Class II. BLACK THROATED DIVER. 527 



feet five inches. The head fmall and taper : the 

 bill (trait, and lefs ftrong : the fize about a fourth 

 lefs than the preceding. The head and chin are 

 of a fine uniform grey : the hind part of the neck 

 marked with dufky and white lines, pointing down- 

 wards : the throat is of a dull red : the whole up- 

 per part of the body, tail and wings of a deep grey 

 almoft dufky •, but the coverts of the wings, and 

 the back, are marked with a few white fpots : 

 the under fide of the body white : the legs dufky. 



Lumme. Worm. Muf. Brun- Colymbus arclicus. Lin. Jyft. 241. Black 



tticb, No, 133. 221. Faun. Suec. No. throated. 



Northern Doucker. Wil. orn. Speckled Diver. Ediv, 146. 

 343. Raii fyn. av. 12$. 



A SPECIES fomewhat larger than the laft. 

 Bill black : front black : hind part of the 

 head and neck cinereous : fides of the neck mark- 

 ed with black and white lines pointing downwards : 

 fore part of a glofiy variable black, purple and' 

 green. 



Back, fcapulars, and coverts of wings black, 

 marked (the two firfl with fquare) the laft with 

 round fpots of white : quil feathers dufky : breaft 

 and belly white. Tail fhort and black : legs partly 

 dufky, partly reddifh. 



BILL 



