508 MR. D. G. ELLIOT ON THE IBIDINjE. [June 5, 



third extremely compressed laterally and forming a distinct elevated 

 ridge above the maxilla. Nostrils set in a membrane at the base of 

 culmen. Secondaries as long as the primaries, extending three fourths 

 the length of the tail. Middle toe and tarsus of equal length ; outer 

 toe longer than inner. 



Skin around base of bill, extending backwards and including the 

 eye, denuded of feathers, in the skin jet black. Feathers on top of 

 head dark green, in some lights with a coppery tinge. From the 

 occiput springs a long loose crest, dark metallic grass-green, central 

 part of some of the feathers dark buff. Upper parts bright shining 

 olive-green, coppery in some lights. Neck and entire underparts 

 rich dark buff, every feather edged with dark olive-brown. "Wings 

 bright metallic shining grass-green. Primaries and secondaries 

 Prussian blue. Under tail-coverts dark grass-green. Bill bright red. 

 Feet and legs red. 



Total length without bill 16^ inches ; wings 10|^, tail 6, bill along 

 culmen 4|, tarsus 2. 



Young similar to the adult, but wants the brilliant colouring of the 

 wing, which is a dark green with Prussian-blue primaries and second- 

 aries ; and the underparts are dark olive-brown, with an occasional 

 deep buff centre among the feathers. 



The specimens'described are in the collection of my friend Capt. 

 Shelley. 



24. EUDOCIMUS ALBTJS. 



Tantalus alhus, Linn. Syst. Nat. (1766) p. 242. sp. 6; Gmel. 

 Syst. Nat. (1788) p. 651. sp. 6; Lath. Ind. Orn. (1790) vol. ii. 

 p. 705. sp. 9 ; Wils. Am. Orn. (1814) vol. viii. pi. 66 ; Bon. Wils. 

 Am. Orn. (1832) vol. iii. p. 64, pi. Ixvi. fig. 3. 



Gourlij hlanc d'Amerique, Buff. PI. Eul. no. 915. 



Scolopax alba, Bodd. Tab. PI. Enl. Daubent. (1783) p. 55. 



TFMte Ibis, Lath. Gen. Syn. (1783) vol. iii. p. 3. sp. 9. 



Tantalus albus, var. b, Lath. Ind. Orn. (1790) vol. ii. p. 705. 



Tantalus coco, Jacquin, Beyt. Gesch. Vog. (1784) p. 13. sp. x. ; 

 Gmel. Syst. Nat. (1788) vol. i. p. 652. sp. 15. 



Ihis alba, Vieill. Nouv. Diet. Hist. Nat. (1817) vol. xvi. p. 16; 

 id. Ency. Meth. tom. iii. p. 1 145 (1823) ; Wagl. Syst. Av. (1827) 

 sp. 5; Less. Trait. Ornith. (1831) p. 567, sp. 5; Wagl. Isis (1832) 

 p. 1231 ; Nuttall, Orn. U. S. (1834) vol. ii. p. 86; Bon. Comp. 

 List (1838) p. 49. sp. 317 ; Aud. B. Amer. Bvo ed. (1842) vol. vi. 

 p. 54, pi. 360 ; id. Orn. Biog. vol. vii. p. 173, vol. v. p. 593 ; G, R. 

 Gray, Gen. Birds (1847) vol. iii. p. 565. sp. 2; Baird, B. N. 

 Amer. (1860) p. 684; Schleg. Mus. P.-Bas (1863) livr. 4, p. 5 ; 

 Gray, Hand-1. Birds (1871) pt. iii. p. 38 ; Gundl. J. f. O. (1871) 

 p. 272 ; Sclat. & Salv. Nomencl. Av. Neot. (1873) p. 126. 



Ibis coco, Vieill. Nouv. Diet. Hist. Nat. (1817) vol. xvi. p. 19 ; id. 

 Ency. Melh. (1823) tom. iii. p. 1148. 



Ibis longirostris, Wagl, Isis (1829) p. 760 ; G. R. Gray, Gen. 

 Birds (1847) vol. iii. p. 565. sp.3, pi. 152; id. Hand-1. Birds (1871) 

 pt. iii. p. 39. 



