770 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Phaleris pygmaza (not Alca pygmxa Gineliu) Brandt, Bull. Ac. St.-Petorsl) , 

 ii, 1837, 347. 



Simorhynchus pygmxiis Schlegel, Mus. Pays-Bas, vi, no. 33 (Urinatores), 1867, 

 23. — Seebohm, Ibis, 1884, 31 (Hakodate, Japan; crit.). 



Cerorhinca occidentalis? (not Cerorhinca occidentalis Bonaparte) Vigors, Zool. 

 Voy. 'Blossom,' Birds, 1839, 33 (St. Lawrence Island, Bering Sea; crit.). 



Phaleris nodirostra Bonaparte, Geog. and Comp. List, 1838, 66 (based on Audu- 

 bon, pi. 402). 



Phaleris nodirostris Audubon, Orn. Biog., v, 1839, 101, pi. 402, fig. 3 (first descrip- 

 tion); Synopsis, 1839, 346; Birds Am., 8vo ed., vii, 1844, 255, pi. 468.— 

 Gray, Gen. Birds, iii, 1848, pi. 175". — Reichenbach, Natatores, 1850, pi. 6, 

 figs. 2704, 2705; pi. 7, figs. 2224, 2225. 



P[aleris] nodirostris Gray, Gen. Birds, iii, 1848, 638. 



Ciceronia nodirostris Reichenbach, Natiirl. Syst. Vog., 1852, p. iii. 



Mergulus, sp. inc. Blakiston and Pryer, Ibis, 1878, 210. 



Genus ALCELLA Stone. 



Alcella Stone, Auk, xxiv, April, 1907, 198, in text. (Type, by original desig- 

 nation and monotypy, Alca pygmsea Gmelin.) (See Allen, Bull. Am. Mus. 

 N. H., xxiii, 1907, 292; xxiv, 1908, 15.) 



Small Phalerinse (wing 103.5-116 mm.) with bill small, without 

 obvious deciduous accessory pieces, the culmen strongly convex; 

 adults in breeding season with a long and slender recurved frontal 

 crest, filamentous, recurved superciliary plumes, and elongated 

 filamentous or slenderly acicular plumes from rictus across cheeks 

 and from lower-posterior margin of eye across auricular region. 



Bill relatively small and stout, the strongly arched culmen less than 

 half as long as tarsus, its width at frontal antia decidedly less than its 

 depth at same point, and about equal to distance from nostril to tip 

 of maxilla; gonys nearly straight, strongly inclined upward toward 

 tip, about as long as distance from nostril to tip of maxilla, its base 

 forming a prominent angle; maxillary tomium nearly straight except 

 near base, where distinctly recurved, distinctly notched sub terminally ; 

 mandibular tomium straight, faintly notched terminally; nostril 

 longitudinal, narrowly ovate or nearly linear, in extreme lower edge 

 of nasal fossa, overhung by a broad corneous or semicorneous oper- 

 culum with reflexed lower edge; frontal antia more anterior than 

 posterior end of nostril (but posterior to middle of the latter), not 

 indented at base of culmen; malar antia nearly on vertical line with 

 posterior end of nostril, the mental antia about on line with middle of 

 nostril. Wing rather small, the longest primaries (tM^o outermost) 

 exceeding distal secondaries by less than half the length of wing. 

 Tail slightly more than three-sevenths as long as wing, slightly 

 double-rounded (the lateral and middle pair of rectrices about equal 

 in length) ; rectrices 14. Tarsus a little shorter than middle toe 

 without claw, the acrotarsium reticulate; outer toe (without claw) as 

 long as middle toe (without claw), the inner toe as long as first two 





