80 CRUISE OF THE STEAMER CORWIN. 



737. Colymbus Adamsi (;/■«?/. Okeat White-billed Loon. 



Several .speeiiueius of this beautiful diver were imlcd on the hnvei- i-iver, wheiv they are 

 reguhxr suuuner resi(h^uts; not alniiKhiut. 



738. Colymbus arcticus Linn. lii,.\iK-TiiROATEr) DiVER. 



A moderately abundant species, confined totlie nuirshe.s and lakes lyinj;ci(T llie main i-iver 



SAMUEL B. McLENEGAN. U. S. R. M.. 



Second Afisistant EiKjiiu-cr, U. S. <S'. CoririK. 



