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Type: Articles
Published: 2005-07-08
Page range: 15–19
Abstract views: 81
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Observations on a new species of Monocystis Stein, 1848 (Protozoa: Apicomplexa: Monocystidae) Monocystis levinei sp. nov. from an Indian earthworm (Annelida: Oligochaeta) Eutyphoeus incommo-dus

Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, West Bengal, India
Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, West Bengal, India
Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, West Bengal, India
Protozoa Acephaline gregarines Monocystis levinei sp. nov. earthworm seminal vesicles India

Abstract

Surveys of acephaline gregarines infesting earthworms from Kalyani of Nadia districts of West Bengal, India revealed the occurrence of a new species of Monocystis Stein, 1848. Monocystis levinei sp. nov., found in the coelomic fluid of the earthworm. Trophozoites of M. levinei sp. nov. are elongated in shape, 145.0–175.0 (163.0±1.5) µm x 18.0–43.0 (29.0±1.1) µm with a prominent taillike protrusion at the posterior end, measuring 7.0–10.0 (7.9±7.9) µm x 1.5–3.1 (1.8±2.1) µm and rounded nucleus, measuring 14.2–26.3 (22.3±7.3) µm x 18.4–30.5 (26.4±2.6) µm. Gametocysts are ovoid in shape ranging from 130.0–163.0 (152.0± 0.4) µm, whereas oocysts are navicular in shape, ranging in size from 8.9–12.0 (10.4±1.0) µm x 5.2–7.3 (6.9±0.5) µm.

References

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