LARIDAE. 
149 
Laras Philadelphia (Orel)*. (25-185.) 
Sterna Philadelphia Ord, in Outline’s Geograpli. 2nd Anier. ed. 
p. 319, 1815: near Philadelphia, America. 
Larus mdanarhynchns Temwinok ot Laugier, Planck. Color. d'Ois. livr. lxxxv. 
pi. 594, 1830: Cliili. 
Larus bonapartii Swainaon *fc Richardson, Fauna Bor.-Amer., Birds, p. 425, 
pi. 72, 183*2 : Fur Countries. 
Ghroicocephalns snbidirosti* Bruch, J. f. O. 1853, p. 105 : North America. 
Distr. —Norih America to Hawaiian Islands (casual). Extra- 
limital, 
Larus californicxis Lawrence. (25-270.) 
Lams cal farnicas Lawrence, Ann. Lyc. Nat. Hist. New York, 
voL vi. p. 79, 1854 : near Stockton, California. 
Distr . —Western North America to Hawaiian Islands (casual). 
Laras delawarensis Ord. (25-273.) 
Lams delawarensis Ord, in Guthrie’s Geography, 2nd Amer. ed. 
p. 319, 1815: Delaware River below Philadelphia. 
Distr .—North America, casual in Hawaiian Islands. 
Laras pipixean Wagler. (25-191.) 
Larus pipixean, Wagler, Isis, 1831, heft. v. (for May) :• Saskatchewan 
River. 
Lams franlclinii Richardson, Faun. Bor.-Amer. p. 424, pi. 71, 1831 (1832): 
Saskatchewan River. 
Distr .—North and South America, casual on Maui, Hawaiian 
Islands. 
Genus GABIANUS Bruch. 
Gabianus Bruch, Journ. fur Ornith. for March 1853, heft 2, p. 100 
(ex Bonaparte MS.). Type (by monotypy) : Larus pad ficus 
Latham. 
Gabianus pacificus (Latham). 
Distr .—Australia generally (not in extreme north) and 
Tasmania. 
Grabianus pacificus pacificus (Latham). (25 -297.) 
Larus pacificus Latham, Index Ornith. Suppl. ]>. lxviii, after May, 
1801: New South Wales. (Fig. Gould, Austr. vii. pi, 19.) 
Uirtis frontalis Vieillot, Nouv. Diet. d'Hist. Nat vol. xxi. p. 505, May 30th, 
1818 : Tasmania. Not Reich, Mag. Thierreicha, (3) p. 129, 1795- 
Jjiii'tm leucomehts Vieillot, ib. p. 509 ; 1 asimuiia. 
Larus baUiyrinchus Maegillivray, Mem. Worn. Soc. vol. v. p.253, 1824, after 
March 21 sts New South Wales. 
Gabianus pacificus kiityi Mathews, Austral Av. Rec. vol. iii. p. 56, April 7th, 
1916 : Queensland. 
Distr. —Queensland to Tasmania and South Australia. 
* In the genus Hydrocolosus Kaup, Skizz. Kntw.-Geseh. Nat. Syst. p. 113. Typo 
(by subsequent designation, Gray, 1842, App. p. 15): Larus minutns Linne. 
