( 14) 



Adult. Forehead as far as the anterior border of the eye, superciliary region, 

 sides of the bead and neck, foreneck and breast bright ferruginous; crown, occiput 

 and back uniform rich brown (about "raw amber" of Ridgway's Nomencl., pi. iii. 

 fig. 14), shading into fuliginous on the rump and upper tail-coverts. 



Of this form I have before me eight specimens from the ('aura River, one 

 d ad. and two ? ? ad. from Nericagua, Orinoco, and one pair (c? ? ad.) from 

 Marabitanas, upper Rio Negro. Besides these, I examined in the British Museum 

 an adult bird from Oyapoc, ( 'avenue, received from Madame Verdey of Paris. 

 Dr. Sclater doubted the correctness of the locality, but, judging from the make of 

 the skin, I think there can be no question that the bird really came from Cayenne. 

 In these fourteen specimens the ferruginous front and sides of the head are 

 sharply denned against the brown colour of the vertex and occiput, and there is 

 no trace of rufous on the back. The upper tail-coverts and the adjoining feathers 

 of the ramp are always dull fuliginous. 



N.B. — In order to ascertain to which form the name S. rutilans strictly applies, 

 I wrote to Dr. van Oort, of Leyden, asking for particulars about Temmiuck's type. 

 My friend, however, informed me that this valuable specimen is not in the Leyden 

 Museum. There was, then, a possibility that Temminck might have described one 

 of Natterer's specimens. Natterer obtained the first example of any form of this 

 group near Irisanga, S. Paulo, in December 1S~2. According to lets, 1833. p. 546, 

 the collections made by him from October 1*22 to December 1>24 did not reach 

 Vienna until September 1827, while Temmiuck's description and figure of 

 S. rutilans was already published in September 1823 ; from this it is evident 

 that none of Natterer's skins can have formed the basis of his account, and it 

 appears that the type is lost. Although the plate in the Planches coloriies could 

 be referred with equal certainty to the Amazonian representative, the description 

 (cfr. " toutes les parties superieures du corps, le bas-veutre et l'abdomen ont nue 

 teinte olivatre . . . ") is only applicable to one of the brown-backed forms ; and 

 since, at Temmiuck's time, no collecting was done in Mattogrosso, except by 

 Natterer, I feel justified in restricting the term rutilans to the northern subspecies, 

 of which specimens are much more likely to have come into the hands of the great 

 Dutch ornithologist. Moreover, the Berlin Museum possesses an example of the 

 present form, which, according to information received through Prof. Reicheuow, 

 may possibly be Temmiuck's type, who, in the text of S. cinerascens, says : "ces 

 trois especes [sc. S. rutilans, S. albescens and .$'. cinerascens] font partie des Musees 

 des Pavs-Bas, de Vienne et de Berlin." 



b. Synallaxis rutilans amazonica n. subsp. 



Sijiiallaxia rutilans (nee Temmiuck !) Sclater & Salvin, I'.Z.S. 1867. p. T.jo ( Xeberos, Chyavetas) : 

 iidem, Z.c. 1873. p. 269 (Xeberos, Chyavetas, Chamicuros) ; Taczanowski, P.Z.S. 1882. p. 26 

 (Yurimaguas); idem, Orn. Perou ii. (1884) p. 132 (Peru); Chapman & Riker, Auk, 1891, 

 p. 26 (Santarem) ; Sclater, Oat. Birds Brit. Mux. xv. (1890) p. 57 (part. : specimens c—e). 



Hab. A'. Brazil, Lower Amazons : Santarem (Hoffmanns & Biker). N.E. Peru : 

 Xeberos, Chamicnros, Chyavetas (Bartlett), Yurimaguas (Stolzmann). 



Adult. Litters from the typical form in having not only the front and sides 

 of the head ferruginous, but also the whole top of the head as well as the mantle 

 of this colour. There is but a slight brownish admixture on the occiput to 

 be seen iu some specimens. Bump and upper tail-coverts are fuliginous or slaty 



