( 229 ) 



Brazilian specimen, a perfectly adult male, agrees in every way with Cayenne skins 

 and belongs undoubtedly to the present race. It is one of the two examples 

 referred to as T. coraya herberti Ridgw. in my paper quoted above. How this 

 mistake could have been committed I am at a loss to understand. In fact, the 

 Manaos specimen differs from that taken at Cara-raucu (which will be discussed 

 later on) by much darker, more chestnut-brown upper parts, dingy grey (instead 

 of cinnamon-brown) tail, more extended as well as much brighter fulvous-brown 

 colour on the sides of the body, distinct white markings on the cheeks and ear- 

 coverts, and by having the chest clouded with brownish. In all these characters 

 it is practically identical with Cayenne examples. T. c. coraya ranges, therefore, 

 from French Guiana south to the north bank of the Amazons. 



Nomenclature. Messrs. Brabourne and Chubb accept for the Cayenne bird 

 the name T. oyapocensis Ridgw., under the assumption that Daubenton's plate 

 represents the race from the Roraima Mountains in British Guiana. However, this 

 view cannot be upheld for several reasons. Firstly, on reference to Buffon's work * 

 we find that the description of " Le Coraya " f evidently applies to the ordinary 

 Cayenne bird, which, moreover, is the only Wren of this group occurring in the 

 French colony. Secondly, the interior of British Guiana was literally unknown at 

 the time of Buffon's writing ; and it was not until 1842 that Richard Schomburgk, 

 as the tirst European traveller, reached the distant mountain chain of which 

 Roraima is the culminating peak. Daubenton's figure with uniform fulvous -brown 

 belly might well have been taken from a young bird in which, as said above, the 

 greyish white middle line is nearly wanting. 



2. Thryothorus coraya griseigula (Lawr.). 



Formicivora griseigula Lawrence, Ann. N.Y. Acad. Sci. ii. no. 12. p. 382 (June 1883. British 



Guiana) ; Allen, Bull. Amer. Mus. N.H. ii. 1889, p. 151 (juv.). 

 Thryothorus coraya (nee Gmelin) Cabanis in : Schomburgk, Reisen Brit. Guiana iii. 1848, p. 674 



(" Kiistenwalder," Brit. Guiana) ; Sharpe, Cat. B. Brit. Mus. vi. p. 234 (part., descr. and hab. 



Bartica Grove) ; Salvin, Ibis. 1885, p. 201 (Bartica Grove, Merum6, Roraima Mts.). 

 T. ridywayi Berlepsch, Journ. f. Orn. 37, p. 293 (1889 Brit. Guiana ; the type is from Bartica 



Grove) ; Hellruayr, I.e. 51, 1903, p. 534 (crit., Bartica Grove [type], Camacusa). 

 T. coraya berlepschi Brabourne and Chubb, Ann. Mag. Nat. Hist. (8) x. p. 262 (1912. Bartica 



Grove). 

 T. oyapocensis ituribisciensis Brabourne and Chubb, I.e. p. 262-.(Ituribisce, Brit. Guiana). 



Hab. British Guiana : Bartica Grove, Merume Mountains, Roraima, Carimang 

 River, Camacusa (H. Whitely), Supernaam,t Camacabra Creek, Ituribisce (F. V. 

 McConnell). 



Adult. Much like T. coraya coraya, but differs by having the under parts 

 (except throat and foreneck) strongly washed with ochreous brown or tawny 

 ochraceous. In all other characters, viz. rufous brown colour of upper parts, greyish 

 brown tail-bands, distinct white stripes on sides of head, etc., it closely resembles 

 the typical race. 



Juv. Breast and abdomen uniform rufous-brown, much darker than in the 

 corresponding stage of T. c. coraya. 



Material. 1 cT ad. (type of T. ridgwayi\ 1 ? vix ad. (type of T, coraya ber- 



* Hist. Nat. Ois. iv. p. 484. 



t " La gorge et le devant du cou sont blancs, .la poitrine est moins blanche et prend une teinte de 

 cendr ; il y a un pen de roussStre sous le ventre et sur les jambes." 



% Spelt "Supinaam" \on the map in R. Schomburgk's Reiten in British Ouiana, vol. ii. Leipzig, 

 Spelt " Itterbiesje "/ 1847. 



