701 
Transactions of the Society. 
Acineta pyriformis. Fig. 16. 
Lorica broadly ovate or sub-pyriform in outline, twice as long as 
broad, obtusely pointed at the anterior extremity, the lateral borders 
convex, slightly constricted near the truncate posterior extremity ; 
pedicle short, its length less than one-half the diameter of the lorica, 
often somewhat curved ; tentacles few, capitate, protruded from the 
anterior apex ; contractile vesicle in the anterior body-half, appa- 
rently single; nucleus not observed; endoplasm usually coarsely 
granular, entirely filling the cavity of the lorica. Length of the 
lorica 1/1125 in. Hab. attached to aquatic plants in shallow 
ponds. 
