484 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



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

 specimens of each in the collection : 



Eastern specimens 



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 : 



LlCHENOPS PERSPICILLATUS. 



a. perspicillatus. 



Le Clignot, ou Traquet a lunette, Buff., Hist. Nat. Ois. V, 1806, 234. 



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



Motacilla perspicillata, Gmel., S. N. 1, 1788, 989 (quotes Buff. & Lath., 11. cc). 



Sylvia perspicillata, Lath., Tnd. Orn. II, 1790, 524. 



(Enantlie perspicillata, Vieill., Nouv. Diet. XXI, 1818, 433 (Paraguay). 



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



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

 Bonap., Consp. I, 1850, 194 (part; La Plata).— Cab an. & Heine, Mus. Heiu. 

 II, 1859, 47 (Brazil).— Scl., Catal. 1862, 203, No. 1239 (S. Brazil; Bolivia).— 

 Scl. & Salv., P. Z. S. 1858, 141 (Buneos Ayres).— Hudson, P. Z. S. 1869, 432 

 (do.).— Sternberg, J. f. 0. 1869, 262 (do.).— Durnf., Ibis, 1878, 60 (do.; deser. 

 nest and eggs). 



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

 Azara, 1847, 12, 15. 

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



Muscicapa nigricans, Vieill., Nouv. Diet. XXI, 1818, 454 (Paraguay; ex Vieill., 1. c); 



Enc. M<5th. 1823, 828. 

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

 Pcrspicilla lencoptcra, Swainson, Jardine's Nat. Libr. X, Flycatchers, 1838, 106, pi. 9 



(quotes ' 'Azara, III, 453''). 

 Lichcnops crythropiera, Gould, Zool. Beag. Ill, 1841, SI, 52, pi. 9 (banks of the Plata ; 



quotes " Swaiuson's Nat. Libr. X, jx. 106"). 

 Ada commcrsoni, Less., TraitC, I, 1831, 388 {—i ad.; Paraguay). 



0. andinu8. 



il Lichenops perspicillatus," Auct. (ex Chili). 



2.— DACNIS PULCHERRIMA, /?. AUREINUCHA. 



Dacnis pnlchcrrima, fi. aureinucha, RiDGW. MS. 



Oh. — Wing, 2.55 j tail, 1.60; bill, from nostril, .43 ; tarsus, .GO; 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 blue; remiges and rectrices black, edged with dark blue ; 

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



