sTTO 



BLACK THROATED DIVER. Class II. 



three feet five inches. The head is small and 

 taper; the bill strait, less strong; and in size 

 about a fourth less than the preceding. The 

 head and chin are of a fine uniform grey ; the 

 hind part of the neck marked with dusky and 

 white lineS;, pointing downwards ; the throat is 

 of a dull red ; the whole upper part of the body, 

 tail and wings of a deep grey almost dusky; 

 but the coverts of the wings, and the back, are 

 marked with a few white spots ; the under side 

 of the body white; the legs dusky. 



5. Black Colymbus arcticus. C. capite 



THROATED. cano, coUo subtus atro-viola- 



ceo, fascia alba interrnpta. 



Lath. Ind. orn. 800. id. 



Syn. vi. 343. 



Lumme. JVorm. Miis. Brun- 



nich. No. 133. 

 Northern Doucker. TViL orn. 

 343. 



Ttaii Syn. av. 125. 



La Lumme. Brisson av. vi. 



115. Ilist. d'ois. viii. 261. 

 Colymbus arcticus. Gm. Link 



587. 

 Faun. Suec. No. 1;')0. 

 Speckled Diver. Edw. 146. 

 Arct. Zool. ii. 234. 



Descrip- 

 tion. 



A. SPECIES somewhat larger than the last. 

 The bill is black; the front black; the hind 

 part of the head and neck- cinereous ; the sides 

 of the neck marked with black and white lines 

 pointing downwards; the fore part is of a 

 glossy variable black, purple, and green. The 

 back, scapulars, and coverts of wings are blacky 



