females. This is probably the species seen by 

 both Captain Robinson and Mr. Clark. "Locally common" (Ferry). 



