8. C. leucognaphalus.[53] Nostrils well concealed by the longer, but rather scant, nasal bristles. Entirely violaceous-black, the feathers of the neck all round, breast and sides, pure white below the surface. Wing, 12.50; tail, 9.00; culmen, 2.45; depth of bill, .95; tarsus, 2.15; middle toe, 1.50; graduation of tail about 1.25. Wing-formula, 4, 5, 3, 6, 2; first quill much the shortest. Hab. Porto Rico.

b. Tarsus about equal to bill.

9. C. jamaicensis.[54] Nostrils just covered by the short but dense tuft of nasal bristles. Entirely dark sooty-plumbeous, inclining to black on the head, wings, and tail, where is a very faint violaceous gloss. Wing, 9.50; tail, 6.50; culmen, 2.00; depth of bill, 1.70; tarsus, 2.05; middle toe, 1.35; graduation of tail, about .60. Wing-formula, 5, 4, 3, 6, 2; first shortest. Hab. Jamaica.

Corvus corax, var. carnivorus, Bartram.

AMERICAN RAVEN.

Corvus carnivorus, Bartram, Travels in E. Florida, 1793, 290.—Baird, Birds N. Am. 1858, 560, pl. xxi.—Cooper & Suckley, 210, pl. xxi.—Coues, P. A. N. S. 1866, 225.—Lord, Pr. R. A. Inst. IV, 1864, 121 (British Columbia).—Dall & Bannister, Tr. Ch. Ac. I, 1869, 285 (Alaska).—Cooper, Orn. Cal. I, 1870, 282.—Samuels, 355. Corvus corax, Wilson, Am. Orn. IX, 1825, 136, pl. lxxv. f. 3.—Bonap. Obs. Wils. 1825, No. 36.—Ib. Syn. 1828, 56.—Doughty, Cab. N. H. I, 1830, 270, pl. xxiv.Rich. F. B. Am. II, 1831, 290.—Nuttall, Man. I, 1832, 202.—Aud. Orn. Biog. II, 1834, 476, pl. ci.—Ib. Syn. 1839, 150.—Ib. Birds Am. IV. 1842, 78, pl. ccxxiv.Heerm. X, S, 54.—Finsch, Abh. Nat. III, 1872, 40 (Alaska). Corvus cacalotl, “Wagler,” ? Bonap. Pr. Zoöl. Soc. 1837, 115 (perhaps true cacalotl).—Ib. List, 1838 (probably not of Wagler).—Ib. Conspectus, 1850, 387.—Maximilian, Reise innere Nord Amer. II, 1841, 289 (does not consider it different from European).—Newberry, P. R. R. Rep. VI, IV, 1857, 82. Corvus lugubris, Agassiz, Pr. Bost. Soc. N. H. II, Dec. 1846, 188.—Ib. Caban. J. VI, 1858, 195.—Baird, Birds N. Am. 1858, 563, pl. xx.—Kennerly, P. R. R. X., b pl. xxii. Corvus, var. littoralis, “Holböll, Kroger Tidsk. IV, 1843, 390.”—Schlegel, note on Corvus.

Sp. Char. Fourth quill longest; third and fifth about equal; second between fifth and sixth; first nearly equal to the eighth. Length, about 24.00 or 25.00; extent, 50.00 to 51.00; wing, about 17.00; tail, 10.00. Tail moderately graduated; the outer feather about 1.60 to 2.40 inches less than the middle. Entirely glossy black, with burnished violet reflections.

Hab. Entire continent of North America. Rare east of the Mississippi. South to Guatemala.

Corvus carnivorus.