Euplota.} THE INFUSORIA. 327 



554. EUPLOTES patella. The dish-like Euplotes. Lorica 

 large, nearly circular, slightly truncated anteriorly, the 

 margin transparent, broad, the back elevated, gibbous, and 

 covered with a few delicate smooth striae. The mouth is 

 ciliated on each side, the O3sophagus is near the side, lower 

 than the middle, the discharging orifice behind the basis 

 of the styles. Found with lemna. Size l-280th. 



555. EUPLOTES charon (Trichoda charon, M.) The 

 pearled Euplotes, or the little Charon. Lorica small, ovato- 

 elliptical, slightly truncated anteriorly, and having granu- 

 lated striae on the back ; twenty to forty cilii were counted 

 by Ehrenberg, but no setae ; white ova, propagative glands, 

 and a contractile vesicle, have been -seen. Figures 350 to 

 353 represent different views. Found in standing water 

 and infusions. Size 1-1 150th to l-280th. 



556. EUPLOTES striatus. The striated Euplotes. 

 Lorica oblong, elliptical, slightly truncated anteriorly, un- 

 cini only upon the posterior part of the body ; there are 

 four smooth striae upon the back. Found in sea water. 

 Size l-240th. 



557. EUPLOTES appendiculatus. The spurred Euplotes. 

 Lorica ovato-oblong, ends rounded, provided with ob- 

 lique styles, and four straight setae upon the posterior part 

 of the body. Found in sea water. Size 1 -240th. 



558. EUPLOTES trwicatus. The truncated Euplotes. 

 Lorica oblong, with smooth striae, unequally truncated, 

 and notched anteriorly. It has setae and numerous un- 

 cini. The styles are straight. Found in sea water. Size 

 1 -240th. 



559. EUPLOTES monostvlus. The tailed Euplotes. 

 Lorica elliptical, ends rounded, no striae. It has a single 



