THE CAROTID ARTERIES OF BIRDS. 173 
Chloéphaga, sp. Aiz galericulata. 
Cygnus nigricollis. Mareca penelope. 
—— buccinator. Dafila spinicauda. 
coscoroba. Querquedula erecca. 
Dendrocygna autumnalis. Metopiana peposaca. 
—— viduata. Fuligula cristata. 
—— fulva. Mergus castor. 
Tadorna rutila. —— albellus. 
COLUMBZ. Page 468. 
Both carotids are present in all these birds. 
Species examined. 
CARPOPHAGIDE. Geopelia humeralis. 
_  Carpophaga globicera. Turtur senegalensis. 
—— enen. —— aldabranus. 
Lopholemus antarcticus. Metriopelia melanoptera. 
Ptilopus melanocephalus. Chamepelia talpacoti. 
—- marie. Leptoptila jamaicensis. 
Treron calva. Chalcopelia ehalcospilos. 
y —— puella. 
7 CoLumBIp2.  Tympanistria bicolor. 
Columba enas. Ocyphaps lophotes. 
livia. Chalcophaps chrysochlora. 
—— leucocephala. Phaps chalcoptera. 
— picazuro. Phlogenas cruentata. 
—— maculosa. Calenas nicobarica. 
—— vinacea. Didunculus strigirostris. 
Geopelia striata. Goura coronata. 
—- placida. victorie. 
’ —— cuneaia, 
GALLIN A. 
Both carotids are present in all this Order, except in the Turnicide 
and Megapodide, in which the left only is developed. 
Species examined. 
With both carotids. 
PTEROCLIDZ. Tetrao urogallus. 
: Pterocles alchata. 
arenarius. PHASIANIDZ, 
Francolinus vulgaris. 
TETRAONIDZ. afer. 
Tetrao tetraz. —-— ponticerianus. 
