190 Journal of the Asiatic Society of Bengal. [May, 1906. 
Spongilla carteri produces comparatively few gemmules in 
Calcutta, where the Freshwater Sponges are not desicated during 
the hot weather as they are in Bombay but apparently perish 
owing to the rise in temperature which takes place at the end of 
March or the beginning of April. Moreover, these few gemmules 
are formed chiefly towards the interior of the Sponge, which may 
reach a diameter of at least six inches, and are mostly retained in 
movable 
skeleton d 
Oheetogaster spongille reproduces its kind prolifically by bud- 
ding and subsequent fission; but I have ok found individuals 
bodies such as 
young individuals newly separated from a budding parent. here 
7 a tendency, however, for the latter species to desert 
its host at the beginning of the hot weather, and it is not 
e clitellum becomes more conspicuous at te 
end of winter ; but I have not been able to detect the gonads even 
m Specimens in which this change had occurred. 
The Insects which inhabit Spongilla carteri belong to sovers’ 
species ; but as they are all immature I cannot venture on 8 2 
determinations, The most numerous belong to the Dipterous 
family of Chironomide or Midges, 
Curronomus sp, (larva). ! 
One type of larva (possibly including several al!ied specie’) 
a 
a 
ne 
Bas ; 
% 
» as in Cheetogaster bengalensis, is already visible ™ — 
