110 PALCONID^. 



Jv.v. adulto similis, sed nigricanti-brunneus, facie lateraU tota nigricanti-brunnea ; corpore subtus pallide 

 eervino-branneo, plumis fuscescenti-brunneo marginatis ; tibiis, crisso efc subcaudaHbus pallidioribns, 

 concoloribus; cauda nigricanti-brunnea, albo terminata et fasciis duabus albis bmnneo mannoratis notata. 

 Long, tofca circa 17-5, alse 9-0. (Descr. exempl. ex Panama. Mus. Brit.) 



IM. Costa Kica, Talamanca (Gabb^); Panama {Mus. Brit), Line of Railway 

 (M'Leannan ^). — South America, Amazonia ^^'', Guiana K 



This species nearly equals M. melanoleucus in size, and resembles that bird in having 

 the under surface uniformly coloured. It may be distinguished, however, by the absence 

 of any white or rufous collar on the hind part of the neck, and by the uniform white 

 under wing-coverts. There are only three pale bands on the tail, instead of four, as in 

 31. melanoleucus. Within our region, M. mirandollei, so far as at present known, is 

 confined to Costa Rica and the State of Panama. In addition to the specimen obtained 

 by Mr. M'Leannan, there is another from Panama in the British Museum. 



Nothing has been recorded concerning the habits of this species, but they are 

 probably similar to those of the other members of the genus. 



4. Micrastnr guerilla. 



Micrastur guerilla, Cassin, Pr. Ac. Phil. 1848, p. 87' ; Journ. Ac. Phil. i. t. 40==; Scl. & Salv. 



P. Z. S. 1869, p. 367'; 1870, p. 838*; Salv. P. Z. S. 1870, p. 216'; Sharpe, Cat. Birds 



Brit. Mus. i. p. 79'; Ridgw. Pr. Ac. Phil. 1875, p. 4S6'; Sumichrast, La Nat. v. p. 235'; 



Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 126'; Richmond, Pr. U. S. Nat. Mus. xvi. 



p. 520". 

 Micrastur concentricus, Scl. P. Z. S. 1856, p. 285" (nee Less.). 

 Micrastur gilvicollis, Scl. P. Z. S. 1858, p. 96" (nee Vieill.) ; Scl. & Salv. Ibis, 1859, p. 218"; 



Lawr. Ann. Lye. N. Y. vii. p. 317". 

 Micrastur xanthothurax , Scl. P. Z. S. 1859, p. 368" (nee Temm.). 

 Micrastur ruficollis, Scl. & Salv. Ibis, 1859, p. 218 '' (nee Vieill.). 



Supra saturate schistaceas, teetricibus alarum dorso concoloribus, majoribus autem et remigibus brunnescentior- 

 ibns, his intus albo fasciatim notatis ; rectrieibns nigris, anguste albo terminatis et fasciis duabus 

 albidis vel pallide brnnnescentibus notatis ; facie lateral! et gula totis schistaceis ; gastraeo reliquo subtus 

 toto albo et schistaceo-nigro regulariter transfasciato ; tibiis, subcaudalibus, subalaribus et axiUaribus 

 pectore concoloribus et in eodem modo fasciatis. Long, tota circa 130, alae 6'75, caudae 6'1, culm. 0-75, 

 tarsi 2-4. (Descr. maris ex Ilio Coco, Nicaragua. Mus. nostr.) 



2 ad. mari similis, sed magis brnnnescens, cauda lineis angustis albis 4-fasciata ; gastrsei fasciis latioribus et 

 brunnescentioribus. Long, tota circa 13-5, alae 6-9. (Descr. feminae ex La Libertad, Nicaragua. Mus. 

 nostr.) 



Juv. Brunneus, pUeo paullo saturatiore ; torque cervicali albo interrupto ; cauda nigra, albo terminata et 

 anguste albo 4-fasciata : subtus albus, ochraceo lavatus, et fasciis paucis latis nigricautibus notatns ; 

 subcaudalibus albidis, immaculatis ; facie laterali alba, bruuneo maculata, regione parotica postice nigro 

 circumdata. (Descr. feminsB juv. ex Eio Coco, Nicaragua. Mus. uostr.) 



Hob. Mexico, Jalapa {Pease ^, de Oca^^, Edge), Cuesta "de Misantla (if. Trujillo), 

 Orizaba, Uvero {Sumichrast ^), Cordova {Salle ^ ^^) ; British Honduras, Cayo, in 

 the Western District {Blancaneau-r); Guatemala {Skinner ^^, Van Patten'' ^% 

 Vera Paz, Choctum {0. S. & F. B. G.^); Honduras, San Pedro {Whitely^); 



