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Page 1-21.FH10 ISSN 0375-1511 Rec. zool. Surv. India: 113(Part-4): 159-166,2013 AN ANNOTATED LIST OF PROTOZOAN PARASITES BELONGING TO THE GENUS MONOCYSTIS VON STEIN, 1848 (APICOMPLEXA: CONOIDASIDA: EUGREGARINIDIDA: MONOCYSTIDAE) DESCRIBED FROM OLIGOCHAETE HOSTS SUTAPA SARKAR AND P. K. BANDYOPADHYAY Parasitology Laboratory, Department of Zoology, University ofKalyani, Kalyani -741235, West Bengal, India. Email: [email protected] INTRODUCTION have been described from different oligochaete Apicomplexan are parasitic, with the hosts of different geographical region. Till date gregarines exclusively infecting invertebrate eighty five species of Monocystis have so far been hosts. Gregarines are a group with two forms, established throughout the world from the septate and aseptate. Aseptate gregarines oligochaete hosts. But there is no systematic contains 400 species while the septate gregarines checklist of the species. In view of this it is contains about 900 species (Levine, 1977). In the considered useful to prepare a updated checklist aseptate gregarines (acephaline) the trophozoite of the species. The checklist is presented below in has one compartment while in the septate forms Table: 1. Tabulated are the type hosts, (cephaline) there are several compartments. distribution, site of infection and the original Gregarines are certainly significant from^ an reference to the data. evolutionary point of view because of their REMARKS suspected early diverging position. The genus The paper contains the name of eighty six Monocystis was established by Von Stein in 1848. described species of the genus Monocystis under They are chiefly coelozoic or lumen dwelling the faniily Monocystidae from oligochaete hosts. protozoan of invertebrates, especially arthropods and annelids, considered as aseptate gregarines. SUMMARY Genus Monocystis Von Stein, 1848, are In this communication, eighty six species characterized by, without any mucom, ovoid belonging to the genus Monocystis Von Stein, 1848 gamonts, short or elongated body, solitary, have been incorporated. The species have been biconical oocysts, and symmetrical (Levine, 1988). described from different oligochaete hosts from Some species are especially important because different geographical distribution. The sites of they can cause diseases in invertebrates. Only few infections have also been indicated. The paper reports are available concerning biodiversity will throw some light on the systematics of among Monocystis species based on Monocystis species, since study of Monocystis is morphological characterization. Levine, 1988 listed seventy foiir species of the genus Monocystis important froni the evolutionary point of view. under the family Monocystidae, two of them have ACKNOWLEDGEMENTS been described from non oligochaete hosts. Later One of the authors (SS) is thankful to the on, many scientists worked on the aseptate authorities of the University of Kalyani, Kalyani gregarines. Many species of the genus Monocystis for extending their permission to work at the 160 Rec. zool. Surv. India 0) o U I II U u U u u -a Tl Tl o § § 0) t> l> l> t> l> t> l> l> l> l> l> en ^ ^ en en > u cncncnUUcncncn UUHUcncncncncn 1 01 05 ^ T3 HI C ns HI aj IB ns cu I a I o ^ B 60 ? OJ % en u I QJ CJ QJ <U CU S s U U U U U - _ ni TS 1 O n a § a a a "BJ § ^ <u w ffi D ^ P4 ft ft pL^p:^pL^pL^px^pLlp^c/Ki O OwfoO£>5cKcKft :l 5 B o a 13 -a e "•c 1- s S ^ ^-S 1e o 8 •43 i CO « m &• -§ S K O •e i ^=3 -S K :l O g III -s e •43 e s B 13 o o (^ 1-4 w '--' •43 s s60 c>so • •£ s^ u o o II 52.0 11 I J ^ g 60 >i ^ 13 '-^ -r- u S i I I O 3 s s CO cs •g ^ 2? 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Sum. India Parasitology Laboratory of the Department of Zoology, University of Kalyani, Kalyani 741235, Nadia, West Bengal, India and the scientists of Zoological Survey of India, Calcutta 700016 for identification of the host specimens. REFERENCES Bandyopadhyay, P.K., Roychoudhuri, U.S. and Biswas, G. 2001. Observation on an endoparasite (Apicomplexa: Sporozoa) from the earthworm of West Bengal, India. U.P.]. Zool., 21 (1): 65-67. Bandyopadhyay, P.K. and Biswas, G. 2002. Studies on an endoparasite. Monocystis nadiensis sp. n. from the earthworm of Nadia, West Bengal, India, Trans, zool. Soc. East. Ind., 6 (1): 12-15. Bandyopadhyay, P.K. and Mitra, A.K. 2005a. Observations on two new species of Monocystis Stein, 1848 (Protozoa: Apicomplexa: Monocystidae) Monocystis darjeelingensis sp.
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