Nematocystis indica sp. n. (Protozoa, Apicomplexa, Eugregarinida) , an endoparasitic monocystid gregarine from the seminal vesicles of an Indian earthworm Amynthas diffringens Baird (Annelida, Oligochaeta)

Bandyopadhyay, P.K.; Mallik, P.; Mitra, A.K.mar

Protistology 4(4): 357-360


Accession: 023096071

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During an ongoing biotic survey of the gregarine parasites of the earthworms of West Bengal, India, a new species of the genus Nematocystis Hesse, 1909 was obtained from the seminal vesicles of the earthworm Amynthas diffringens Baird. The new species is a perfect nematode-like organism, solitary with several bulges and constrictions, especially in mature forms. Its average size is 2773.3 x 30.6 μm. Nucleus elongated, measuring on the average 46.2 x 14.8 μm. Extreme ends rounded. Gametocysts rounded to ovoid, measuring on the average 88.2 μm in diameter. Oocysts navicular, average size 17.9 x 11.7 μm.