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Show 130 MESSRS. SCLATER AND SALVIN ON THE ASTURIN/E. [Feb. 1 1, occupying a distinct area, as will be seen by reference to our notes below. (3) The isolated species A. leucorrhoa, which appears to be a true Asturina in structure, but in plumage forcibly calls to mind the Buteo brachyurus, Vieill. The latter bird has likewise been referred by some authors to Asturina-but, from its lengthened wings, should, we think, be either placed with Buteo or stand by itself under the designation Buteola, proposed for it by Bonaparte from D u Bus's M S. The subjoined table may, perhaps, assist in distinguishing the seven species in their adult dress : - A. Supra cinereae aut fuscae: subtus plus minusve transfasciatae. ct. rem. prim, pogoniis internis albis nigro transfasciatis: [ supra transfasciata 1. nitida. \supra unicolor 2. pfagiala. b. rem. prim, pogon. int. rufis nigro transfasciatis: «'. caudre fasciis cinereis: f tibiis albis, cinereo transfasciatis 3. magnirostris. \ tibiis fulvis rufo transfasciatis 4. nattereri. 1/. caudae fasciis rufis: gula et pectore cinereis 5 ruficauda. gula obscure fusca, pect. albicante 6. gularis. B. Supra et subtus unicolor nigra 7. leucorrhoa. 1. ASTURINA NITIDA. Falco nitidus, Lath. Ind. Orn. i. p. 40. Asturina cinerea, Vieill. Analyse, p. 68; N. D. iii. p. 41 ; E. M. p. 1260, et Gal. Ois. t. 20. Falco striolatus, Max. Beitr. iii. p. 209 ; Temm. Pl. Col. 87 (ad.) et 294 (jr.). Astur nitidus, D'Orb. Voy. Ois. p. 95 ; Burm. Syst. Ueb. ii. p. 68 ; Leotaud, Ois. Trin. p. 46. Asturina nitida, Cab. in Schomb. Guian. iii. p. 737; Pelz. Orn. Bras. p. 3 ; Scl. et Salv. P. Z. S. 1864, p. 369, 1867, p. 589, 1868, p. 173; Lawr. Ann. L. N. Y. vii. p. 316; Scl. P. Z. S. 1860, p. 288. Supra in fundo alba, dorso toto et alis extus grisescentioribus ; schistaceo frequenter transfasciata .- gula alba. Junior, tibiis •rufescentibus immaculatis. Hab. Panama (M'Cleannan); Western Ecuador (Fraser); Bogota (Mus. S.-G.); Venezuela (Goering); Trinidad (Leotaud); Cayenne (Buffi); British Guiana (Schomb.); Lower Amazons (Wallace); Barra, Borba, Cuyaba et Araguay (Natterer); Wood-region of S.E. Brazil (Max. et Burm.). This well-known species is, as will be seen from our list of localities, widely distributed in South America. The most northern point from which we have seen examples is the isthmus of Panama, where many specimens have been procured by M'Cleannan and Arce. In Costa Rica the next species replaces it. 2. ASTURINA PLAGIATA. Asturina nitida, Cassin, in Baird's Birds of N. Am. p. 35 ; Scl. |