PODILYMBUS. — CYMOCHOREA. 



85 



and neck also white with blackish-brown streaks and patches ; 

 middle of crown and a bar on the nape buff. 



This bird can always be distinguished from all the other Grebes 

 bv the black band on the bill. 



Fig. 17. — To show the peculiar shape and colour of the hill. 



The specimens from which the descriptions were taken are in 

 the British Museum. 



There are no examples of this species in the McConnell 

 collection ; but Mr. McConnell told me that he had met with it 

 in the Colony, and the Curator of the Georgetown Museum 

 informs me that they have specimens from Yryheid's Lust and the 

 Hobabo Creek, the former on the east coast of Demerara and the 

 latter about eight miles inland, an affluent of the Demerara River 

 {in Utt.). 



Order PROCELLARIIFORMES. 



Family THALASSIDROMID.E. 



The Petrels are essentially sea-birds and are all web-footed. 

 They can aluuys be distinguished from the other orders of I)irds 

 by iheir [)eculiar bills and tubular nostiihs. 



Genus CyMOCHOREA Cones. 



Cyinocliorra C<jues, Proc. Auad. Nat. Sci. I'liilad. ISIJI, p. 7.j. Ty[>o 

 6'. Ifucorhua (Vieill.). 



The members of this genus are very small bii-d> witli tubular 

 nostril^, as shown in the ligure, and ha\e foiked taiN, shoit l<'gs, 

 aii<i "rmail webbed feel. 



