62 SPOROZOA. 



7. Nematocystis lumbricoides Hesse. (Fig. 9.) 



Nematocystis lumbricoides, Hesse, 1909, pp. 153-5, figs. Ixv, Ixvi. 

 ^Nematocystis lumbricoides, Bhatia & Chatterjee, 1925, p. 196, pi. viii, 



fig. 17. 

 Nematocystis lumbricoides, Cognetti, 1925, p. 231 ; Bhatia, 1929, 



p. 124. 



Trophozoite shaped hke an earthworm, swollen in the middle 

 and narrower at each end, anterior end somewhat rounded and 

 posterior end more pointed. Nucleus long and fusiform, with 

 a single karyosome. 



Dimensions. — Up to 1-5 mm. in length and 60 /x in thickness. 



Remarks. — Specimens examined by Bhatia and Chatterjee 

 from Pheretima heterochseta (Mchlsn.) at Lahore differed from 

 those described by Hesse from Helodrilus caliginosus Savig. 

 in France in that the size did not exceed 1 mm. by 31 /x, 

 the epicyte was not ornamented with parallel longitudinal 

 striations, and the nucleus was variable in position and con- 

 tained a single large oval karyosome placed eccentrically. 



Habitat. — Seminsd vesicles o£Pheretim£(, heterochseta (Mchlsn.) : 

 Punjab, Lahore. 



8. Nematocystis plurikaryosomata Bhatia & Chatterjee. 

 (Fig. 10.) 



■\Nematocystis plurikaryosomata, Bhatia & Chatterjee, 1925, pp. 195-6, 



pi. viii, figs. 13-16 ; pi. ix, fig. 25. 

 Nematocystis plurikaryosomata, Cognetti, 1925, p. 231 ; Bhatia, 1929, 

 p. 125. 



Trophozoite with a long and extremely deformable body. 

 No epicytal striations. Nucleus elongate and oval, with 

 several small karyosomes. 



Dimensions. — Up to more than 1 mm. in length and 100/x 

 in thickness. Gametocysts small, attaining a size of 140 ^a in 

 diameter. Spores 6-5-8-5jU, by 3"4ju, in size. 



Remarks. — The body of the parasite is very deformable and 

 shows constrictions and bulgings during the progression of 

 the parasite, the granular cytoplasm, together with the 

 nucleus, appearing to flow from one pole to the other. The 

 parasite differs from N. magna in that it lives free in the 

 seminal vesicles, has no polar ornamentations, no hairs round 

 its posterior pole, and in its nuclear structure. In stained 

 preparations the paraglycogen grains are seen to be aggre- 

 gated along the central region, leaving a clear peripheral zone. 

 The nucleus is variable in position and contains 6 to 12 large, 

 spherical karyosomes ; it measures 60 /x along its long axis. 



Habitat. — Seminal vesicles of Allolobophora (Eisenia) foetida 

 (Savig.) : Punjab, KasauH. 



