119 



basi fissi, valde ina?quales, postico validiore, ungue robusto valde 

 arcuato. 

 Ala; maxime rotundatse ; remigibus l""", 2'*". 3"° sensim longiori- 

 bus ; 4'" cseteris sed vix longiore, omnibus latis. 

 Cauda breviuscula, valde gradata. 



37. ScoLOPACiNus RUFivENTRis, Nob. Sc. brunneo-oUvaceus ; 

 gents et subtiis aurantio-cinnamomeis ; guld albd inferne striis 

 nigris ; remigibus fuscis ; caudd nigra, rectrice extimd maculd 

 transversali, 2"^*^ maculd internd apicali, tertid apice tantum, 

 albis. Rostrum fuscum subtus basi album. 



Longit. 4" 6'"; al. 2"; caud. I" &" ; tars. 10'". 



This bird is closely related to the Troglodytes rectirostris of Swain- 

 son's Zool. 111., t. 140, which, though its bill be shorter than in this 

 our typical species, belongs to the same genus ; which the learned 

 author could not but anticipate when he placed it with the Wrens. 

 A specimen of it in the British Museum wants the white markings 

 on the tail, and has the bill shorter than in our rufiventer. 



Since writing the above, I find that Mr. Sundeval has formed the 

 latter species into a genus, which he named Acontistes. 



38. Caprimulgus vociferus, Wils. Common in the United 

 States. 



39. Penelope vetula, Wagl. P. brunneo-olivacea ; capile col- 

 logue ardesiaceis ; epigastro et ventre albis, crisso vix rufescente ; 

 rectricibus aneo-viridibus, lateralibus apice late albis ; remigibus 

 integris ; tarso digito medio breviore ; meatu nudo, vittd inter- 

 medid subpiloso-plumosd. 



It differs too little from the P. vetula, Wagler, Isis, 1830. p. 1111. 

 sp. 14, for me to venture to make a distinct species. 



III. I subjoin the description of some new or rare species (placed 

 in my hands by Mr. Leadbeater, during my stay in London), from 

 that portion of Brazil bordei'ing on Peru ; and interesting, as further 

 elucidating the Ornithology of that little-known country. I under- 

 stand that they will hereafter form a portion of that valuable collec- 

 tion which belongs to the Earl of Derby. 



1. Crypticus Martii, Nob. C virens, capite, collo, pectoreqtie 

 rufo-fulvis : fascia, oculari, maculisque jugidarihus nigris. 



Momotus platyrhynchus, Leadb. Prionites Martii, Spix. 



A specimen with the middle tail-feathers entire. 



To this new genus of Mr. Swainson will also belong the Momotus 

 superciliosus of Mr. Sandbach, lately described at a meeting of the 

 British Association at Liverpool, 



2. Capito macrodactylus, Nob. C.fusco-brwnneus,pilcocas- 

 tuneo, cervice cinnamomed ; guld juguloqtte albidis, colluri hi- 

 tissimo nigra; abdomine nebuloso. 



Ci/phos macrodactylus, Spix, pi. 39, fig. 2. 



