CICHLOPSIS. 



435 



mediate between 6tli and 7th ; 3d between 5th and 6th, the feathers broad ; 

 the 1st primary slightly falcate, but not attenuated. Tarsi with two scntellar 

 divisions only anteriorly at lower end, as in other iVi/iadestes, the upper 

 indistinct. 



Whole upper parts, with head all round, and upper part of breast, oliva- 

 ceous-rufous (without any shade of green) ; lighter below, but brighter on 

 tliroat ; rest of under parts ashy ; the flanks, lower breast, crissum, and tibia 

 tinged with olive rufous. Tail like back; the central feathers and inner 

 webs ot the others with a purple tinge ; the lateral paler on inner edge and 

 at tip. Under wing coverts fulvous white ; the basal portion of inner webs 

 of quills (but not outer) pale cinnamon, fading off gradually along the edges 

 of the quills, rest of these webs purplish-brown ; whole of outer webs of quills 

 like back, without any bars. Bill above black, beneath whitish ; legs dusky. 



(No. 291o.) Total length, 8.00; wing, 4.20; tail, 4.00, graduation, .34, 

 emargination, .20 ; difference ot 10th and longest quills, .91 ; exposed portion 

 of 1st primary, 1.14, of 2d, 2.75, of longest (5th) (measured from exposed 

 base of 1st primary), 3.20 ; length of bill from forehead, .70, from nostril, .35, 

 along gape, .85 ; tarsus, .90; middle toe and claw, .86, claw alone, .26 ; hind 

 toe and claw, .55, claw alone, .25. 



This species is closely related in form to Platycichla hrevipes, 

 Baird, although the lower mandible is rather deeper and stouter, 

 the upper less attenuated viewed from above. The first quill is 

 longer, two-fifths the second instead of one-third, and not quite as 

 much pointed ; the tail is more graduated and emarginated ; the 

 feet much the same. The principal difference, therefore, is in the 

 stouter lower mandible, and less attenuated bill, longer first pri- 

 mary, and more emarginate and graduated tail. 



From Myiadestes armillatus it differs in stiffer tail and falcate 

 acuminate outer primary. With such species, however, as M. 

 obscurus and venezuelensis, it has very close relationships in form, 

 so much indeed that it is very difficult to separate them generically ; 

 the tail feathers are perhaps broader and stiffer, and the bill rather 

 longer and stronger ; the wings and feet are precisely similar. 



The two citations from Lesson, quoted in the synonymy, by Dr. 

 Sclater, hardly appear to belong to this species, but rather to an 

 allied one. The description in " I'Echo" I have not seen, that in 

 " Desc. des Mam. et Ois." shows many discrepancies. 



For the opportunity of examining this species I am indebted to 

 Dr. Sclater. I have seen a second specimen in the museum of the 

 Philadelphia Academy. 



