73 



bird, and I have therefore adopted for it Lichtenstein's term mutus, 

 by which it is known in the Berliu museum. In fact, the names 

 superciliaris and carulescens have been applied to so many of tbis 

 group of species, and the original descriptions upon wbich these 

 terms ręst are so indefinite, tbat it only produces further confusion 

 to continue to employ tbem. 



The Saltator mutus is rare in coUections. Besides the example at 

 BerUn I have only seen the specimens coUected by Mr. "Wallace in 

 the neigbbourhood of Para, from one of wbich my characters are 

 taken. It is distinguished from all its aibes by the uniform blackish- 

 gray colouring of the plumage, the šame below as above, only much 

 Ughter and more white, witbout any tinge of green, brown or rufous, 

 €xcept 011 the crissum. The snpercilia only extend to the top of 

 the eye. The bill is deep black and more elongated than in its 

 congeners. 



9. Saltator azar.e. 



Saltator azarte, d'Orb. Voy. p. 287 : Bp. Consp. p. 490. 



Supra nigricanti-cinereus, dorso virescente tincto : alis nigricantibus 

 cinereo limbatis : superciliis curtis et gutture medio albis, koc 

 anguste nigro marginato : abdomine summo albescente, cinereo et 

 ochraceo tincto, imo autem cinnamomescenli-ochraceo. 



Long. totą 9'0, alae 4*3, candse 4*3. 



Hab. Bolivia, prov. Moxos and S. Cruz de la Sierra (d'Orb.). 



Mus. Brit., Paris. 



The closest ailies of tbis bird are certainly <S. grandis and oJi- 

 vuscens, particularly the latter ; but it is larger than eitber of tbem. 

 From S. olivascens it may be also known by its cinereous back, 

 having ratber a greenish than a brownish tinge, and a deeper cin- 

 namomeous colouring extending from the vent up to the middle of 

 the belly, which in the S. olivascens is nearly wbite. From 

 S, grandis it differs in its shorter bill and narrovv throat-stripes, be- 

 sides its superior size. 



10. Saltator cerulescens. 



Habia ceja blanca, Azara, Pax. i. p. 344. 



Saltator ccerulescens, Vieill. Nouv. Dict. xiv. 105, et Enc. Meth. 

 p. 791 ; Hartl. Ind. Az. p. 6 ; d'Orb. Voy. p. 287. 

 "Saltator superciliaris, Spix," d'Orb. ib. 



Fusco-brunneus, virescente paululum tinctus, alis extus olivaceo 

 marginatis : subtus cinerascenti-albus : gutture medio albo, utrin- 

 que nigro marginato : ventre et crisso rufescente indutis, crisso 

 saturatiore : superciliis a fronte ad nucham albis. 

 Hab. Paraguay (Azara) ; Corrientes in rep. Arg. (d'Orb.). 

 Mus. Parisiensi. 



I have only seen one specimen of tbis species, wbich is in the 

 Paris Museum, and was brought by d'Orbigny from Corrientes. It 

 is certainly very closely allied to the Bolivian 'azara.' But the bill 

 is shorter and thicker, and there is a greenish colouring on the back 



