i6 BIRDS OF THE HAWAIIAN GROUP. 



Order ANSBRBS.— Lamellirostral Swimmers. 



Family. 

 Only one family. Charadlers same as for the order. . . -(Page i6.) Anatidae. 



Family ANATID^.— Ducks, Geese, Etc. 

 Genera. 

 a. Tarsus shorter than middle toe with claw. 



b. No trace of teeth (lamellae) along the side of lower mandible ; distinct 

 tooth serrations along the upper edge (Sub-family Mergincs); culmen shorter than 



tarsus ; bill narrow and peculiar (Page 17.) Mergan'ser. 



bb. A very distinct row of teeth along the side of the lower mandible, in 

 addition to the series along the upper edge. ( Sub-family Anatince. ) 



C. Hind toe narroivly lobed; neck shorter than the body; a colored 

 speculum on the wing. 



d. Bill not spatulate ( upper wing coverts not blue, more usually 

 dark grey;) tail feathers rather narrow and pointed at the tips. 



e. Tail moderate with the centre pair of feathers not very 

 long and tail graduated for less than one-third its total length ; bill rather broad and 



about the length of the' head (Page 17.) AnaS. 



ee. Tail long^ with the central pair of feathers very long and 

 pointed; culmen longer than the middle toe (speculum broader than the light band at 



the tip of the secondaries) (Page 18.) Da'fila. 



dd. Bill spatulate, i. r., broad at the end and narrower at the base; 

 upper wing coverts blue ( no soft membrane on the sides of the bill towards the tip) . 



(Page 18.) Spat'ula. 



CC. Hind toe with a broad membranous lobe (Sub-familv Fuligulin(e)\ 



feathers on the lores not reaching beyond posterior border of nostrils ; graduation of 



the tail much more than the length of the bill from the nostrils ; distance from anterior 



end of nostrils to tip of bill much greater than the same place to loral feathers. 



(Page 18.) Charitonet'ta. 



aa. Tarsus equal to or longer than the middle toe without the claw ; neck mod- 

 erately long, no cere on the bill. (Sub-family Anserince.) 



f. Serrations on the cutting edge of upper mandible visible 

 from the outside for the greater portion of the length of the tomium; bill very stout, 

 its depth through the base more than equal to the length of the culmen ; color of adult 



either white or bluish with black primaries (Page 19.) Chen. 



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