SYSTEMATIC INDEX. 



XXUl 



navirostris, Vieill. 202 



albicollis, Swains 202 



Sub-Family Larinae. 



Xema, Leach 203 



sabinei {J. Sabine) 203 



Creagrus, Bp 203 



furcatus [Niboux) 203 



Larus, Linn 204 



minutus, Pall. 204 



ichthyaetus, Pall. 204 



melanocephalus, Natt. . . 206 



Philadelphia (Ord) 205 



franklini, Swains. Sf Rich. 206 



atricUla, Linn 206 



cirrhocephalus ( Vieill.) . . 207 



maculipennis, Licht 207 



glaucodes, Meyen 208 



ridibiindua, Linn 208 



hemprichi {Bruch) .... 209 

 crassirostris, Vieill. .... 209 



gelastes, Thienem 210 



novae-hoUandiee, Steph. . . 210 



scopulinus, Gray 211 



hartlaubi (Bruch) 211 



marinus, Linn 211 



dominicanus, Licht. . 212, 234 



fuigcus, Linn 213 



affinis, Reinh 214 



occidentalis, Audub 216 



Page' 



argentatus, Gm 215 



cachinnans, Pall. 216 



audouini, Payr 216 



delawarensis, Ord .... 217 



califomicus, Lawr 217 



oanus, Linn 218 



brachyrhynchus, Bichard- 



son 219 



glaucescens, Naum 219 



glaucus, Fabr 220 



leucopterus, Faber 221 



Gabianus, Bruch 221 



pacificus (Lath.) . 221 



LeucophsBus, Bruch 222 



scoresbyi (Traill) 222 



Pagophila, Eaup 222 



eburnea (Phipps) 222 



Rissa, Steph 223 



rissa (Linn.) 223 



brevirostria (Bruch) .... 224 



Family STEKCOKAH,iiD.a!. 



Megalestris, Bp 224 



catarrhactes (Linn.) .... 224 



chilensis, Bp 225 



antaretica (Less.) 226 



maccormicki (Saunders) . 226 



Stercoraiitis, Briss. 227 



crepidatus (Banks) .... 227 



parasiticus (Linn.) 228 



