M. Koidzumi 
293 
a length equal to about one-half that of the body. Filamentous appendages 
are found usually distributed thickly over a limited area of the surface, free 
from the flagellar cords, at the posterior end of the body, and small numbers 
of them are also found on the other parts of the body. The length of the 
Text-fig. E. Outline drawings of the species of Dinenympha. Drawn with camera lucida. (2 x x \.) 
a, D. exilis; b, D. rugosa ; c, D. nobilis ; d, D. leidyi ; e, D. parva ; f, D. porteri. 
organism is usually between 25/x and 50 [jl, the width some 8/x to 15 p,. The 
nucleus is spherical or oval, and situated at the anterior extremity. 
This form is found in common in both the Japanese species of Leucotermes. 
The forms described by Leidy under the name of Dinenympha gracilis appear 
