492 Bulletin American Museum of Natural History. [Vol. XXXVI, 



to P. cinnamomeus and also to P. rufus (Bodd.) ( = P. cinereus Auct.) 

 but cannot be properly referred to either. Compared with specimens of 

 cinnamomeus taken at the same season on the Pacific coast it is slightly 

 smaller (wing, 70; tail, 52; culmen, 13.8 mm.) and is much paler through- 

 out, the lores and underparts being whitish faintly tinged with buff, the 

 underparts pale tawny rather than rich rufous tawny, while the wing- 

 coverts are uniform tawny or rufous tawny without trace of paler margins. 

 In this character the bird agrees with the female of P. rufus but it is much 

 paler below than any female of that species in our collection and is decidedly 

 larger, the bill especially being heavier, the tail longer, the tail-feathers 

 wider. Furthermore, there is less difference between the color of the head 

 and back than in ruf-us. Nor can it be considered the female of P. magda- 

 lence which is less rufous above and has the wing-coverts conspicuously mar- 

 gined and, in the male at least, the cap obviously deeper than the back. 

 The discovery of the male of this species will be awaited with interest. 



(3224a) Pachyrhamphus castaneus saturatus Chapm. 



Pachyrhamphus castaneus saturatus Chapm., Bull. A. M. N. H., XXXIII, 1914, 

 p. 628 (La MoreKa, Col.). 



Char, subsp. — Similar to P. c. intermedius BerL, but much darker throughout; 

 the back deep hazel, or between amber, brown and argus, brown, the underparts 

 ochraceous, tawny, the nape slate-gray; the crown of nearly the same shade as the 

 back. 



Known only from the type. 



(3226) Pachyrhamphus polychropterus niger (Spix). 



Pachyrhynchus niger Spec., Av. Bras., II, 1825, p. 33, pi. xlv, fig. 1 (Rio lea). 



Two adult males from La Morelia and Florencia respectively, have 

 the rump, upper tail-coverts and ventral region wholly black, and are evi- 

 dently' typical of this form. Four males from Buena Vista and Villavi- 

 cencio also have the rump and upper tail-coverts black, but the ventral 

 region is more or less grayish, and these birds thus show an approach 

 toward the form of niger which inhabits Trinidad. Of this form we have 

 five adult males from Trinidad. Compared with twelve adult males from 

 Santa Marta (Bonda) the Trinidad birds are black rather than gray below, 

 while the upper tail-coverts are black slightly edged with grayish instead 

 of pure gray. The differences are apparent at a glance and the distinct- 

 ness of the two forms is beyond question. If the name cinereiventris Scl. 

 can be properly applied to Santa Marta birds it is certainly not applicable 



