304 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



mala). — Baird, Brewer, and Ridgway, Hist. N. Am. Bircb, i, 1874, 580, 



footnote. — Salvin and Goodman, Biol. Centr.-Am., Aves, i, 1886, 374, pi. 



26, fig. 1 (Volcan de Fuego, 10,000-12,000 ft.; Volqan de Agua, 10,000-12,000 



ft.; Altos, Quezaltenango, and Totonieapan). — Sharpe, Cat. Birds Brit. 



Mus., xii, 1888, 656. 

 J-luncol alticola Ridgway, Man. N. Am. Birds, 1887, 424. 

 [Junco] alticola Gray, Hand-list, ii, 1870, 98, no. 7373. — Sclater and Salvix, 



Norn. Av. Neotr., 1873, 32. 

 {Junco hyemalis'] yar. alticola Ridgw.vy', Am. Nat., vii, Oct., 1873, 613. 

 [Junco cinerem] var. alticola Baird, Brewer, and Ridgway, Hist. N. Am. Birds, 



i, 1874, 580. 

 [^Junco caniceps] var. alticola Henshaw, Rep. Orn. Spec. Wheeler's Surv., 1873 



(1874), 113 (crit.). 



JUNCO VULCANI (Boucard). 

 IRAZTJ JtlNCO. 



Adult {sexes alike). — Pileimi and hindneck o-rayish olive, sometimes 

 obsoletely streaked with darker; lores dull black oi slate-black; rest 

 of head and neck plain mouse gray, tinged with olive on auricular 

 region, paling into smoke gray on malar region, chin, and throat, the 

 same color continued backward over chest, breast, and sides, the 

 flanks more olivaceous and abdomen palei;, somewhat tinged with pale 

 buffy; under tail-coverts butfy olive, broadly margined with pale ))utiy 

 or whitish; back, scapulars, rump, and- upper tail-coverts olive, the 

 back and scapulars broadly streaked with black; wings and tail dusky, 

 with olive edgings, these rather browner on greater wing-coverts and 

 tertials; lateral rectrices without any detinite white area, but with an 

 irregular paler blotch on terminal portion of inner web, and both webs 

 often (always in fresh plumage?) terminated by a small whitish spot; 

 maxilla brown, mandible paler (pinkish in life?); ii'is yellow; legs and 

 feet pale brownish (pink or flesh colored in life?); length (skins) 161.29- 

 166.62 (161.08); wing, 71.68-80.26 (77.22); tail, 69.09-73.15 (71.12); 

 exposed culmen, 13.21-13.72 (13.16); depth of bill at base, 7.62-8.38 

 (8.13); tarsus, 25.91-27.69 (27.18); middle toe, 17.27-18.29 (17.78).^ 



Volcano of Irazu, Costa Rica, above timber line (10,000 feet). 



Zonotrichia vulcani BovcAKB, Proc. Zool. Soc. Lond., 1878, 57, pi. 4 (Volcan de 

 Irazii, Costa Rica, alt. 10,000 ft.; coll. A. Boucard). — Sal-vin and Godman, 

 Biol. Centr.-Am., Aves, i; 1886, 371, pi. 26, fig. 2.— Sharpe, Cat. Birds Brit. 

 Mus., xii, 1888, 602. 



Junco vulcani Ridgway, Proc. U. S. Nat. Mus., i, Dec. 10, 1878, 255 (summit of 

 Irazu; crit.). — Zeledon, Cat. Aves de Costa Rica, 1882, 9; An. Mus. Nac. 

 Costa Rica, i, 1887, 111 (Volcan de Irazu).— Nutting, Proc. U. S. Nat. Mus., 

 V, 1883, 495 (summit of Irazu; habits, etc.). 



^ Three specimens — one male, one female, the other with sex underterniined. 



