620 
gavi^:. 
3022. Larus delawarensis. 
Larus delawarensis , Ord. in Guthrie’s Geogr. Ed. 2, ii. 
p. 319: Coues, Birds of the N. W. p. 636: Saund. P. Z. S. 1878, 
p. 176. 
a {Arthur Strickland) 1850. 
A North- American species. 
3023. Larus cairns. 
Larus canus, Linn. Syst. Nat. i. p. 224: Saund. P. Z. S. 
1878, p. 177: Dresser, B. Eur. viii. p. 381, pi. 600. 
a, — h Britain (. H \ K Strickland) 1830. — c, ~d Aberdovey, 
August {H. K Strickland) 1833. 
3024. Larus marinus. 
Larus marinus, Linn. Syst. Nat. i. p. 225 : Saund. P. Z. S. 
1878, p. 179: Dresser, B. Eur. viii. p. 427, pi. 604. 
a Britain {N. G. Strickland) 1838. 
3025. Larus pacificus. 
Larus pacificus, Lath. Ind. Orn. Suppl. p. Ixviii. : Gould, B. 
Austr. vii. pi. 19: Saund. P. Z. S. 1878, p. 181. 
a, — b {Arthur Strickland) 1850. 
An Australian species. 
3026. Larus modestus. 
Larus modestus , Tsch. Arch. f. Naturg. 1843, i. p. 389; Faun. 
Per. Av. p. 306, pi. 35: Saund. P. Z. S. 1878, p. 183. 
a Chili {Gap t. Brown) 1842. 
3027. Larus novse-hollandisB. 
Larus novoe-hollandice , Steph. in Shaw’s Gen. Zool. xiii. pt. 1, 
p. 196: Saund. P. Z. S. 1878, p. 185. 
Xema jamesoni, Gould, B. Austr. vii. pi. 20 {ex Wils.). 
a New Holland {Arthur Strickland) 1850. 
3028. Larus atricilla. 
Larus atricilla, Linn. Syst. Nat. i. p. 225: Saund. P. Z. S. 
1878, p. 194. 
a {Arthur Strickland) 1840. — b Jamaica (/. Gould) 184.6. 
— c, — - d, — e {Arthur Strickland) 1850. — f. 
