xliv INTRODI'CTIOX. 



specimens have boon collected or observed within the Colony 

 and to give an outline of the extralimital range of each of the 

 species. 



It may he mentioned, however, that there has been no attempt 

 to compile an exhaustive treatise. This book, therefore, can only 

 be regarded as a basis for future work, as it is quite obvious 

 from the many omissions that there is a great deal yet to be 

 done before we can have anything like a complete knowledge 

 of the subject. 



In the following pages three new^ forms are described from 

 the McConnell collection. These are northern representatives 

 of species originally described from the south, or southern 

 localities, viz. Orfi/gops dxincam, which is allied to 0. notata 

 Gould, who described it in the ' Voyage of the Beagle ' from 

 La Plata ; Creciscus macconnelli, closely allied to C. melanophceus 

 Vieillot, which was founded on " Ypacaha pardo ohscuro " of 

 Azara from Paraguay, and Ciccaha macconnelli, nearly allied to 

 C. superciliaris Pelzeln, which was described from Brazil. 



The follow^ing species and subspecies described in the present 

 volume are peculiar to British Guiana: — CrypAurus macconnelli, 

 C. dissimilis, C. simplex, Penelope yranti, Ortygops notata duncani, 

 Creciscus melanophceus macconnelli, Ciccaha superciliaris macconnelli, 

 Bolho7'liynchus panycldorus, Hydropsalis schomhurgki, Caprinndgus 

 whitelyi, Cho'tura albicincta, C. guianensis, Campylopterus 

 hyperytJirus, Agyrtrina whitelyi, Saucerottea cupreicauda, Chloro^ 

 stilbon svhfurcatus , Petasophora germanus, Heliodoxa xanthogonys, 

 Lophornis pavnoninus, JSeomorphus iiijipennis, Aulacorhamji/iiis 

 whitehjanus, and Picumnus macconnelli. 



Mr. H. Gronvold has prepared tlie original drawing of each of 

 the coloured plates and of the text-figures, which have been 

 reproduced by Messrs. John Bale, Sons, and Danielsson. 



The accompanying map of British Guiana has been engraved 

 by Mr. H. F. Milne of the Royal Geographical Society. 



