On Ibis propinqua and Ibis melanocephala. 473 



'88. ^CMOPHORUS MAJOR (Bodcl.). 



Not very common : it is generally found in the lagunas, 

 but sometimes comes down to the arroyos. 

 -7'-89. Tachybaptes dominicus (Linn.). 



[One skin of this widely-spread Grebe. — P. L. S.] 

 "f~90. PoDiLYMBUS poDicEPS (Linn.). 



This Grebe is plentiful and breeds in the reeds of the 

 lagunas. The nest is simply a heap of rubbish placed 

 amongst the reeds^ and the eggs are almost on a level with 

 the water. The clutch is four or five ; all the eggs I have 

 taken were very much stained, l)ut they were quite fresh, 



91. Rhynchotis rufescens (Temm.). 



[One skin of this species is in the collection. — P. L. S.] 



92. NoTHURA MACULOSA (Tcmm.). 



Very numerous in the tall grass-covered camps. The 

 nest is placed either in long grass or under thistles, and 

 usually contains from five to ten eggs ; but five is the normal 

 clutch, and if there are any more in one nest, they will 

 probably have been laid by more than one bird. 



XLIX. — On the Identity o/Ibis propinqua with Ibis 

 melanocephala. By Henry Seebohm. 



The following are the synonyms of Ibis melanocephala : — 



Tantalus melanocephalus , Latham, Index Orn. ii. p. 709 

 (1790). 



Ibis melanocephala (Lath.), Vieillot, N. Diet. Hist. Nat. 

 xvi. p. 23 (1817). 



Ibis macei, Wagler, Syst. Av. p. 368 (1827). 



Ibis leucon, Temminck, PL Col. No. 481 (1829). 



Ibis bengala, Cuvier, Regne An. i. p. 520 (1829). 



Ibis aimolene, Hodgson, Gray's Zool. Misc. p. 86 (1844), 



Geronticus melanocephalus (Lath.), Gray, Genera Birds^ 

 iii. p. 566 (1847). 



Threskiornis melanocephalus (Lath.), Blyth, Cat. Birds 

 Mus. As. Soc. p. 275 (1849). 



Ibis propinqua, Swinhoe, Proc. Zool. Soc. 1870, p. 428. 



Swinhoe was perfectly justified at the time in supposing 



