ALCID.E — THE AUKS — ALLE. 



463 



15. Lunda. Deciduous nasal shield rapidly iiicreasiii;^ in width toward the top, where form- 

 ing an arched and much thickened ridge ; hasid outline of the inaiulihlc convex ; maxil- 

 lary sulci and anterior outline of the nasal sliield with the concave sides anterior ; 

 terminal half of mandible perfectly smooth ; eyelids witliout horny plates ; adult 

 furnished with elongated, pendent, silliy, ornamental supra-auricular tufts. 



Gen IS ALLE, Lixk. 



Allc, Link, Bpschr. Nat.-Siimml. riiiv. Kostoc^k, 1. 1806, 17 (typo, A. ni<jricans, \asv., = Aka alle, 



Linn.). — CoL-Es, Hull. Nutt. Orii. Cluli, IV. Oct. 1879, 214. 

 Merguliis, ViEir.L. Analyse, 1816, 66 (type, Alca allc, Linn.). 



Char. Size small (wing about four and a half inches). Bill very .short and thick, the culmen 

 strongly convex, the gonys exceedingly short (le.ss tiian one third the culiuen) and straight ; 

 mandibular rami widely separated, the interval filled by a very broad, densely feathered area. 



with 



the 



A 



A. nigricans, sumtMr dress . 



e.\tending nearly to the tip of the bill ; na.sal fossa) semicircular, the lower tiiird occupied by the 

 nostril. Head, neck, and upper parts black, tlie under side of the head and neck while in winter ; 

 lower parts white, and scapulars streaked with white, at all stages. 



Tlie single species of this genus is the well-known Sea Dove, or Dovekie, abundant along the 

 coast of New England in winter, but breeding much farther north. 



Alle nigricans. 



THE 8EA-D0VE; DOVEKIE. 



Alca allc, Linn. S. N. cd. 10, I. 1758, 131, no. 6 ; ed. 12, 1. 1766, 211, no. 5. — Wils. Am. Orn. 



IX. pi. 74, iig. 5. 

 Uria allc, Pai.i,. Zoog. Kosso-As. H. 1826, 360. —Afn. Oin. liing. V. 1838, 304, pi. 330. 

 Mcrguhis allc, VlEIl,L. Anidyso, 1816, 66 ; (ial. Ois. 182,-). 236, i)l. 29.5. — Oori.K, B. Kiir. V. 1837, 



pi. 402. —("ASS. in Biurd's B. N. Ain. IS.IS, 018. — Buiiii, Cat. X. Aiu. B. IS-W, no. 738. — 



Coi'Es, Pr. Ac. Nat. Sci. Philad. 1868, 54 ; Key, 1872, 343 ; Check List, 1873, no. 626. 

 A'ca Candida, Bkunn. Orn. Bor. 1764, 26, no. 107 (albino!). 

 Alca alee, Gmel. S. N. 1. 1788, .''.54. 

 Mcrijulus viclaiioleitcas, Leach, .Syst. Cat. ISlt!, 42. 

 Mergulus arctkus, Bueum, Viig. Dciitscld. 1831, 994. 

 Alk niijrkam. Link, Bcschr. Nat.-Sanind. LTniv. liostock. I. 1806, 17. — CorEs, Bull. Nutt. Cm. 



Club, IV. 1079, 244 ; 2a Chock List, 1882, no. 863. — Hiuow. Num. \. Am. B. 1881, no. 752. 



