55 [Vol. xix. 



apical margins to the four outer rectrices pale cinnamon 

 (instead of buff). From P. a. affinis [guianensis, Bouc.) 

 the new form may be distinguished by its much darker 

 ochraceous underparts^ and especially in having the under 

 tail-coverts deep ochraceous (instead of pure white). The 

 billj too, is much longer and stronger. Wing 64 ; rectr. 

 med. 72, submed. 43, ext. 27 ; bill 41 mm. 



Hab. Humaytha, on the left bank of the Rio Madeira, 

 Brazil. 



Type in the Triug Museum: adult (not sexed),No. 1147, 

 23. viii. 06. From Mr. W. Hoffmanns. 



NONNULA SCLATERI, Sp. n. 



? ad. Upperparts warm brown, rather duller on the 

 head. Distinct frontal edge and lores deep ochraceous-buff ; 

 cheeks and ear-coverts uniform dark grey. Quills blackish, 

 the secondaries exteriorly edged with buff-brown ; tail- 

 feathers dusky, with very narrow edges of a paler brown along 

 the outer web. Chin bright ochraceous-buff, throat and chest 

 greyish-fulvous, sides of the belly brownish-buff; middle of 

 the abdomen and under tail-coverts white. Axillaries, under 

 wing-coverts, and quill-lining ochraceous-buff. " Iris brown ; 

 feet and bill black." Eyelid slightly protruding , bright red, 

 with but a few feathers of bright buff here and there. 

 Wing 62 ; tail 53i ; bill 22^ mm. 



Hab. Humaytha, on the left bank of the Eio Madeira, 

 Brazil. 



Type in the Tring Museum : ? ad., No. 1093, 16. viii. 06. 

 Procured by Mr. W. Hoffmanns. 



Obs. This new species, which I have named after Dr. P. 

 L. Sclater, author of an excellent monograph of the Puff- 

 birds, belongs to the group of N. ruhecula (Spix) andiV. cine- 

 racea, Scl., but is distinguished at a glance by its much smaller 

 size, deep ochraceous-buff frontal band, lores, and chin ; by- 

 lacking the white patch below the eye ; and especially by the 

 eyelid being bright red and almost entirely bare, while in the 

 two allied species it is black and covered with numerous 

 feathers of pure white. 



