captured S1UClelese floating vegetation. Invertebrates collected were
clam Sphaerium sulcatum (Lamarck), a mussel Anodonta kennerlyi Lea,
e snails, Lymnaea stagnalis jugularis Say, Stagnicola near preblei

(Dall}, Helisoma anceps Menke, elisoma subcrenatum (Carpenter),
and water bugs Sigara soiensis Hung. All these were plentiful.

Amphipods Hyalella azteca, damselflies and dragonflies were found
in silaii numbers

There were no ducks on the lake. The nesting population of
waterfowl, as observed, consisted of one pair of loons and an adult
Holboell grebe with two half-grown young. One herring gull, one
short-billed gull and four Bonaparte gulls were also seen. Ff

Lacroix Lake: Situated five and one-half miles southeast of the
confluence of the Bulkley and Telkwa Rivers, is tributary to the
former. It is nearly circular in shape and about a mile across in
any direction. The immediate surroundings are semi-open coniferous
and aspen woods and agricultural clearings. The shores are mostly
hard sand and gravel, the shore growth, chiefly alder and willow

A marsh belt of round-stem bulrush Scirpus vallidus, horsetail and
spike rush is established around the entire shore in a belt of vary-
ing widths, and cattails grow under the shade of shore willows along
the outlet creek and in small isolated clumps elsewhere. The duck-
weeds Lemna trisulca and L. minor are abundant in the marshes. A
narrow strip of open water shaded by willows between the shore and
the inner edge of the marsh contains a rich aquatic flora. In places
sago pondweed is dominant, in others Potamogeton gramineus, or water
smartweed, or arrowhead, or bur-reed is the chief or the sole growth.
Other areas, larger than those dominated by a single species, con-
tain a mixture of vegetation that includes hornwort, water buttercup
and the pondweeds Potamogeton natans, P. robbinsii, P. Friesii and

P. richardsonii. Yellow pond lily covers the lake surface in several
places, and in deep water are forests of Potamogeton amplifolius.

Kamloops trout and suckers are reported to inhabit the lake;
lake shiners were seen in shoals. Invertebrates collected were
molluscs Stagnicola palustris nuttalliana (Lea), Menetus exacuous
megas (Dall), Musculium ryckholti (Normand) and Musculium securis
(Prime), the amphipods Gam arus limnaeus, Hyalella azteca, and
odonata nymphs.

The waterfowl population is less than might be expected and
certainly not commensurate with the supply of cover and HOO «dN
census taken July 14 follows: loon, 1 pair; Holboell grebe, 13
adults, 6 young; mallard, 3 females with broods numbering 6, 7, 8;
baldpate, 3 females with broods numbering 4, 8, 9; surhaccoter, 93
Barrow goldeneye, 1; long-billed dowitcher, 1; herring CRUIBIE Toms as

Bonaparte gull, 4

eae