, 
206 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
645. PHALACROCORAX PENICILLATUS (BranpT) HEERM. 
Brandt’s Cormorant. [626.] 
646. PHALACROCORAX VIOLACEUS (GMEL.) RIDGw. 
Violet-green Cormorant. [627.] 
646a. PHALACROCORAX VIOLACEUS RESPLENDENS (Aup.) Ripew. 
Baird's Cormorant. 
647. PHALACROCORAX BICRISTATUS PALL. 
Red-faced Cormorant. 
648. PHALACROCORAX PERSPICILLATUS PALL. 
Pallas’s Cormorant. [621.] 
649. PLOTUS ANHINGA LINN. 
American Anhinga; Snake Bird. [628.] 
650. SULA BASSANA (Lryy.) Briss. 
Gannet. [617.] 
651. SULA CYANOPS SUNDEV. 
Blue-faced Gannet. 
652. SULA LEUCOGASTRA (BonppD.) SALV. 
Booby Gannet. [618.] 
653. SULA PISCATOR (Linn.) Bp. 
Red-footed Booby. 
654. PHAETHON FLAVIROSTRIS Branvt. 
Yellow-billed Tropic Bird. [629.] 
655. PHAETHON 4THEREUS Linn. 
Red-billed Tropic Bird. 
656.- RHYNCHOPS NIGRA LIyy. 
Black Skimmer. [697.] 
657. PAGOPHILA EBURNEA (Puipps) KAUvP. 
Ivory Gull. [676, 677.] 
658. RISSA TRIDACTYLA (LINN.) Bp. 
Kittiwake Gull. [672.] 
658a. RISSA TRIDACTYLA KOTZBUEI (Bp.) CovuzEs. 
Pacific Kittiwake. 
659. RISSA BREVIROSTRIS Branpt. 
Red-legged Kittiwake. [674, 675.] 
660. LARUS GLAUCUS Britny. 
Glaucous Gull; Burgomaster. [656.] 
661. LARUS LEUCOPTERUS Faber. 
White-winged Gull. [658.] 
662. LARUS GLAUCESCENS Licnar. 
Glaucous-winged Gull. [657, 659.] 
