1866.] MR. O. SALVIN ON NEW BIlfDS FROM VERAGUA.. 71 



differs from both in having a membrane partially covering the nos- 

 tril. Heterorhina appears to be a section of Thryothorus, differing 

 -from it by its proportionately shorter tail and stronger legs. (See 

 Baird's remarks on the subgeneric characters of the American 

 Wrens.) 



The subjoined list gives the chief references to the several mem- 

 bers of this genus : — 



(1.) Microcercultjs bambla (Bodd.), ex Buff. PI. Enl. 



Cyphorhinus (Microcerculus) bambla, Scl. Cat. no. 120; ex 

 Cayenna. 



(2.) M. Philomela, Salv. P. Z. S. 1861, p. 202 (nee Lawr., nee 

 omnino Baird) ; ex Vera Pace. 



(3.) M. albigtjlaris, Scl. P. Z. S. 1865, p. 67 ; Cat. no. 122; 

 ex Fl. Napo. 



(4.) M. luscinia, Salr, ex Veragua et Panama. 



Cyphorhinus philomela, Lawr., et M. philomela, Baird, Rev. Am. 

 Birds, p. 114 (partim). 



(5.) M. marginatxjs, Scl. P. Z. S. 1855, p. 145 ; ex Peru et Bo- 

 gota. 



M. philomela is a wonderful songster ; I have often listened to 

 it ; the note is higher and clearer than that of any bird I know. 



3. Euphonia rufivertex, sp. n. (PI. VII.) 



d • E. supra nitenti-purpurascenti-nigra, pileo toto etfronte rufo- 

 castaneis, hoc paulo flavidiore : loris, capitis lateribus et gut- 

 ture purpurascenti-nigris : subtus jiava, medialiter aurantiaca : 

 crisso albo : alis nigris, tectricibus ccerulescente marginatis, tec- 

 tricibus subalaribus a/bis : macula in pogonio interna duarum 

 rectricum utrinque extimarum alba, rectricibus reliquis nigris : 

 rostro et pedibus nigris. 

 $. Supra olivaceo-viridis, nucha plumbea, fronte rufo tincta : 

 alis et cauda fusco-nigris, extus olioaceo-viridi marginatis : 

 subtus cinerea : ventre imo et crisso dilulutioribus : mento et 

 corporis lateribus flavo-olivaceis : rostro et pedibus plumb eis. 

 cJ. Long, tota 3-/5 poll., alse 2 - 5, caudse 1"5, tarsi - 65, rostri a 

 rictu "4. 



Hab. in Veragua et Costa Rica. 



Obs. Affinis E. ruficipiti, Laf. et D'Orb. ex Bolivia, sed pileo toto 

 rufo-castaneo et crisso albo dignoscenda. 



The white marking of the tail on the outermost rectrix extends to 

 the inner margin of the web, but not to the extremity, and is about 

 one-third of the length of the whole feather. The spot on the second 

 rectrix is quite surrounded by black. 



A single specimen received in a former collection from Arce, from 

 Turrialba iii Costa Rica, had been labelled by me, with doubt, E. 

 gracilis, Cab. The specimen is in quite young plumage, and on re- 



