142 



47. Formicivora caudata, Sclater, P. Z. S. 1858, p. 240. 

 Two ex. " Irides hazel ; bill black above, bluish beneath ; legs and 



feet blue." 



48. Formicivora caloptera, sp. nov. 



Cinerascenti-olivacea, f route et super ciliis albis : loris et regione 

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

 jor ibus 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 21, 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. 



49. Pachyrhamphus homochrous, sp. nov. 



S • Nigricanti-cinereus, subtus dilutior : plaga in basi inter- 

 scapularium celata et macula ad basin primariorum interna 

 albis : rostro superiore nigro, inferiore cum pedibus plumbeis. 



2 . Castanea, subtus dilute cinnamomea, remigum parte interna 

 nigricante. 



Long, tota 6*7, alse 3*6, caudse 2* 7- 



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." 



50. Cephalopterus pendtjliger*, sp. nov. 



Niger, nitore nonnullo ceneo : subalaribus albis nigro variegatis : 

 appendiculo gutturali angusto, longissimo, ad mediam caudam 

 attingente, omnino plumis obtecto : rostro superiore nigro, infe- 

 riore plumb eo ; pedibus nigris. 

 Long, tota 14*5, alse 9*5, caudae 4*5, rostri a fronte 1*7, tarsi 1 *8. 

 Two ex., both males. " Irides reddish." This extraordinary bird 

 forms a third species of the peculiar genus Cephalopterus of Geoffroy 

 St.-Hilaire, of which the type C. ornatus is now well known in col- 



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

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



