Mallik Partha, Bandyopadhyay Prabir K
Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, West Bengal, India
Ann Parasitol. 2016;62(4):315-320. doi: 10.17420/ap6204.67.
Surveys on aseptate gregarines in earthworm hosts in different districts of West Bengal state of India revealed the existence of one new species of aseptate gregarine of the genus Nematocystis Hesse, 1909 have been identified from the seminal vesicles of the earthworm, Glyphidrilus tuberosus Stephenson, 1916 in the district of Purba Midnapur, West Bengal of India. Gamonts of the organism are very much elongated, cylindrical, nematoid and without mucron. The terminal end adjacent to the nucleus rounded and the distal end pointed. The gamonts measure 846.45-1031.13 (931.86±70.48) μm in length and 18.40-20.45 (19.43±1.05) μm in width. Nucleus elongated or depressed elliptoid, measures 53.17-63.39 (60.33±3.28) μm in length and 13.29-16.36 (14.15±0.89) μm in width. The gametocysts are slightly ovoid, measuring 110.43-120.65 (114.31±3.44) μm in diameter. Oocysts navicular and measure 9.24-10.39 (9.78±0.40) μm×5.77-6.16 (6.04±0.18) μm. Based on critical analysis and comparison with earlier reported species, the species under discussion established as new one.
对印度西孟加拉邦不同地区蚯蚓宿主中无隔簇虫的调查显示，从印度西孟加拉邦普尔巴米德纳布尔地区的蚯蚓Glyphidrilus tuberosus Stephenson（1916年）的精囊中鉴定出一种1909年黑塞属（Nematocystis Hesse）的无隔簇虫新物种。该生物体的配子体非常细长，呈圆柱形，线虫状且无短尾。靠近细胞核的末端圆润，远端尖锐。配子体长度为846.45 - 1031.13（931.86±70.48）μm，宽度为18.40 - 20.45（19.43±1.05）μm。细胞核细长或凹陷呈椭圆形，长度为53.17 - 63.39（60.33±3.28）μm，宽度为13.29 - 16.36（14.15±0.89）μm。配子囊略呈卵形，直径为110.43 - 120.65（114.31±3.44）μm。卵囊呈舟形，尺寸为9.24 - 10.39（9.78±0.40）μm×5.77 - 6.16（6.04±0.18）μm。基于批判性分析并与早期报道的物种进行比较，所讨论的物种被确定为新物种。
