Reference

N. Chakraborty, D.P. Haldar, T.K. Kundu (1982): Studies in Cephaline Gregarines (Protozoa: Sporozoa) from Insects: Life History of Retractocephalus raphidopalpae Haldar and Chakraborty, 1976 and Four New Species of the Genus Retractocephalus – Archiv für Protistenkunde – 125_1982: 41 - 62.