1895 



THE MICKOSCOPE. 



41 



Cilia inserted under and upon the lower border of oral 

 disk, as shown in fig. 1, and fringed on curved side with 

 very fine serrations, as shown in fig. 3. When at rest 

 cilia lie flat, curved upon the margin of the oral disk. 

 The left hand disk, in fig. 1, appears double, the upper 

 disk having two very long cilia, one on each side. Food 

 was ejected through the upper and received into the 

 lower opening. Figure 1 shows the infusorian with 

 anterior parts protruded, and with cilia expanded. 



Just below 

 the oral disks 

 is a contractile 

 vessicle in each 

 of the animals, 

 pulsating once 

 in 30 to 45 sec- 

 onds. Also a 

 vessicle in the 

 body, as shown. 

 On the slight- 

 est disturbance 

 the animals al- 

 most instanta- 

 neously with- 

 drew into the 

 lorica. When 

 about to pro- 

 trude from the 

 shell they appeared as in fig. 2, with cilia in shape of a 

 pointed brush. No valve could be discovered. 



Particles of food were easily seen passing down and 

 up through the extended necks near center. 



On examination the next evening the animals were 

 dead, but the lorica was in good shape. They were kept 

 over in a moist chamber under cover on slide. 



I find several other species and genera of the Peritri- 

 cha in this vicinity. 



Mr. Redding would perhaps assist our readers about 

 identifying forms they may find. — Editor. 



