15. LAEUS. 169 



Bula ; Boothia ; Point Barrow, N. Alaska, coming from the direction 

 of Herald I. ; St. Michael's, Alaska (once) ; icy sea from Bering 

 Strait to the mouth of the Lena ; Barents Sea, between Franz-Josef 

 Land and Spitsbergen, including the latter; Faeroe Is. (once); 

 Yorkshire (once) ; Heligoland (once). Propagation as j^et unknown. 



a. Ad. St. Greenland, summer. H. Seebohm, Esq. [P.]. 



b. c? juv. sk. Point Barrow, Alaska, Sept. H, Saunders Coll. 



1882 {U.S.Nat. Mus.). 



c. (S; d, e. $ Point Barrow, Alaska, Sept. Salvin-Godman Coll. 

 juv. sk. 1882 {U.S. Nat. Mus.). 



15. LARUS. 



Type. 



Larus, Linn. Syst. Nat. i. p. 224 (1766). 



Xema, Boie, Ms, 1822, p. 563 ; id. op. cit. 1844, 



p. 192 (partim). 

 Gavia, Macgill. Man. Brit. Orn. pt. 2, p. 239 (1842). 

 Gavia, Boie, Isis, 1844, p. 191 (partim). 



Gavia, Kaup, Natiirl. Syst. p. 99 (1829) L. ridibundus. 



Leucus, Kauj), Natiirl. Syst. p. 84 (1829) L. marinus &c. 



Leucus, Bp. Cons]). Av. ii. p. 215 (1857) L. argentatus &c. 



Hydrocoloeus, Kaiq), Natiirl. Syst. p. 113 (1829) . L. minutus &c. 

 Ichthyaetus, Kaup, Natiirl. Syst. p. 102 (1829) . . L. ichthyaetus. 

 Laroides, Brehjti, Isis, 1830, p. 993 ; id. Voy. DeutscM. 



p. 738 (1831) ; Bp. Consp. Av. ii. p. 217 (1857). L. argentatus &c. 

 Chroicocepbalus, Eyton, Brit. B. p. 53 (1837) . .~] 

 Kroicocephalus, Jameson, Jonrn. Asiat. Soc. viii. 



p. 243 (1839) 



Chroicepbalus, Reichenb. Av. Syst. Nat., Lonqip. 



p.v(18.52) ,T • 11 .• 



Chroocepbalus, Scl. ^ Salvin, P. Z. S. 1871, p. 576 ^^^^ cucuilati. 



footnote 



Chroicocephalus, II. T. Wharton, Zool. 1878, p. 105 

 Cbroeocephalus, Heine Sf Reichenoto, Nomencl. 



Mus. Hein. p. 358 (1890) J 



Plautus, Reichenb. Av. Syst. Nat., Longip. p. v 



(1852) L. glaucus. 



Glaucus, Bruch, J.f. O. 1853, p. 101 L. glaucus. 



Dominicanus, Bruch, J.f. O. 1853, p. 100 : id. op. 



cit. 1855, p. 280 ' L. marinus &c. 



Gavina, Bp. Nauynannia, 1854, p. 212 L. canus &c. 



Gavina, Bp. Consp. Av. ii. p. 222 (1857) L. audouini. 



Blasipus, Bruch, J.f. O. 1853, p. 108 L. modestus. 



Leucophfeus, Bp. {nee Bruch, 1853) Naum. 1854, 



p. 211 ; id. Comp. Av. ii. p. 231 (1857) L. heermanni &c. 



Blasipus, Bp. Naum. 1854, p. 211 ; id. Comp. Av. 



ii. p. 211 (18.57) L. modestus &c. 



Blacipus, Heine 8,- Reichenoto, Notnencl. Mus. 



Hein. p. 357 (1890) L. crassirostris. 



Adelams, Bruch, J. f. O. 1853, p. 106, ex Bp. MS. 1 t , , ,, , 



Adelolarus, Heine ^- Reichenow, Nomencl. Mus.i^'Y'-^'"''^^^^'^'^ 



ITmw. p. 3.58 (1890) \ ^^• 



Gelastes, Bp. Naum. 18.54, p. 212 L. gelastes. 



AtriciUa, Bp. Natim. 1854, p. 212 L. atriciUa. 



Melaofavia, I v r> >. -,„-- ^-, ^ 



Gavia, ( subg.^^. A«««. 18o4, pp. 212- 



Cirrhocephala, I -^^ Lai-i cucuUati. 



