THE ENTOMOSTRACA OF EPPING FOREST. 327 Family—Harpacticidae. Canthocamptus staphylinus, Jurine.—C. minutus, Baird (2), Brady (16), Scourfield (82). Canthocamptus minutus, Claus (not C. minutus, Muller). —T. Scott (74), T. and A. Scott (76), Scourfield (85). Two stations, in addition to the two given in Table I., have yielded this little species, namely, a pond near Ambresbury Banks, and a little brook near the entrance to Gilbert's Slade. Canthocamptus trispinosus, Brady (16). Canthocamptus northumbricus, Brady (16). This rare species has only been found once in a tiny pool by the side of the Ching Brook near Connaught Water. Canthocamptus crassus, Sars.—Attheyella spinosa, Brady (16), T. Scott (64, Part III.); C. crassus, Scourfield (85). Leyton Flats and a pond near Oak Hill have been the only places where this has been found. Canthocamptus pygmaeus, Sars.—C. cryptorum, Brady (12); Attheyella cryptorum, Brady (16), T. Scott (64, Part III.); C. pygmaeus, Scourfield (85). It will be seen from Table I. that, next to C. staphylinus, this is the commonest species of the genus. The records would not have been nearly so numerous, however, if the practice of washing wet mosses had not been adopted. Canthocamptus zschokkei, Schmeil. — Attheyella propinqua, T. Scott (64, Part III); A. zschohkei, T. Scott (64, Parts V. and VII). This species, which is very closely allied to the foregoing, has only been found amongst some wet liverworts in a damp hollow between the "Perch Pond" and "The Lake," Wanstead Park. Nitocra hibernica, Brady. — Canthocamptus hibernicus, Brady (16). Moraria anderson-smithi, T. and A. Scott (74a).—T. Scott (64, Part III.); Ophiocamptus sarsi, T. Scott (64, Part V.), Schmeil (103). On each of the three occasions when this species has been taken it has been associated with sphagnum moss. In addition to Leyton Plats, it has been found in a bog near Oak Hill.