328 DESCRIPTION OF IPoli/gastrka. 



style, like a tail, but no uncini. Found in sea water. 

 Size 1 -400th. 



560. EuPLOTES aculeatus. The spinous Euplotes. — 

 Lorica oblong, nearly square, ends rounded; it has two 

 crests upon the back, one bearing a little spine in the 

 middle. Found in sea water. Size l-430th. 



561. Euplotes /?<rr//«s. The Chinese cap Euplotes. — 

 Lorica smooth, nearly circular; it has a long erect spine 

 on the centre of the back. Size l-600th to l-430th. 



562. Euplotes cimex {Trichoda cimex, M.) The smooth 

 Euplotes. — Lorica oblong, elliptical, and smooth. This 

 creature is provided with cilii, styles, and uncini. Found 

 in sea water. Size 1 -430th. 



