444 Messrs. O. Salvin and F. DiiCane Godman on 



domiuc medio ciunamomeo, crisso fusco cinnamomeo 

 marginato ; rostro flavo^ pedibus pallide corylinis : long, 

 tota 9*5, alae 4*9^ caudse 4-Oj rostri a rictu 1*15, tarsi 1"3. 

 ? mari similis^ sed gula uigro striata et rostro nigricante 

 distinguenda. 

 Hab. in monte " Roraima " dicto, Guiana Brit. 

 Mus. nostr. 



Obs. T. olivatri ex Venezuela certe affiuis^ sed colore capitis 

 iiigro magis restricto et margine ejus postico male definito 

 facile distinguendus. 



An. interesting Thrush, obtained in some numbers by Mr. 

 Whitely at the foot of Roraima, at an altitude of from 5000 

 to 6000 feet. It is allied to the Venezuelan T. olivater, and 

 may be distinguished from it by the black of the head being 

 more restricted and gradually passing into the colour of the 

 rest of the body, there being no sharp definition between 

 the two colours, as in the allied bird. 



Chlorophonia roraima. 



Clare viridis ; oculorum ambitu, cervice postica et dorso postico 

 toto Isete cseruleis, dorso antico quoquc csernleo, sed viridi 

 intermixto ; fronte et abdomine toto flavis ; rostro nigro, 

 pedibus corylinis: long, tota 4*2, alai 2'5, caudae 1"5, 

 rostri a rictu 0*45, tarsi 0*5 . 

 $ viridis; oculorum ambitu, cervice postica eturopygio tan- 

 tura Cceruleis, abdomine vix flavo tincto. 

 Hab. in monte " Roi'aima " dicto, Guiana Brit. 

 Mus. nostr. 



Obs. C. frontali ex Venezuela affinis, sed dorso antico 

 cseruleo tincto diversa. 



This species has the whole back as blue as in C. viridis 

 and C. longipennis , whilst the nape is more clearly of that 

 colour. On the other hand the forehead is yellow, as in 

 C. frontalis, which, again, has a green back. C roraima thus 

 forms a link between C. viridis and C. frontalis. This fact, 

 however, does not admit of employing the fashionable 

 trinomial nomenclature to these birds, inasmuch as their 

 distribution in isolated mountain-chains renders it highly 

 improbable that any thing like complete fusion exists 

 between them. 



