HETERORniNA. 



117 



Heterorhlna leiicogticta. 



t'yphorinus leucostict is, Cab. Wiegm. Archiv, 1847, i, 206 (Guiana and 

 Mexico). — ScLATEB, P. Z. S. 1858, 63, 96. — Lawbence, Ann. N. Y. 

 Lyo. VII, 1861, 320 (Panama). 

 Hab. Isthmus of Panama, to Guiana and Ecuador. 



A specimen from Panama, in Mr. Lawrence's collection, labelled 

 C. leucostictus, has the breast and belly pure white like the throat, 

 and the white spots on side of head larger. The size is considerably 

 less than in prostheleucua, while the tarsi are longt;r. The shoulders 

 are less spotted with white. 



Another specimen from the Napo (32,G93), labelled G. leucostictus, 

 differs from the last in having a longer, slenderer bill. The whole 

 top of head is black ; the black bars on the inner or superior secon- 

 daries are quite obsolete, those on the outer webs of the exterior 

 ones being changed to dentations. The spotting of the shoulders is 

 restricted to the alular feathers and edge of the shoulders. 



Cabanis, in his description of G. leucostictus, gives Guiana and 

 Mexico as localities, thuti refeiTing also to G. prostheleucus. The 

 small size of the specimen described, and the whiteness of all the 

 under parts, would appear to show that the description was based 

 on the Guiana specimen. 



(No. 90, from Panama.) Total length, 3.50 ; wing, 2.00 ; tail, 1.30 ; exposed 

 portion of 1st primary, .75, of 2d, 1.25 ; length of bill from forehead, .67, from 

 nostril, .43, along gape, .76 ; tarsus, 90; middle toe and claw, .73 ; hind toe 

 and claw, .62. 



(No. 32,693, from the Napo.) Total length, 4.00; wing, 2.10; tail, 1.30; 

 length of bill from forehead, .73, from nostril, .45, along gape, .83 ; tarsus, 

 .91; middle toe and claw, .76. 



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Heterorhlna grlseicollls. 



Merulaxis griseicoUig, Lapresrate, Rev. Zool. 1840, 103 (Bogota). — 

 Cyphorinus griseicoUis, Sclater, P. Z. S. 1860, 64 (Ecuador). 



Ilah. Ecuador ; Bogota ; Guatemala to Mexico ? 



(30,658.) Above reddish-brown, with the top of head and nape grayish- 

 olive. Chin and upper part of throat white, passing insensibly into plumbeous 

 gray on the remaining under parts, excepting sides of belly and crissum, which 

 are reddish-browu like rump. A distinct white line from bill over eye to nape, 



