56 ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



Genus.— AGRIORNIS. Gould. 



Tyrannus, Eyd. fy Gerv. 

 Pepoaza, D'Orb. § Lafr. 



Rostrum longitudine capitis, rectum, forte, compression, abrupte deflexum, emargi- 

 natum; tomiis rectis integris; naribus basalibus, later alibus, rotundis, patulis; 

 rictu pilis rigidiusculis obsesso. Alee mediocres, remige prima longd, tertid quartdque 

 tequalibus, longissimis. Cauda mediocris, quadrata. Tarsi longi, fortes, squamis 

 crassis annulati ; digito ungueque postico mediano breviore, lateralibus cequalibus, 

 liberis. 



Mr. Gould observes that the members of this genus are remarkable for their 

 robust form and for their strength and magnitude of their bills ; and their habits 

 strictly accord with their structure, as they are fierce and courageous. 



The species are closely allied to those of the preceding genus.* 



1. Agriornis gutturalis. Gould. 



Tyrannus gutturalis, Eyd. $ Gerv. Voyage ue la Fav. Ois. dans Mag. de Zool. 1836. pi. 1 I. 

 Pepoaza gutturalis, D'Orb. $ Lafr. Mag. de Zool. 1837. p. 64. 



My specimens were obtained near Valparaiso in Chile. I saw it as far 

 north as the valley of Copiapo. 1 was assured by the inhabitants that it is a very 

 fierce bird, and that it will attack and kill the young of other birds. 



2. Agriornis striatus. Gould. 



A. Teem, intense olivaceo-brunnea ; alis caudaque fuscis, utriusque plumis marginibus 

 apiceque pallide brunneis ; rectricum externarum pogonid externa alba; gutture 

 facieque lateribus albis, his nigrostriatis ;pectore hypochondr Usque olivaceo-brunneis ; 

 ventre crissoque flavescentibus. 



Long. tot. 10 unc. ; alee, 4^; mudw, 4^L; tarsi, 1-^ ; rostri, 1^. 



Head, and all the upper surface dark olive brown ; wings and tail dark brown, 

 each feather margined and tipped with pale brown, and the outer web of the 

 external tail-feather, white ; throat, and sides of the face, white, striated with 



* Perhaps to this genus belong Muscicapa thamnophiloides and cinerea, figured by Spix, in his Aves, 

 pi. 26. f. 1 and 2. G. ft. Gray. 



