484 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



measurements of the two series comparing as follows, there being three 

 specimens of each in the collection : 



Eastern spedmciis 



Wing, 3.10-3.35; tail, 2.55; tarsus, 1.05-1.10. 



Chilian examples 



Wing, 3.20-3.25; tail, 2.50-2.70; tarsus, 1.08-1.12. 



Following is the principal synonymy of the species : 



LiCIIEXOPS PERSPICILLATUS. 



f . perspidllatus. 



Le CUgnot, ou Traqiict a lunette, BuFii'., Plist. Nat. Ois. V, 1806, 234. 

 Spectacle Warbler, Lath., Synop. II, 2, 1784, 452, No. 50. 



Motacilla pcrspicillata, Gmel., S. N. 1, 1783, 939 (quotes Buff. & Ijatli., 11. cc."). 

 Sylvia pcrsjncillata, Lath., lucl. Orn. II, 1790, 524. 



a^^nanthe pcrspicillata, ViEiLL., Nouv. Diet. XXI, 1818, 433 (Paraguay). 

 Ada pcrspicillata, D'Orb., Voy. Ois. 1839, 339 (Bolivia). 



Lichenops pcrspicillata, Darwin, Zool. Beag. Ill, 1841, 51, 52, pi. 9 (La Plata). — 

 BoNAP., Consp. I, 1850, 194 (part; La Plata). — Caban. &. Heine, Mus, HeiB. 

 II, 1859, 47 (Brazil).— SCL., Catal. 18G2, 203, No. 1239 (S. Brazil; BoUvia).— 

 SCL. & Salv., p. Z. S. 1858, 141 (Buncos Ayres).— Hudson, P. Z. S. 1869, 432 

 (do.).— Sternberg, J. f. 0. 1869, 2r)2 (do.).— DuRNF.Jbis, 1878, 60 (do.; doscr. 

 nest and eggs). 

 Fluvicola pcrspicillata, D'Orb. & Lafr., Mag. de Zool. 1837, 58.— Hartl., Ind. 

 Azara, 1847, 12, 15. 

 Suiriri chorrcado, Azara, Apuut. Ill, 1805, 453, No. 182. 



Muscicapa 7iigrican8,YlElhl..,'Noiiv. Diet. XXI, 1818, 454 (Paraguay: ex A'ieilL, 1. c); 

 Enc. M6th. 1823, 828. 

 Elainea nigricans, Gray, Gen. I, 1849, 251. 

 Perepicilla leucoptera, Swainson, Jardine's Nat. Libr. X, Flycatchers, 1838, 106, pi. 9 



(quotes "Azara, III, 453"). 

 Lichenops erythroptera, Gould, Zool. Beag. Ill, 1841, 51, 52, pi. 9 (banks of the Plata ; 



quotes " Swainson's Nat. Libr. X, p. 108"). 

 Ada commersoni, Less., Traits, I, 1831, 388 (=<? ad.; Paraguay). 



0. andinus. 



*' Lichenops perspicillatris," Auct. (ex Chili). 



2.— DACNIS PULCHEREIMA, /?. AUEEINUCHA. 



Dacnis jnilcherrima , /?. aurcinucha, EiDGW. MS. 



Ch. — ^Wing, 2.55; tail, l.GO ; bill, from nostril, .43; tarsus, .60; mid- 

 dle toe, .50. Similar to D. pulcherrima, but bill much longer and less 

 conical ; the nuchal crescent deep golden orange, instead of straw-yellow : 

 the chin and throat dull gray, instead of deep black. 



Head (except underneath), anterior portion and sides of back, scapu- 

 lars, and upper tail-coverts deep velvety black; wing-coverts dark 

 ultramarine bliie; remiges and rectrices black, edged with dark blue : 

 inner webs of two outer rectrices with a large terminal patch of white. 



