two small Grey Noddie^j, .-'■nuui: ,;ur "je large Noddies), 

 Micranous (for the sinall Slender- hi lied Noddies), and Gygis 

 (fur the 2 aberrant "WLite T'.rnir) : 11 genera, 51 species. 

 The . American Black Tern {I'-ttjdrocheVichn surmamensis) is 

 admitted to specific rank : h'ierna yamiderd, Hume, is the 

 proper name for the >]jecies jn'ovisionally called S.sumatrana 

 in 1876 ; Sier/ia lonna is the ninne for tlie small Tern from 

 the south-west of Ameri'"'a. nveAiously k3KJ^Tn as S. exUis 

 of Tschudi. the type of ^. exU[i< m the Neuchatel Museum 

 having proved to be H. suriiio ■/iei/^ts. 



'In the subfamily I'ljiyucht pina; — Viitli only one genus, 

 jRhyndiops — five species are ^icimirted. Three of these are 

 found in America, one in Afj'ica, and one in Iiidia. That the 

 species found in Africa is far cl oser to the south-east x\.merican 

 species than it is to the India); will excite no surprise. 



The subfamily Larinai cont aiiied 7 genera .- — Xema, for 2 

 species of York-isxled Gm\\% •,\PJiodosteihia, for 1 species of 

 AVedge-taile 1 Gull ; Larm (;44 species) ; Gabianus, for the 

 large Australian Gull, G. pucificus, with a very deep bill ; 

 Leucopli(RUS, for L. scoresbli ; FagophUu, for tlie Ivory Gull ; 

 and Rissa, for the two specie^' of Kittiwake. 



In the family Stercohakii^.e, the large Skuas were placed 

 in the genus Megalesfris [M'. catarrKades , &:c.), while the 

 three species with eloue:ated ceintral tail-feathers were retained 

 under the genus Stereo rari us.] 



I 

 Mr. ScLATER exhibited sohne bird-skms from a collec- 

 tion sent to him for examination by JMr. J. J. Quelch, of the 

 Museum, Georgetown,. Ei'uish Guiana, and called special 

 attention to a fine adult male specimen of Caprimulgus 

 maculicaudus (Lawr.) (Hartert, Cat. B. xvi. p. 575), and to 

 au example of Nyctipii'ogne le.ucopygia (Spix), being the first 

 specimens he had met with of tliese species from British 

 Guiana. The two specimens of C. rnacuiicaudus in the British 

 Museum were both females, ]Mr. Hartert hiavjag described the 

 male from an example in Graf v. Berlepsclr's collection. 



Mr, ScLATER called attention to the completion and 



