48 Mukphy, Birds of Fernando Noronha. [jan. 



7. Arenaria interpres (Linn.). Strepsilas interpres, Nicoll, 

 Ibis, 1904, p. 39. 



8. Sterna fuliginosa (Gm.). Sterna fuliginosa, Nicoll, Ibis, 

 1904, p. 39. 



9. Anous stolidus (Linn.). Anous stolidus, Saunders, Cat. B. 

 XXV, p. 141. Nicoll, Ibis, 1904, p. 38. 



10. Micranous leucocapillus (Gould). Anous melanogenys, 

 Sharpe, Journ. Linn. Soc. (Zool.) XX, 1890, p. 479. 



At the time of our visit Noddies of this species far outnumbered 

 all other birds. Six breeding adults were collected. Several are 

 in new, unworn plumage, and have the outermost remex only half 

 grown or less. 



Measurements of 5 skins. 



11. Gygis crawfordi Nicoll. Gygis Candida, Sharpe, Journ. 

 Linn. Soc. (Zool.) XX, 1890, p. 480. Saunders, Cat. B., XXV, 

 p. 149. Gygis crawfordi, Nicoll, Bull. B. O. C, XVI, 1906, p. 102. 



Nicoll, Ibis, 1909, p. 669, states, "Probably all examples of the 

 White Tern from the Atlantic are referable to this species, as a 

 glance at the map will show how completely it is isolated. A few 

 pairs breed on Fernando Noronha Island, and it has been also 

 recorded from St. Helena and Ascension as a breeding species." 



x\bout twenty examples of this tern were seen, mostly flying in 

 pairs from shelf to shelf of the upper cliffs, or sitting side by side 

 on the boughs of trees. Four breeding birds were collected, one 

 of which was preserved as a skeleton. They agree in general with 

 Nicoll's description, which, however, is not very detailed: — "Simi- 

 lar to G. Candida, but may be easily distinguished by the following 

 characters. Bill wholly black (not blue at the base, as in G. Candida), 

 more slender and narrower at the base; nostril situated much 

 nearer the forehead ; wing longer than in G. Candida; tarsi and toes 

 pale blue, webs white." The species appears also to differ from 

 G. alba (= Candida) in having a heavier ring of black around the eye. 



