22 G- 0. Sars. 



As to habits, it is more generally found on the bottom 

 of the aquarium, moving about rather quickly through the 

 loose mud. Now and then however, it is, seen to ascend 

 the walls of the aquarium in search of food, and at other 

 times to swim rather rapidly through the water in a similar 

 manner to that observed in the species of Cypvis. It is, 

 however, on the whole less active than these forms, and in 

 this respect holds the mean between the species of Cypris 

 and Candonocypvis. 



Occurrence. — The mud from which this form was 

 raised, was from only one of the two samples received, 

 viz , that taken from the swamp of Bon Kamera. 



