i

i invertebrate life including numerous
There is an abundant inver ARS et Beet ee one

the snails Lymnaea stagnalia jug
eee (Carpenter), and the amphipods Gammarus Limnacus and
Hyalella azteca. Caddis larvae Polycentropus sp. are unusually
plentiful and the following beetles were collected: a we
minutus LeC , Gyrinus pectoralis LeC., Hygrotus punctatus vay,

Thermonectus sp., larvae

1 bundant and many used
Red-legged frogs were conspicuously abur
lily pads as resting places (Fig. 11). The lake contains Kamloops
trout and some specimens weighing five pounds and over have been

taken.

Milburn Lake apparently has all the elements necessary for
a large waterfowl population but as observed on June TL Claes was
limited to the following, viz-: loon, 1; Holboell grebe, 1; ring-
necked duck, 6; buffle-head, 1 pair. Several pairs of red-winged
blackbirds were nesting in the rushes.

Dragon Lake: 3 1/4 miles long, 1 mile wide, situated in a valley
lying north and south on the east side of the Fraser River about
three miles southeast of, and at an altitude 500 feet above, Quesnel.
The surroundings are deciduous forest mixed with Engelmann spruce,
meadow land and cultivated fields The shores are part sand and
gravel, part marl. Round-stem bulrush, Scirpus acutus, is estab-
lished along most of the shoreline in a narrow belt of open growth
or in marshes 50 yards or more in width. Here and there also are
small cattail marshes. Several peninsulas covered with low willow
and aspen terminate in marshes, and in one of these a bed of tall
reed grass Phragmites communis is an unusual feature. Three hun-
dred yards or so from the tip of one peninsula is an island of
several acres grown up with sedges including Carex aquatilis, low
willows and silverberry Eleagnus argentea. The water is clear and
of considerable depth except close in shore. In the shallows are
meadows of Chara and Nitella; whether or not these extended into
deeper water was not determined. Submerged vegetation includes
bladderwort, water smartweed, water buttercup Ranunculus §p., sage
pondweed and the pondweeds Potamogeton richardsonii, P. natans, BP.
filiformis, and P. gramineus. Outside of the marsh areas on the
east shore for half a mile or more is a belt of yellow pond lily.

Insects and other invertebrates appear to be present in only
small numbers, dredging with a wire net amongst the vegetation pro-
duced only a few mayfly and damselfly nymphs, water mites, blood-
worms and the amphipod Hyalella azteca. At one time snails and
small clams had been abundant, and in clear shallows can be seen
deep deposits of their whitened Shells, apparently quite old and,
although mainly pulverized, some still are intact. SoLrering soi
the soft marl bottom caused dozens of the small Shells to rise to

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