Monocystis csabai, Sarkar & Kundu & Bandyopadhyay, 2019
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publication ID |
https://doi.org/ 10.26515/rzsi/v119/i4/2019/142223 |
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persistent identifier |
https://treatment.plazi.org/id/0387AA00-9B04-B211-1056-D849FCC9B662 |
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treatment provided by |
Felipe |
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scientific name |
Monocystis csabai |
| status |
sp. nov. |
Monocystis csabai sp. nov. Figures 7 View Figure 7 (A-D), 8(A-D) Table
D & Table 4
Description
The trophozoite is elongated, irregular flat ribbon shaped contains tapering pointed end. Ectosarc is thick and the endosarc is vacuolated. Large, rounded very distinct nucleus is present at the middle portion of the body. Syzygy is present. In the life cycle of the present form two unequal overlapping almost rounded gametocyte have been found. Oocyst is biconical with pointed ends.
The trophozoite measures 132.0-160.0(145.0±4.50) x 30.0-35.0(32.2±2.50) µm. Nucleus measuring 15.5-
20.0(17.2±1.5) µm in diameter. Gametocyst measures
60.0-70.0.5(65.0±2.50) µm. Oocyst measures 9.0-12.5 (11.0±1.5) x 6.5-7.5(7.0±0.96) µm.
Taxonomic Summary
Type host: Eutyphoeus orientalis
Site of infection: Seminal vesicles
Distribution: Bakkhali (Sundarban) region, South 24 parganas (22.1352ºN, 88.4016ºE), West Bengal, India
Prevalence: 10 out of 25 host earthworms (40%) were infested with the parasite.
Material deposited
Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani-741235, Nadia, West Bengal, India.
Paratype: The paratype has been deposited in the Harold WManter, Laboratory Parasitology, Systematic Research Collection University of Nebraska State Museum W 436, Nebraska Hall, Lincoin, Nebraska 68588-0514 USA 4 (Accession no. P-2014-002: Reg. no. HWML 49895 View Materials ) .
Etymology: The species name have been given after the name of renowned parasitologist Prof. Csaba Szekely of Institute for Veterinary Medical Research, Centre for Agriculture Research, Hungarian Academy of Sciences, Budapest Hungaria Krt.21 for his outstanding contribution in the field of fish parasitology.
Holotype: PR/ MC/34 /12 has been deposited at
the Remark
The present species under discussion compares with Monocytsis apporectodae and Monocystis elongatum . The species under discussion has elongated, irregular, flat and ribbon like trophozoite, appears gradually tapering pointed end which is flame like in appearance. Whereas, it is elongated, irregular, flat like having both side pointed ends in M. apporectodae and in M. elongatum it is elongated and curved. Large and rounded nucleus is present in the present form. But in M. apporectodae , it is ovoidal contains densely packed karyosome and in M. elongatum nucleus is rounded to ovoid. Ectosarc is thick in the present specis while, in M. apporectodae , it is thin and in M. elongatum it is smooth. The present form has vacuolated endoplasm whereas in earlier described species endoplasm is densely granulated. The syzygy stage is found in the life cycle of both species. Moreover, the size and shape of the gametocysts and oocysts of the current form are also different from the previously described
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