Vol. xvi.] 84 



the cliest is laterally bordered with blackish. G. b. ruficeps, 

 Salv. and Godm., of Antioquia, is much more rut'escent 

 everywhere, has no ^rey whatever on the head and no black 

 border on the sides of the white chest. G. h. <rquatorialis 

 (Hellm.), of West Ecuador, which agrees with the new form 

 in having the sides of the occiput dark grey, has the fore- 

 head and vertex cinnamon-rufous, and a much smaller, 

 weaker bill. Wing 78'5, tail 48, bill 21-5 mm. 



Hah. Coast region of S. W. Colombia ; valley of the 

 Dagua River. Tyj)e S > El Paillon, near Buenaventura, 

 9. v., 1899. No. 9599 in Tring Museum ; collected by 

 by Mr. E. Andre. 



Myrmotherula ornata hoffbiannsi, subsp. n. 



(J Resembles 31. o. ornata (Scl.), of Bogota, but with 

 a clearer, more bluish, slate-grey colour on the head, 

 back and underparts, the chestnut-red patch on the rump 

 decidedly smaller, the cheeks and malar region darker grey, 

 and the brownish tinge on the flanks paler and more 

 restricted. Wing 53, tail 39, bill 15 mm. 



$ Quite different from that of M. o. ornata, ha\4ng 

 the throat uniform bright ochraceous, not black spotted 

 with white, the apical spots on the upper ^^dng-coverts 

 buff instead of pure white, and only a small irregular 

 spot in the middle of the back chestnut-rufous. In the 

 unspotted throat it agrees with the $ of M. Itamiatonota 

 (Scl.), but differs at a glance in its olive-grey (not light 

 rufescent-brown) head and mantle, and olive-grey (not 

 rufous-brown) tail, besides other differences. Wing 51, 

 tail 36, bill 14-5 mm. 



Hah. Itaituba, near Santarem, Lower Amazons. 



Type ? , 31. i. 06. No. 521 in Tring Museum ; collected 

 by Mr. W. Hoffmanns. 



CORAPIPO LEUCORRHOA ALTERA, Subsp. n. 



(^ Exactly of the same coloration as C. 1. leucorrhoa (Scl.) 

 of Colombia, but at once known by the different form of 

 the wing. The fourth primary the longest ; the fifth 



