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(4):227–231
2. Bandyopadhyay PK, Mitra AK (2005a) Observation on two new species of Nematocystis Hesse, 1909 (Protozoa; Monocystidae) from earthworms (Annelida: Oligochaeta) of West Bengal, India. Animal Biol 55:133–139
3. Bandyopadhyay PK, Mitra AK (2005b) 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(2):91–95
4. Bandyopadhyay PK, Mitra AK (2006) Dirhynchocystis indica (Apicomplexa, Rhynchocystinae), a new gregarine species from the earthworm Lampito mauritii (Annelida, Oligochaetae) in India. Parasitology 4(3):201–207
5. Bandyopadhyay PK, Roychudhuri US, Biswas G (2004) Descriptions of two new species of acephaline gregarines (Protozoa: Apicomplexa: Eugregarinida), Apolocystis chotonagpurensis sp. n. and Stomatophora janovyi sp. n. from Earthworms (Annelida: Oligochaeta) of India. Acta Protozoologica 43:275–279