244 



Murino-bvunneus ; subtus albus, later aliter paulum rufescens : 



cauda nigra, rectrice una utrinque extima sordide brunnea. 

 Long, tota 4*75, alse 1*9, caudse 1*7, rostri a rictu 9*5, tarsi 0'8. 

 Hab. S.E. Brazil (Max.) ; Para {Wallace). 

 Mus. Brit., P. L. S. 



2. Rhamphoc^nus cinereiventris. 



Rhamphoccenus cinereiventris, Sclater, P. Z. S. 1855, p. 76, pi. 87. 



Olivaceo-brunneus ; capitis lateribus rufs, spatio postoculari 

 niffro : gutture albo, nigro-cinerascente striato : abdomine 

 cinerascente, medialiter albescentiore, lateraliter autem olivas- 

 centiore : cauda nig ric anti-fuse a. 



Long, tota 4'0, alte 2*0, caudae 1*3. 



Hab. New Granada, Pasto {Delattre). 



Mus. Derbianum. 



3. Rhamphocenus rtjfiventris. 



Scolopacinus rufiventris, Bp. P. Z. S. 1837, p. 119 ; Gray, Gen. 

 B. i. p. 357. pi. 47. fig. 2. 



Murino-brunneus : capite toto pr&cipue ad latera rufescente : 

 subtus pallid e rufescens : gutture albo, plumis subtus cinereis : 

 cauda nigra, rectricibus tribus extimis albo terminatis, extima 

 etiam in pogonio externo albo limbata. 



Long, tota 5'3, alee 2 - 2, caudae 2"0, rostri a rictu 1*1, tarsi 0*9. 



Hab. Guatimala, Coban {Delattre) ; New Granada, S. Martba 

 ( Verreaux) . 



Mus. Brit., Derb., P. L. S. 



Genus VI. Cercomacra. 



Statura major : ptilosis magis unicolor : forma validior : rostrum 



ad basin dilatation : cauda longa e rectricibus pi erumque decern 



multum graduatis : acrotarsiis divisis, paratarsiis integris. 



These birds form a transition between Formicivora and Pyriglena. 



I have sometimes been inclined to unite them to the latter ; but they 



differ in their broad flattened bill, which in Pyriglena is compressed 



throughout. 



1. Cercomacra c^erulescens. 



Myrmothera ccendesce?is, Yieill. Nouv. Diet. xvii. p. 311 ; Enc. 

 Moth. p. 680. 



Formicivora ccerulescens, Menetr. Mon. Myioth. p. J 99. pi. 6. 

 figs. 1, 2. 



Ellipura cceridescens, Cab. Orn. Not. 1. p. 229 ; Bp. Consp. 

 p. 20 1 ; Burm. Syst. Ueb. iii. p. 67. 



S . Clare cinerea : interscapulii macula celata, eampteriO; tect vi- 

 ctim apicibus et caudce apice albis. 

 2 • Flavicanti-fusca, subtus rufescens. 

 Long, tota 6'0, alae 23, caudae 3*0. 

 Ihib. South-eastern Brazil, prov. of Rio {Mt'netrics). 

 Mus. Brit., P. L. S. 



