170 
5. BLack 
THROATED. 
DeEscrip- 
TION. 
BLACK THROATED DIVER. Cuass IL, 
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. 
Colymbus arcticus. C. capite 
cano, collo subtus atro-viola- 
ceo, fascia alba interrupta. 
Lath. Ind. 800. zd. 
Syn. vi. 343. 
Lumme. Worm. Mus. Brun- 
nich, No. 133. 
Northern Doucker. 
orn. 
Pil. orn. 
Rai Syn. av. 125. 
La Lumme. Brisson av. vi. 
115. Hist. dois. viii. 261, 
Colymbus arcticus. Gm. Lin. 
587. f 
Faun. Suec. No. 150. ~~ 
Speckled Diver. Edw. 146. 
Arct. Zool. ii. 234. 
343. 
‘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 black, 
Pipes 
