562 Mr. N. A. Vicors on the Anas glocitans of Pallas. 
with a free hallua, legs placed within the equilibrium of the 
body, and inferior powers of swimming and none of diving, 
affect the neighbourhood of fresh waters, feed occasionally on 
land, and as such form part of the aberrant subdivisions of the 
Natatorial Order. It is evidently remote from A. boschas, of 
which the middle tail-feathers also appear the longest, but which 
are invariably curved upwards. While it may also be perceived 
to hold a different station from A. acuta, which, although closely 
allied to the same group, yet from its long neck and legs is 
found to stand at that remote end of it where it is connected 
with the Anserés, the next conterminous division of the family. 
Its nearest affinity among the European species is to the À. cir- 
cia, Gmel., and A. crecca, Linn.* 
The appearance of this species in the British Islands seems of 
rare occurrence; two instances only of the kind having been 
recorded. These most probably are to be attributed to some 
extraordinary accident or stress of weather. 
* The Guerruetuta circia and Q. crecca of xis Ornithologists. 
XXVII. 4 De- 
