436 Zuolugical Society : — 



Lafr. R. Z. 1848, p. 9, and C. cceruleifrons, Lafr. R. Z. 1842, p. 302, 

 only differ in age or sex). From Bogota. 



Conh'ostnnn superci/iosum of Hartlaub, R. Z. 1844, p. 215, and 

 Bp. Consp. p. 402. sp. 5, is a true Sylvicola of Swainson, the same 

 as Panda mexicana, Bp. Consp. p. 310, and has of course nothing 

 to do with these birds. 



The only other species that have been referred to this genus, as 

 far as I am aware, are Cyonirostrum ornatvm, Townshend, Ann. Lye. 

 New York, 1851, p. 112, pi. 5. fig. 1, from Texas (the same as 

 jEgithahis jftaviceps of Sundeval, according to Dr. Hartlaub), and the 

 C. fuscum and coloi/iljiaiuim of Lesson, Descr. d. jNIanim. et Ois. 

 pp. 2/3 and 274, none of which I have as yet recognized. 



2. Synallaxis erythrothorax, Sclater. 



S. fuscus, olivaceo-tinchis, capite obscuriore : guthire nigro- 



cinereo : alls extus, nisi parte apicali, tectricibus subalaribus 



et vitta lata pectorali rvfo-castaneis : ventre medio cineras- 



cente, lateribus brunnescenti-olivaceis : cauda brunnea : rostro 



nigro : pedibus brimneis. 



Long, tota 5"3, alee 2*3, caudae 2"5. 



Hub. in America Centrali ; Cohan et Honduras. 



Of this Synallaxis, which seems different from all other members 



of the genus that I am acquainted with, there is a specimen in the 



Derby Museum procured at Cohan by Delattre in 1843. The 



British Museum contains an example from Honduras, and I have a 



single skin in my own collection purchased in Paris, which I believe 



to be from the same locality. The occurrence of species of this 



group north of the Isthmus of Panama seems hitherto lumoticed, 



except by the Prince Charles Bonaparte, in a list of a Guatimala 



collection of birds in the Proc. Zool. Soc. for 1837, p. 118, in which 



he includes the Synallaxis cinerascens of Temminck (PL Col. 227. 



fig. 3). But the characters there given do not at all agree mth 



Temminck's bird, and would seem more applicable to the present 



species. Besides, the true Synallaxis cinerascens is said to be from 



Brazil, and is not likely to occur also m Guatimala. 



In my specimen of the present species the throat is slightly speckled 

 with whitish. 



3. Ramphoc.enus ciNEREivENTRis, Sclater. 



It. olivaceo-brnnneus ; cajntis lateribus rujis, spatio postocidari 

 nigro : alis extus brunnescentibus : gutture albo, nigro-ciueras- 

 cente striato : abdomine cinerascente, medialiter ulbescentiore, 

 lateraliter autem olivascentiore : cauda nigricanti-fusca : rostri 

 mandibula superiore nigrescente, hiijus autem apice et mandi- 

 bula inferiore albidis. 

 Long, tota 4'0, alse 2-0, caudse 1*3. 

 Hab. in rep. Novae Greuadee, Pasto. 



A third species of this peculiar genus, beautifully intermediate in 

 colouring as in locality between the Ramphocfenus melanurus of 

 Brazil and the rujiventris of Central America. When I say a third 

 species, I am perhaps doing an injustice to M. Lesson, who has 



