Genera and Species of Birds. 421 



tensis, GmeLy Azara, no. 90), but differs in the lower mandible 

 being yellowish instead of orange, the white line over the eye, 

 the longer and more cuneate tail, and the shorter tarsus and 

 claws. 



A white line from the nostrils surrounds the eye. Upper parts 

 greenish olive, brightest on the wings and tail; shafts of the 

 feathers on the crown black. Lores, cheeks and sides of neck 

 olive-gray. Lower parts pale fulvous, tinged with gray on the 

 breast. Upper mandible fuscous, lower yellowish; legs pale 

 brown. 



Total length 8^ inches ; beak to gape 9 lines, to front 8 lines ; 

 wing 3 inches; medial rectrices 4 inches, external %~ inches; 

 tarsus 1 inch ; middle toe and claw 11 lines, hind ditto 8^ lines. 



Orthogonys, Strickl. (^6pQ6s, rectus, ywvvs, gonys.) 



Rostrum elongatum, compressiusculum, culmine obtuse carinato, 

 a basi ad apicem curvato, commissura satis decurvata, tomiis paulo 

 inflexis, maxilla vix emarginata, gonyde rectissima, nee ascendente. 

 Nares ovatse subbasales, pilis raris frontalibus tectse. Alse medio- 

 cres, remigibus 2, 3, 4, subsequalibus, P paulo breviore. Cauda me- 

 diocris, rotundata. Tarsi subbreves, acrotarsiis scutellatis, para- 

 tarsiis integris ; digiti mediocres, externus internum paulo superans, 

 ungues satis curvati, acuti. 



The general habit of this bird suggests the idea of a Tana- 

 grine form, but it is distinguished from all the genera which I 

 know by its elongate beak, much curved culmen, and perfectly 

 straight gonys. The beak is somewhat like that of Lamprotes, 

 but is not so high and compressed. 



Orthogonys viRiDisYSpix). 



Tanagra viridis, Spix, Av. Braz, pi. 48. f. 2. 

 0. genis et corpore supra olivaceo-viridi unicolore, subtus Isete flavo, 

 pectore et hypochondriis olivaceo tinctis, rostro nigro, pedibus 

 brunneis. 



Inhabits Brazil. 



Body wholly olive-green above, beneath yellow, tinged with 

 olive on the breast and sides. Beak black ; legs light brown. 



Total length 8 inches ; beak to gape 10 lines, to front 9 lines, 

 breadth and height 3^ lines ; wing 3| inches ; medial rectrices 

 3i inches, external 3 inches 2 lines ; tarsus 10 lines ; middle toe 

 and claw 10 lines, hind ditto 8 lines. 



