■U THE VOYAGE OF H.M.S. CHALLENGER. 



[This Tern was most abundant here, and could always be seen in immense numbers, 

 feeding on the shoals of fishes.] 



26. A nous melanogenys, Gray. 



Anous mdanogenys, Saunders, Proc. Zool. Soc, 1876, p. 670; Sol., ibid., 187, p. 557. 

 One "female" (No. 484). [Eyes black.] 



27. Sterna bergi, Licht. 



Sterna bergi, Scl., Proc. Zool. Soc, 1877, p. 557. 



One skin (No. 486). [Eyes black.] 



Mr Howard Saunders has kindly determined the Laridpe for me. 



III. — On the Birds collected in Tongatabu, the Fiji Islands, Api (New Hebrides), 



and Tahiti. By Dr 0. Finsch, C.M.Z.S. 



(Plates XII. to XVII.) 



(Reprinted from the Proceedings of the Zoological Society of London for 1877. With Notes and Additions 



by P. L. Sclater, F.K.S.) 



[The standard authority on the Birds of the South Pacific Islands is the "Beitrag 

 zur Ornith. Faunas Central-Polynesiens " of Finsch and Hartlaub, published in 1867, to 

 which Dr Finsch refers in the case of most of the species in the present memoir. 

 The numerous discoveries recently made would, however, render a supplement or new 

 edition very desirable. — P. L. S.] 



A. BIRDS OF TONGATABU, FRIENDLY GROUP. 



These are thirty in number. They were collected on July 20, 21, and 22, 1874 

 Only nine species are represented in the series. 



1. CoUocalia spodiopygia, Peale. 



Colloealia spodiopygia, F. and H., Ornith. Central-Poly n., p. 48 ; Layard, Proc. Zool. Soc, 187G, 

 p. 501 (Tonga) ; Finseh, Journ. Mus. Godeffr., Heft xii., 1876, p. 26 ; Finsch, Proc. Zool. 

 Soc, 1877, p. 723. 



Colloealia, sp. ? F. and H., Jour. f. Orn., 1870, p, 125 (nest, Tonga). 



[No. 11. Tongatabu.] 



