484 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



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

 specimens of each in the collection : 



Eastern S2)ccimcns 



Wiug, 3.10-3.35; tail, 2.5.5; tarsus, 1.05-1.10. 



CJiUian cxam])J€s 



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



Following is the principal synonymy of the species : 



LiCHEXOPS PERSnCILLATUS. 



a. 2)ers2)iciUatiis. 



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

 Spectacle Warhler, Lath., Synoi). 11, 2, 1784, 452, No. 50. 



Motacilla 3)crs2)icillata, Gmel., S. N. 1, 1788, 933 (quotes Buff. & Ijatli., 11. cc). 

 Sijlvia persincillata, Lath., lud. Orn. II, 1790, 524. 



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

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



Lichenoids persincillata, DARWi>f, Zool. Beag. Ill, 1841, 51, 52, pi. 9 (La Plata).— 

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

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

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

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

 nest aud eggs). 

 Fluvicola pcrspicillata, D'Orb. & Lafr., Mag. dc Zool. 1837, 58.— Hartl., lud. 

 Azara, 1847, 12, 15. 

 Sitiriri cliorreaclo, Azara, Apunt. Ill, 1805, 453, No. 182. 



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

 Euc. M6tli. 1823, 828. 

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

 Perspicilla Icucoptera, Swainson, Jardiue's Nat. Libr. X, Flycatclaers, 1838, 106, pi. 9 



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

 Liclicnops crijthroptcra, Gould, Zool. Beag. Ill, 1841, SI, 52, i>1.9 (banks of the Plata; 



quotes " Swaiusou's Nat. Libr. X, p. 106"). 

 Ada commersoni, Less., Traitd, I, 1831, 388 {--=S' atl-; Paraguay). 



p. andinits. 



'^Liclienops perspicillatus,^' Auct. (ex Chili). 



2.— DACNIS PULCHEERIMA, /?. AUPtEINUCHA. 

 Dacnis pulchcrrima, /?. aurcinucha, Ridgav. MS. 



Ch. — ^Ymg, 2.55; tail, l.GO ; hill, from nostril, .43; tarsns, .00; mid- 

 dle toe, .50. Similar to D. piilcherrima, hut hill 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 x^atch of white. 



