226 Journal of the Asiatic Society of Bengal. [June, 1913. 
colour. In progression the broader (morphologically posterior} 
end was directed forwards. Their movements were compara- 
tively slow and they did not gyrate on their long axis so fre- 
quently as the larvae of Pectinatella burmanica,'! which they 
resembled closely in appearance. In structure they agree with 
normal larvae of the typical race as described by Braem,* but the 
apical mass of nerve cells at the ‘‘ posterior’ extremity appears 
to be larger than his figures* would suggest and the cavity 
within the external membrane is decidedly greater. Thelarvae 
refused to settle on the walls of the aquarium or on the stones 
and weedsit contained, probably on account of the high tempera- 
ture of the room. 
While some colonies from the lake, more particularly those 
from stones, contained statoblasts in October, others had none, 
or only a few in an early stage of development. The thickening 
buds of the Paludicellidae, if not an actual homolo 
and becomes also to some exte 
thick and dark. All statoblasts, even in this race of F. suliana, 
are not produced in zooecia with thickened walls ; but it seems 
1 Annandale, Faun. Brit. Ind., Freshwater Sponges, etc., p. 237. 
1908). 
directly into resting buds. th i 
tat not absolutely complete, | pred ip ie ae 3 
ud. 
