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ALTRICIAL GKALLATORES — IIER0DI0NE3. 



B. Legs and feet coniparutively short aiitl stout, tlin tarsus with the frontal scutelltc more or less 

 irregular ami interruiiti'd. Ailidt, with the liead and upper portion of necic dark chest- 

 nut, tlie lower neciv and lower jtarts violet-ldai'kish, tiie lesser wing-coverts metallic 

 green and bronzed purple, the back dark metallic green. Yomig, with the head and 

 upper part of neck .streaked with dusky and white, the lower parts dusky, with a violet 

 tinge. 

 3. P. Ridgwayi.1 l-'tjathers round ba-se of bill dusky chestnut, or dark rusty ; lores red- 

 dish in life. AVing, l().ir>-12.00 ; culmen, 3,40-5.10; tarsus, 2.70-3.85; middle toe, 

 1.80-2.30. Hub. Vicinity of Lake Titicaca, Peru ; Chili. 



Plegadis falcinellus. 



THE OLOSST IBIS. 



Tantalm faMneUus, Lixn". S. X. 1. 1701), 241, no. 2 (based on Niimenius rostro aratato, corporc 



caitanen, pcdibus ohscurc. rii'cnlibns, KuAM. Austr. 350. — Numcnius viridis, Biiiss. Av. 5, p. 



326, t. 27, f. 2. —FnlcincUus, Oesx. Av. p. 220, etc.). 

 Ibis fiilciiirlhts, ViEiLL. Xouv. Diet. XIV. 1817, 23. — Hoxai'. Obs. Wils. 1825, no. 190. — Nutt. 



Man. II. 1834, 88. — Aun. Orn. Biog. IV. 1838, COS, pi. 387 ; Synop. 1839, 257 ; B. Am. VI. 



1843, 50, pi. 358 (adult). 

 P!c(jadi.i fdlciiiclhis, "Kalt," FiiiTscn, Viig. Kur. 1869, Tnf. 43, fig. 3, p. 378. — Ridgw. Nom. N. 



Am. B. 1881, no. 503. — Coue.s, C'lieck List, 2d ed. 1882, no. 649. 

 Tantalus castancus, Mi'i.i.El!, S. X. .Suppl. 1776, 112 (adult). 

 Courly, d'llnlie, BrFF. PI. Kid. 1770-84, pi. 819 (adult). 

 Bay Ibis, Penx. Aret. Zool. II. 1785, 460 (adult). 

 Green Ibis, Latu. Synop. III. i. 1785, 113, sp. 13 (young). 

 Glossy Ibis, Lath. t. c. 114, sp. 14 (transition pi.). 

 Tantalus viridis, Omel. S. X. I. 1788, 648, no. 8 (young). 

 Tantalus iyneus, Omel. t. e. 649, no. 9 (adult). 



Falcinellus igncus, GnAV, Gen. B. n\. ■>, 1841, 87. — Elliot, P. Z. S. 1877, 503. 

 "Ibis noir, Savio. Hist. Myth, de I'lbis, p. 36, lig. 4, juv." (Elliot). 

 "Ibis sacra, Tem.m. Man. Orn. 1815, 385" (Elliot). 

 " Tringa autumnalis, Hasselq. It. Pal. deut.sche Ausg. p. 306" (Elliot). 

 " Tantalus Mcxicanus," Or.l). .lour. Pliilad. Acad. 1. 1817, 52 (not of Gmel.). 

 Ibis Ordii, BoxAr. t'ousp. List, 1838, 49. — Cass, in Baird's B. X. Am. 1858, 635 (part). — Baird, 



t'at. X. Am. B. 1859, no. 500. 

 Ibis falcinellus, var. Ordii, foiEs, Key, 1872, 263 ; Check List, 1873, no. 445 ; Birds N. W. 1874, 517. 

 "Ibis guarauna," Cauot, Pr. Boston Soo. II. 1850, 313, 332 (not of LiNN.). 

 " A'umcnius longiroitris," GossE, B. Jam. 1847, p. 348 (not of Wilson). 

 Tantalus bcngalensis, " LlcUT." Bonap. Consp. II. 1855, 158. 

 Ibis percgrina, " Ml'LL." Boiiap. t. c. 159. 



Had. Palffiarctic region, West Indies, and Eastern United States. Of iiTegular distribution, 

 and only locally abundant in America. 



Sp. Char. Adult: Feathers Iwrderinij the base of the hill, all round, blackish. Pileum, cheeks, 

 and chin glossy greenish black, with violet-purple reflections. Hind part of the head, whole neck, 

 anterior part of the back, and anterior half of lesser wing-covert region, rich reddish chestnut, the 

 back d.arkest. Lower parts, except the crissuni, axillars, and lining of tlie wing, uniform bright 

 reddish chestnut, lighter, brighter, and less purplish than the neck. Remaining upper parts, as 

 well as the lining of the wing, axillai-s, and crissum, glossy, metallic, dark purple, green, and 

 bronze ; the posterior part of the back, posterior scapulars, wing-coverts, tertials, rumj), upper tail- 

 coverts, and tail nearly uniform dull violet-purple, changing to bottle-green in certain lights ; aluliv, 



1 Plegadis Ridowayi. 



Falcinellus Ridgwayi, Allex, Bull. Mus. Conip. Zool. III. .July, 1876, 355 (Moho, Conima, and 



Vllquechico, near Lake Titieaca, Peru). — Elliot, P. Z. S. 1877, 506. 

 " Ibis falcinellus, ScL. & Salv. P. Z. S. 1809, 156" (Elliot). 

 ? "Ibis Ordii," TsciiuDi, Fauna Per. 1844, 298. 

 ? Ibis brcvirostris, Peale, Zoiil. Expl. Exp. 1848, 219 (Rimac R., Peru). 



