890 



APPENDIX. 



154. 

 156. 

 155. 

 157. 

 158. 

 159. 

 160. 

 161. 

 162. 

 163. 

 [164.] 



737 hla. Add: CEdemia fusca. European Scoter. The true scoter of Europe and 

 Asia (of which our velvet scoter may be a recognizable variety, as long ago pointed out by 

 Cassin and Bonaparte) has occurred in Greenland and Alaska as a straggler from the Old 

 World, and may therefore take place in our list. It is distinguished from the American 

 O. f. velvetina by a somewhat different outline of the feathers upon the base of the upper 

 mandible, leaving the length of the culmen greater than the lateral length of the bill from 

 the loral feathers along the side to the tip ; and by a black stripe in the red of the bill. 



UNION LIST, 18S6. 



152. Glauciouetta islandica. 



153. Charitouetta albeola. 

 Clangula hyemalis. 

 Camptolaimus labradorius. 

 Histrionicus histrionicus. 

 Eniconetta stelleri. 

 Arctonetta fischeri. 

 Somateria mollissima. 



dresseri. 

 v-nigra. 

 spectabilis. 

 Oidemia americaua. 

 fusca. 



747 his. Add: Sula cyanops. Blue-faced Booby. Adult $ ^ : White; greater 

 ■wing-coverts, bastard quills, primaries and their coverts, dusky brown; tail-feathers the 

 same, the middle pair mostly whitish and the others whitish at the bases; face and gular sac 

 blue, drying blackish; feet light red. Young: Head, neck, and upper parts dark grayish- 

 brown; lower parts from the neck white; middle of back and upper part of rump streaked 

 with white, flanks with gray. Wing 14.50; tail 7.75; bill along culmen 3.50, its depth at 

 base 1.25; tarsus 1.75; middle toe 2.25. A species of wide distribution in warm seas, in- 

 habiting the West Indies and occasionally occurring in southern Florida. It should have 

 been admitted to the second edition of the Key. 



747 ter. Add: Sula piscator. 



I 116. Sula piscator. 

 Red-footed Booby. Adult $ 9 



White; head and 



neck tinged with buff ; wing-feathers, primary coverts, and greater secondary coverts slate-gray ; 

 shafts of tail-feathers pale yellow. Feet coral-red ; iris brown; gular sac black; bare space 



I As pointed out by Mr. Cassin in 1853, the American sheldrake may be recognized, in comparison with the 

 European, by the black bar which partly divides the white area on the wing, and some average diflference in the 

 bill, whicli is shorter than that of the true M merganser. (Pr. Phila. Acad. 1853. p. 187.) 



