1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 647 

 Genus DAFILA SxEriiENS. 



28. Dafila acuta (Linn.). Sprigtail. 



Common iu winter with otlier species of the fiimily at CoriRis Christi. 

 Dresser records it as " common daring the winter." 



Genus AIX Boie. 



29. Aix sponsa (Linn.). Wood Duck. 



Two bcantifally mounted specimens of this duck were seen in DeRyee's 

 drug store at Corpus Christi, which had been shot in the vicinity and 

 mounted by Mr. F. 13. Armstrong, a collector staying there. Dresser 

 found it " not uncommon near San Antonio during the summer." 



Genus AYTHYA Boie. 



30. Aythya ameiicana (Eyt.). Redhead. 



Hancock found the Eedhead at Corpus Christi as late as April 1, and 

 Sennett noted several of them at the* head of Lagoona Madre, near 

 Corpus Christi Bay, during the last of March. " Not uncommon during 

 the winter" (Dresser). 



31. Aythya vallisneiia (Wils.). Canvas-back. 



This duck is often shot by the sportsmen at Corpus Cliristi— who do 

 not have to consult the carte du jour of a Washington or New York 

 restaurant to learn that the principal difterence between a Canvas- 

 back and a Redhead consists in the Ml. It is not mentioned, however, 

 ill either Sennett's or Hancock's papers. "I shot two on the Nueces 

 River in December and saw several on Turkey Creek" (Dresser). 



32. Aythya affinis (Eyt.). Lesser Blackhead. 



A very abundant duck at Corpus Christi. Both Hancock and Sen- 

 nett saw great numbers there up to the 1st of April. " Cori)us Christ- 

 Bay was tilled with them" (Sennett). 



33. Aythya collaris (DoNOV.). Ring-necked Duck. 



Brown saw three of these ducks at Boerne, February 27. It is not iu 

 Hancock's list or either of Sennett's two papers. 



Genus GLAUCIONETTA Stejnegek. 



34. Grlaucionetta clangula americana (BoNAr.). American Goklen-eyc. 



I did not see this Duck, but was informed by a local sportsman at 

 Corpus Christi, who seemed perfectly familiar with all of the game 

 birds, that it occurred regularly there in winter. 



Genus CHEN BoiE. 



35. Chen hyperborea nivalis (Forst.). Greater Snow Goose. 



Dresser saw several large flocks of geese near San Antonio which he 

 referred to this form. Sennett and Hancock both found it common 

 about Corpus Christi during the latter part of March. 



