1. Bandyopadhyay PK, Mitra AK (2004) Description of a new species Zygocystis levinei sp.n. (Eugregarinida, Zygocystidae), from the earthworm Amynthas nicholsoni (Oligochaeta) from West Bengal, India. Protistology 3:227–231
2. Bandyopadhyay PK, Mitra AK (2005a) Observation of two new species of Monocystis Stein, 1848 (Protozoa: Apicomplexa: Monocystidae) Monocystis darjeelingensis sp.n. and Monocystis ranaghatensis sp.n. from earthworms (Annelida: Oligochaeta) of West Bengal, India. Anim Biol 55:123–132
3. Bandyopadhyay PK, Mitra AK (2005b) Observation on two new species of Nematocystis Hesse, 1909 (Protozoa: Monocystidae) from earthworms (Annelida: Oligochaeta) of West Bengal, India. Anim Biol 55:133–139
4. Bandyopadhyay PK, Mitra AK (2005c) Stomatophora cloptoni sp.n. (Apicomplexa: Eugregarinida) from the seminal vesicles of an Indian earthworm. Acta Protozool 44:385–388
5. Bandyopadhyay PK, Mitra AK (2005d) Description of a new gregarine species, Zygocystis perionyxae sp.n. (Protozoa: Zygocystidae), from the earthworm Perionyx gravelleyi (Annelida: Oligochaeta) from West Bengal, India. Protistology 4:91–95