Monocystis satoi, 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/0387AA00-9B0A-B213-1390-DB39FA6CB2E2 |
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treatment provided by |
Felipe |
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scientific name |
Monocystis satoi |
| status |
sp. nov. |
Monocystis satoi sp. nov. Figures 5 View Figure 5 (A-E), 6(A-E) Table C & Table 3
Description
Gamonts are elongated, flat and oval shaped. One end rounded and other cone shaped. Presence of smooth and thick ectosarc. Endosarc is vacuolated. Presence of distinct rounded nucleus at the conical portion of the gamonts. Gametocysts are rounded contains two unequal gametocytes. Oocysts are biconical having pointed ends.
The gamont measures 96.55-125.00 (15.25±8.25) x 50.28-62.50(59.22±5.00) µm. Nucleus measuring
12.35-14.50(13.75±1.00) µm in diameter. Gametocyst measures 70.00-75.00(72.00±4.32) µm in diameter. Oocyst measures 15.17-18.17(16.70±1.35) in length 9.75-
11.25(10.00±1.00) µm in width.
Taxonomic Summary
Type host: Eutyphoeus orientalis
Site of infection: Seminal vesicles
Distribution: Ashoknagar, North 24 Parganas (23°15'2" N-89 °5'E), West Bengal, India.
Prevalence: 10 out of 35 host earthworms (28.57%) were infested with the parasite.
Material deposited
Holotype: PR/ MC/05 /12 has been deposited at the Parasitology Laboratory , Department of Zoology , University of Kalyani, Kalyani 741235, West Bengal, India.
Paratype: The paratype has been deposited in the Harold W Manter, Laboratory of Parasitology , Systematic Research Collections, University of Nebraska State Museum, W 436, Nebraska Hall, Lincoln, Nebraska 68588-0514 USA, (Accession no. P-2014-002; Reg. no. HWML 49896 View Materials ). Etymology : The species name have been given after the name of renowned parasitologist Prof. Hiroshi Sato, Joint Faculty of Veterinary Medicine of Yamaguchi University , 1677-1 Yoshida, Yamaguchi, 753-8515, Japan for his outstanding contribution in the field of Parasitology .
Remark
While compairing, the present species with Monocystis nidata , Monocystis pontodrilli and Monocystis darjeelingensis , it appears that the trophozoite is flat and oval shaped having one rounded and other conical end in the present form. Whereas in M. nidata , it looks like a small cell which possess two blunt ends, but in M. pontodrilli it is elongated having two broadly rounded ends. In M. pontodrilli the trophozoite crescent shaped and mucron is present in one end of the trophozoite. On the contrary, it is also crescent shaped in the present form. Nucleus is rounded and present in conical portion of the present species. But in M. nidata and M. pontodrilli , it is ovoid, centralized and rounded present either at the anteriormiddle or the posterior end respectively. Trophozoite is cylindrical with rounded extremities of one end and slightly wider than other in M. Darjeelingensis . In M. Darjeelingensis , nucleus is spherical in shape and present in the narrow portion. Furthermore, M. darjeelingensis is much larger in all respects than the present form and earlier described other species. The oocyst is navicular in M. nidata and M.darjeelingensis respectively.While, in M.Pontodrilli it is spindle or boat shaped but biconical in the current species. Moreover, M. nidata and M. pontodrilli have been described from Pontodrilus ephippiger of Asia and Indo-China and Pontodrilus barmudensis of South India respectively whereas, M.darjeelingensis and the present species have been reported from Amynthas robusta of Senchal lake of Darjeeling and Eutyphoeus orientalis of Ashoknagar, North 24 Parganas district of West Bengal, India respectively.
Taking into account all the differences with the closely related species, the present species seems to be new one. Hence the name Monocystis satoi sp. nov. is given here.
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