PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM 207 



6C3. LARUS MARINUS LiXN. 



Great Black-backed Gull. [GGO. ] 



GG4. LARUS OCCIDENTALIS AUD. 



Western Gull. [GG2,) 



[GGf).] LARUS AFFINIS Reinii. 

 Siberian Gull. 



G66. LARUS ARGENTATUS Brunn. 

 Herring Gull. 



GGGa. LARUS ARGENTATUS SMITHSONIANUS COUES. 

 American Herring Gull. [661.] 



6fl7. LARUS CACHINNANS Pall. 



Pallas' s Herring Gull. 



668. LARUS CALIFORNICUS Lawr. 



Califomian Gull. [663.] 



669. LARUS DELAWARENSIS Ord. 



Ring-billed Gull. [664.] 



670. LARUS BRACHYRHYNCHUS Rich. 



Short-billed GuU. [664 a, 665, 673.] 



[671.] LARUS C ANUS Linn. 

 Mew Gull. 



672. LARUS HEERMANNI Cass. 



Heemiann's Gull. [666.] 



073. LARUS ATRICILLA Linn. 



Laughing Gull. [667.] 



674. LARUS FRANKLINI Sw. & Rich. 



Franklin's Gull. [668,669.] 



675. LARUS PHILADELPHIA (Ord) Gray. 



Bonaparte's Gull. [070.] 



676. RHODOSTETHIA ROSEA (Macgill.) Bruch. 



Ross's Gull. [678.] 



677. XEMA SABINEI (J. Sabine) Leach. 



Sabine's Gull. [G80.] 



678. CRBAGRU3 FURCATUS (Neb.) Bp. 



Swallow-tailed GuU. [679.] 



679. STERNA ANGLICA Montag. 



GuU-biUed Tern. [G81.] 



680. STERNA CASPIA Vai.l. 



Caspian Tern. [682.] 



681. STERNA REGIA Gamb. 



Royal Teru. [683.] 



