384 CHECK-LIST OF NORTH AMERICAN BIRDS. 
OrpER PALUDICOL. 
SUBORDER GRUES. 
Famity GRUIDE. 
GENUS GRUS PA.uas. 
Grus haydeni Marsu. [41.] 
Grus haydeni MarsH, Amer. Journ. Sci., ser. 2, XLIX, 1870, 214. 
Pleistocene?; Nebraska. 
Grus prodvus MarsH. [42.] 
Grus proavus MarsH, Amer. Journ. Sci., ser. 3, IV, 1872, 261. 
Pleistocene; New Jersey. 
Genus ALETORNIS Marsgz. 
Aletornis Marsu, Amer. Journ. Sci., ser. 3, IV, 1872, 256. Type, by 
subs. desig., Aletornis nobilis MarsH (Hay, 1902). 
Aletérnis béllus Marsu. [48.] 
Aletornis bellus Marsu, Amer. Journ. Sci., ser. 3, IV, 1872, 258. 
Eocene (Bridger); Wyoming. 
Aletornis gracilis Marsn. [47.] 
Aletornis gracilis MarsH, Amer. Journ. Sci., ser. 3, [V, 1872, 258. 
Eocene (Bridger); Wyoming. 
Aletornis nobilis MarsH. [44.] 
Aletornis nobilis MarsH, Amer. Journ. Sci., ser. 3, IV, 1872, 256. 
Eocene (Bridger); Wyoming. 
