APPENDIX. 



895 



COTJES KEY, 1884. TJNION LIST, 1886. 



871 Us. Add: Uria grylle mandti. Mandt's Guillemot. Similar to the last, and 

 probably only the perfected plumage of it, having the white on both sides of the wing pure 

 and unbroken; the bill said to be smaller. A circumpolar range is ascribed to this form, 

 which is said to come south in winter as far as New Jersey and Norton Sound, Alaska. 



872. Uria columba. 



873. carbo. 



29. Cepphus columba, 

 f3. carbo. 



■|-2. motzfeldi. 



873 ife. Add: Uria carbo motzfeldi. Motzpeld's Guillemot. Like the last, but 

 lacking the whitish patch on the side of the head. North Atlantic ; Greenland. 



874. Lomvia troile. 



875. troile californica. 



876. arra. 



876 bis. [See Key, p. 818.] 



877 Utamania torda. 

 878. Alca impennis. 



30. Uria troile. 



30a. troile californica. 



31a. lomvia arra. 



31. lomvia. 



32. Alca torda. 



33. Plautus impennis. 



TJniveesity Press: John Wilson & Son, Cambeidge. 



