Opalina. 271 
It seems probable that some of the refractive bodies found in Fla- 
gellata and Foraminifera are of the same general nature. There 
Seems to be something the same doubt as to the origin of the 
A 
Text Fig. VIII. 
Sections of Hoplitophrya uncinata : 
A, stained with Mayer’s haemalum, 
shows the unstained refractive sphe- 
rules in the macronucleus; B, stained 
with iron-haematoxylin shows the 
refractive spherules in the macro- 
nucleus darkly stained, the micro- 
nucleus and a bit of the cytoplasmic 
foam being also shown; C, stained 
with Aparuy’s haematein I A and 
orange G, shows unstained refrac- 
tive spherules both in the dividing 
macronucleus and in some of its 
scattered fragments. The light area 
in the micronucleus is not a refrac- 
tive spherule. >< 1010 diameters. 
C 
refractive bodies in Pelomyxa that there is as to their origin in 
Opalina. Greer (1874) and Gonpscumipt (1905) describe them as 
arising from the nucleus, Gounp (1893) says that they divide by 
