30. Plumatella emarginata (p. [220]).
Mr. Kemp took bushy masses of this species in Malwa Tal and Bhim Tal.
32. Plumatella diffusa (p. [223]).
This species is common in Malwa Tal and Bhim Tal in May.
33. Plumatella allmani (p. [224]).
Mr. Kemp only found this species in Malwa Tal, in which (at any rate in May) it appears to be less abundant than it is in Bhim Tal in autumn. Mr. Kemp's specimens belong to the form called P. elegans by Allman.
34. Plumatella tanganyikæ (p. [225]).
Specimens taken by Mr. Kemp, somewhat sparingly, in Bhim Tal and Sath Tal in May exhibit a somewhat greater tendency towards uprightness of the zoœcia than those I found in autumn in Igatpuri lake. The ectocyst is, in the former specimens, of a deep but bright reddish-brown. The zoaria are attached to twigs and small stones.
Genus STOLELLA (p. [229]).
After Stolella indica, p. 229, add a new species:—