1894.] NATURAL SCIENCES OF PHILADELPHIA. 117 



Anous galapagensis Sharpc. 



Aitoii-i gahqxigeims Shiu'pe, Traus. Pbilos. Soc, CLXVIII, 1879, 

 p. 469. 



Hab. Galapagoes Islands. 



Anous tenuirostris (Temm). 



Sterna tenuirostris Temm., PI. Col. 202 (1838). 

 Sterna melanops Gould., P. Z. S., XIII, p. 103 (1845). 



Hab. Senegal (Temminck), W. coast of Australia 'Gould). 



Mauritius (Saunders). 



The only specimens of this species that I have seen are the two 

 types of Gould's, A. melanops, a male and female from Hartman's 

 Abrolhos, Australia. These differ slightly from the figure given by 

 Mr. Saunders, for although the lores are light gray, they are uni- 

 form with the side of the neck rather than with the cap and there 

 is a distinct line of deraarkation passing from the base of the upper 

 mandible opposite the nostril to the upper edge of the eye, instead of 

 from the gape as drawn in Mr. Saunders' figure. 



This species is lighter colored than the next two and the cap is not 

 so white, being nearly uniform pearl gray from the base of the bill to 

 the nape. 



Anous leucocapillus Gould. 



Anous leucocapillus Gould, P. Z. S., XIII, p. 103 (1845). 



f Anous melanogenys G. R. Gray, Gen. Birds III, p. 661, PI, 

 182 (1849). 



Anous melanogenys Saunders, P. Z. S., 1876, p. 670. 



Hab. Raines Isl., Australia (Gould); Nilian Hawaiian Isls. (U. 

 S. N. M. coll.) British Honduras (U. S. N. M. coll.) Dangerous 

 Archipelago (U. S. N. M. coll.) 



The jet black lores and the darker slate black plumage readily dis- 

 tinguish this from the preceding species while the very different tint 

 of the plumage and the difference in extent of the white on the head 

 separate it from the following. 



Two specimens in the U. S. National Museum collection, one 

 labelled " Dangerous Archipelago " and the other "Pacific Ocean" 

 belong to this species, and it is probable that all the remarks in the 

 Reports of Peale and Cassin refer to this bird. This seems to be the 

 most abundant species of the genus after A. stolidus. 



Anous atrofuscus sp. nov. 



Anous leucocapillus Saunders, P. Z. S. , 1876, p. 670, not A. leu- 

 cocaplUus Gould. 



