30 
Transactions of the Society. 
Family Chlamydodonta Stein. 
Genus Chilodon Ehrbg. 
Chilodon steini Blochmann. 
Found in water containing bottom mud, from a small pool 
close to the bank of the river Ravi in July 1920. An average 
specimen measured 90//, by 42//,. The body was strongly asym- 
metrical, flattened and flexible, and the animal moved with a 
gliding and undulating movement. The longitudinal striations 
were fine, but well marked, and the ciliation was fine and close. 
The mouth was situated in the anterior third of the body, succeeded 
by a trumpet-shaped gullet containing delicate rods. The oblique 
line of cilia which generally extends from the beak to the gullet 
was not present in the specimen that came under my observation, 
which appears to be the case in certain other species also — for 
instance, C. dubius Maup. and C. gourandi Certes. Numerous 
small vesiculse were distributed in all parts of the body, including 
the beak. The macronucleus was large, oval, finely granular, and 
contained a large central, vesicular body. The micronucleus could 
not be made out. The body did not contain any diatoms, but 
round disc-shaped, or oval green algae. 
Family Pleuronemina Btitschli. 
Genus Gyclidium (Hill) Ehrbg. 
Cyclidium glaucoma O.F.M. emend. Ehrbg. 
Numerous specimens of this species were found in water from 
a fountain-pond in Mozang in May 1920, and measured on an 
average 18//, in length. The body was egg-shaped, with an elon- 
gated bristle at the posterior end, and the cilia were fine and 
elongated. The cuticular surface was longitudinally striate. The 
peristome did not extend much further behind the middle of the 
body, and the undulating membrane was large, hood-like, and 
extensile. The macronucleus was central, and the contractile 
vacuole was situated near the posterior end. 
HETEROTRICHA. 
Family Bursarina Butschli. 
Genus Bursaria 0. F. Muller. 
Bursaria truncatella O.F.M. 
Specimens referable to this species were found in considerable 
numbers in the water of a burrow-pit ( chaubacha ), close to a garden 
well in the Gol Bagh, in December 1919. As observed by Kent, 
the species “ is apparently by no means a cosmopolitan form, but 
