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Intestinal Protozoa in Termites 
A. Trichonympha group. 
Large forms of complicated organization, provided with numerous flagella. 
Three genera are distinguished: 
I. Trichonympha Leidy. 
Body oval or lanceolate, its posterior region destitute of flagella. I dis¬ 
tinguish two varieties of a single species: 
(a) T. agilis var. japonica var. nov. 1 (in Leucolermes speratus); 
(b) T. agilis var. formosana var. nov. (in Leucolermes flaviceps). 
II. Pseudotrichonympha Grassi. 
Very large, and spindle-shaped; the posterior region of the body provided 
with flagella arranged in spiral rows. One species: 
P. grassii sp. nov, (in Coptotermes formosanus). 
III. Ter atony mplia gen. nov. 
Very large, long and club-shaped. Numerous transverse ridges on the 
surface give the organism a segmented appearance, so that it resembles a 
cestode. Flagella arranged in transverse rows. One species and one variety: 
{a) T. mirabilis gen. nov. et sp. nov. (in Leucolermes speratus ); 
(b) T. mirabilis var. formosana var. nov. (in Leucotermes flaviceps). 
B. Holomasligotoides group. 
Large or small forms, less complicated than the preceding. Flagella arising 
in rows, which have a common point of origin at the anterior extremity and 
wind spirally backwards. Four genera are distinguished: 
IV. Microspironympha gen. nov. 
Body small, and spindle-shaped or piriform. A tubular structure connects 
the anterior tip of the body and the nucleus. Flagellar bands few, a rather 
large portion of the posterior region being free from them. One species: 
M. porleri gen. nov. et sp. nov. (in Leucotermes flaviceps). 
V. Holomastigotoides Grassi. 
Very large, piriform or ovoid, with flagellar bands distributed densely 
over almost the entire surface of the body. One species: 
H. hartmanni sp. nov. (in Coptotermes formosanus). 
1 Throughout this paper I have designated the new forms which I have found in Japanese 
termites as “var. nov.,” “sp. nov.,” etc. The majority of these have, however, already been 
described and named in my earlier papers (1916, 1917). But these were written in Japanese, and 
were therefore inaccessible to most zoologists; and I am, moreover, uncertain whether the names 
can be regarded as having any status in international nomenclature. I have therefore marked 
all such names as technically “new” in the present memoir. 
