274 ANATIDA5.
edges ; sides, flanks, and thighs, grey, broadly tipped with
pale brown; vent, under tail-coverts, and under surface of
the tail-feathers white; legs, toes, and membranes pink,
tinged with vermilion ; the claws black ; the hind toe short;
the membranes of the feet thick and fleshy.
The whole length of the adult is about twenty-eight inches.
From the carpal joint to the end of the second quill-feather,
which is rather the longest in the wing, seventeen inches and
a half; the carpal joint of the wing furnished with the usual
hard knob ; the wings when closed reach an inch or more
beyond the end of the tail.
T he Bar-headed Goose (Anser indicus) is a recently-
introduced species, a native of Central Asia and Northern
India, which has occasionally escaped from confinement.
An example, shot on the banks of the Dee, below Chester,
wras recorded by Mr. Mather (Zool. p. 5988).
SNOW GOOSE 275
A N SERES. AN ATI DJI
C h en hyperboreus (Pallas'1').
THE SNOW GOOSE.
Chen B o k \.—?A\\ shorter than the head, very robust, and higher than broad
at the base; the culmen slightly convex, the outline of the lower mandible
decidedly so, leaving an elliptical space displaying tbe lamellae. _ Nostrils sub-
basal. Feathers on the neck less conspicuously furrowed than m true> Anser.
Wings long, full, the second quill-feather tbe longest. Tai rather short and
rounded. Tibia feathered to the joint ; tarsus moderately long, reticulate ,
three anterior toes connected by a membrane ; hind toe short and elevatec.
* Spicilegia Zoologica, i. pt. 6, p. 25 (1767). _ j, , .
+ Isis, 1822, p. 563. For an Anserine genus, Clien is tolerably defined, and m
all tbe species which compose it, white is the predominating colour.