Mr. P. L. Sclater on new species of Birds from Ecuador. 429 



DYSITHAMNUS UNICOLOR. 



Obscure schistaceus unicolor : alis caudaque nigricantioribus : 

 subalaribus albo variegatis : rostra nigro, pedibus plumbeis. 



$ . Obscure ferruainea, subtus dilutior : lateribus capitis cineras- 

 centioribus. 



Long, tota 5*6, alse 2*8, caudae 2*3. 



A pair of these birds, "from the lower trees and underwood: 

 irides grey." The species must be placed next to D. schistaceus of 

 my Synopsis. It differs in its shorter, stouter bill, the white mark- 

 ings beneath the wings, and want of white terminations to the rec- 

 trices. The brown bird is marked by Mr. Fraser as male ;' but I 

 have little doubt this is wrong. 



FORMICIVORA CALOPTERA. 



Cinerascenti-olioacea, fronte et superciliis albis : loris et regione 

 oculari nigris : alis nigris, harum tectricibus minoribus et ma- 

 joribus albo late terminatis ; remigibus secunda, tertia, quarta 

 et quinta albo, ceteris castaneo-rufo extus anguste limbatis : 

 subtus alba ; subalaribus, lateribus corporis et crisso flavicante 

 perfusis : cauda cinerea, rectricibus duabus utrinque extimis 

 omnino et duabus sequentibus partim albis : rostro nigro, man- 

 dibulce inferioris basi albicante, pedibus plumbeis. 

 Long, tota 4*4, alse 2*1, caudse 1*8. 



Three ex. "Irides hazel." Sexes, as marked, alike; but I should 

 be inclined to consider them all males. The general appearance of this 

 species is much the same as that of Herpsilochmus rufimarginatus ; 

 but the bill is much smaller and more feeble. 



PACHYRHAMPHUS HOMOCHROUS. 



c? . Nigricanti-cinereus, subtus dilutior : plaga in basi inter- 

 scapularium celata et macula ad basin primariorum interna 

 albis : rostro superiore nigro, inferiore cum pedibus plumbeis. 

 $ . Castanea, subtus dilute cinnamomea, remigum parte interna 



nigricante. 



Long, tota 67, alse 3 '6, caudse 27. 



Three examples, one male and two females of this apparently un- 

 described species of Pachyrhamphus. It is closely allied to the rosy- 

 breasted Pachyrhamphus pectoralis and its allies, but has no trace of 

 colouring on the breast. The male has the usual second abnormal 

 short primary. Mr. Fraser says in his notes, of the male (No. 1310), 

 " Irides hazel ; scaling of feet exactly like specimen No. 1307, of 

 which I believe it to be the male. It was not found in the same 

 tree, but close by. To me this is the most interesting bird I have 

 collected in America, particularly as I believe it will confirm Mr. 

 Sclater's views." " Contents of stomach insects." 



CEPHALOPTERUS PENDULIGER*. 



Niger, nitore nonnullo ceneo : subalaribus albis nigro variegatis : 

 appendiculo gutturali anausto, longissimo, ad mediam caudam 



* A figure of this Cephalopterus, from Mr. Wolfs pencil, is given in the first 

 number of ' The Ibis,' 1859 (pi. iii.). 



