THE ENTOMOSTRACA OF EPPING FOREST. 271
Hollow Pond, Leyton Flats. There is nothing
very remarkable about the records from this pond, the
rarest species found in it having been Ilyocryptus sordidus,
Pleuroxus uncinatus. Cyclops bicolor, and C. affinis. I have been
tempted to specially mention this pond, however, because of
the extensive alterations to which it has been subjected this year,
by which its normal area will be increased some three or four
fold. It will be very instructive to watch what effect these
changes will have upon the Entomostracan fauna.
Leyton Flats. The numerous pools and two or three
little ponds (exclusive of the "Hollow" pond) on the
open space bounded by Leytonstone, Walthamstow, and
Snaresbrook, and known as Leyton Flats, have together
yielded a very considerable number of Entomostraca. In
general the species are similar to those obtained at Cuckoo
Pits, but there are a good many additional forms. Some of
the most important of these are Chydorus latus, Diaptomus castor,
Cyclops bisetosus, C. bicolor, Canthocamptus crassus, Moraria anderson-
smithi.
Wake Valley Pond. This fine pond, although not
showing such an extensive array of species as some of the
others, is nevertheless a very fair collecting station, and has
yielded one species, Cyclops dybowskii, which has not been
noticed anywhere else in the district. Another characteristic
feature is the almost constant presence of the rare Cyclops
prasinus.
Warren Pond, Chingford. The extensive shallow
muddy margins of this pond render it a somewhat trouble-
some one to collect from, and the total number of species
seen here has not been so great as might have been antici-
pated. The occurrence, however, of Moina rectirostris in
considerable numbers in August, 1896, more than compensates
for any shortcomings in other respects.
Various small Forest Pools. Scattered about all
over the actually existing Forest there are frequently
to be found little pools among the trees, which usually
totally disappear in the summer. The Entomostraca to be
found in any one of these scarcely ever exceed two or three
species, although taken collectively some dozen species have
been seen from such localities. The really characteristic feature
of such pools seems to be the presence of one or more forms of