THE OPALINID CILIATE INFUSORIANS. 



57 



fection, from Kagi, Formosa, September 1 to 20, 1907, H. Sauter, 

 collector ; and specimen No. 35297, 42 mm. long, same label. 



Measurements of a full-sized mdvuidual. — Length of body 0.3 mm. ; 

 width of body 0.035 mm. ; legnth of nucleus of one individual 0.025 

 mm., of a second individual 0.015 mm. ; width of nucleus of first in- 

 dividual 0.0065 mm., of second individual 0.0075 mm. ; diameter of 



a 



Fig. 32. — Peotoopawna filiformis : a, an ordinary individual, X 460 diameters ; 



6, THE NUCLEI OF A SIMILAR INDIVIDUAL. X 1,000 DIAMETERS. 



endospherule 0.0015 nun.; cilia line interval, anterior 0.00135 mm., 

 posterior 0.0025 mm. 



In all individuals of this species, except of course those in active 

 mitosis, only one of which was found, the nuclei are in the condi- 

 tion of two pear-shaped or spindle-shaped daughter nuclei, still 

 united by a very long thread. Each daughter nucleus has passed a 

 83103—23 5 



L 



