906 



SECOND APPENDIX. 



Verz. Samml. Europ. Vogel, 1866, p. 14. 

 (See Ridgway, Man. N. A. Birds, 1887, p. 

 109.) 



■No. 747 quater, p. 890. Add : Sula gossi. 

 Blue-footed Boobt. Head, neck, and 

 lower parts white, the head and neck streaked 

 with dark gray ; back and scapulars dusky 

 brown, the feathers tipped with whitish; 

 feet bright blue ; bill and bare parts about it 

 dull bluish; iris yellow. Sexes similar. 

 Length 32.00-34.50; extent 62.00-66.00; 

 wing 15.50-16.75; tail 8.7.5-9.75; bill 4.20- 

 4.70. Gulf of California and south to the 

 Galapagos (Ridgway MSS.), Gross, Auk, 

 July, 1888, p. 241. 



No. 747 quinquies, p. 890. Add: Sula 

 brewsteri. Brewster's Booby. Similar 

 to S, sula; mantle ending uniform in color 

 with the head and neck, the last two paler, 

 especially in the male ; iris dark brown with 

 a narrow ring of grayish-white; claws glau- 

 cous-blue. 9 adult : bill bluish-horn fading 

 to dirty buff after death; lores slate-blue 

 space around eye, and gular sac, pale yellow- 

 ish-green; legs and feet more yellowish 

 head, neck, breast, and upper parts sepia- 

 brown, deepening on quills and tail-feathers 

 under parts from the breast pure white 

 (J adult : bill olive-blue ; lores and circnm- 

 ocular space indigo-blue ; gular sac bluish 

 legs, feet, and webs pea-green. Plumage as 

 in the female. Length 29.50-31.50 ; extent 

 55.50-59.50; wing 14.50-15.50; tail 8.00; 

 tarsus 2.00; bill 4.00. Southern Pacific 

 Islands, north to lower California. Goss, 

 Auk, July, 1888, p. 242. 



No. 768 a, p. 741. Larus barrovianus is a 

 Glaucous Gull described from Behring's Sea 

 and adjacent waters from Point Barrow to 

 Japan, by Mr. Ridgway, Auk, July, 1886, p. 

 330. It was admitted neither to the Union 

 List of 1886, nor to the Key of 1887 ; and I 

 am at a loss to see upon what grounds it is 

 rated as a good species in the Supplementary 

 List of 1889, as L. glaucus is well known to 

 vary beyond the limits of size said to be 

 distinctive of L. barrovianus. 



No. 775, p. 744. Larus cachinnans becomes 

 L. vegae, Stejneger, Auk, July, 1888, p. 310, 

 after L. argentatus var. vegcB of Palm^n, 



Bidr. Sibirisk. Vega Exp., 1887, p. 370, 

 one of several conspecies of the Herring 

 Gull. 



No. 788 bis, p. 751. Add: Chroicoce- 

 phalus minutns. Least Gull. This 

 almost cosmopolitan Gull and the smallest 

 of its tribe, originally described as Asiatic 

 in 1771 by Peter S. PaUas, and well known 

 to be also European and African, was as- 

 cribed to North America in 1831 by Swain- 

 son and Richardson (F. B.-A., II., p. 426), 

 on the strength of a specimen said to have 

 been procured on Sir John Franklin's first 

 expedition and identified by Sabine. In 

 1862, I included it in my monograph of the 

 Larinm (Proc. Phila. Acad., p. 311), but 

 with doubt, and its alleged occurrence has 

 never been accredited. It has therefore 

 been omitted from all our late works. But 

 quite recently it has been found on Long 

 Island: see Dutcher, Auk, April, 1888, p. 

 171. The size is very small; length about 

 11 inches; wing 9 or less; bill 0.90, very 

 slender ; tarsus 1.00, and rather shorter 

 than the middle toe and claw. The mantle 

 is pale pearly-blue; the primaries are sim- 

 ilar, white-tipped, and not crossed with 

 black ; and the adult in summer has a 

 black hood. 



No. 809 bis, p. 892. Diomedea exulans. 

 This species, which I took in the Key, orig. 

 ed. 1872, removed from the Key in 2d ed. 



1884, and replaced on new evidence in the 

 3d ed. 1887, is placed by the Committee in 

 the hypothetical List. See Coues, Auk, Oct. 



1885, p. 387; Ridgway, Man. N. A. Birds, 

 1887, p. 51. 



No. 823 bis, p. 781. Add: Cymochorea 

 macrodactyla. Guadalupe Petrel. An 

 interesting petrel, apparently new and a 

 valid species, described as Oceanodroma 

 leucorrhoa macrodactyla by Bryant, Bull. 

 Cala. Acad. Sci., H., No. 8, 1887. It 

 appears to belong to our genus, as above, 

 but we have not seen any specimens. 

 The locality is Guadalupe Island, Lower 

 California. 



No. 887, p. 780. (Estrelata gularis becomes 

 (E. scalarls, Brewster, Auk, July, 1886, p. 

 300. (I cannot bring myself to misspell this 



