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《Acta Zootaxonomica Sinica》 1985-01
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LIU YUE-YING (Institute of Zoology, Academia Sinica, Beijing)LI BING-ZHENG LIU TIE-CONG (Department of Parasitology, Chinese Medical University Shenyang)  
This paper deals with a new species and a new Chinese record of the Hydrobiidae collected from Jilin Province. Type specimens are deposited in the Institute of Zoology, Academia Sinica.Parafossarulus anomalospiralis sp. nov. (figs. 1-3)Holotype (JL 838301): length 18.0mm, breadth 9.5mm; length of aperture 7.0 mm, breadth of aperture 6.0mm; Hailong, County, Jilin Province; July 24,1983, Para-types 10, length 15.0-17.5 mm, breadth 9.0-9.5 mm; length of aperture 6.0-7.0 mm, breadth of aperture 5.0-6.0 mm; collected with the holotype.Shell large, thick, conoidal. Whorls 4, well convex, with deep suture; spire about 2/3 of the length of the shell. Surface yellowish-brown or grey, with fine growth lines and spiral ridges. Body whorl with a conspicuous dark brown line parallel to the growth lines. Aperture ovate, peristome continuous, with a brown edge. Umbilicus deep. Operculum calcareous, with concentric growth lines on the edge, and with spiral lines on the central section.Male copulative organ situated on the centre of the neck, behind the tentacle, thick and curve, with blunt tip. Radula formula:2-1-2/4(5)-(5)4; 4-1-2; 15-16; 9-11.Parasite: Clonorchis sinensis (Gobbold).This new species differs from Parafossarulus striatulus (Benson) in the larger size, in the presence of a conspicuous dark brown line parallel to the growth lines on the bodywhorl, and in the radula formula being 2-1-2/4(5)-(5)4;4 - 1 - 2; 15 - 16; 9 - 11,Bithynia kiusiuensis (Hirase)The new record collected with Parafossarulus anomalospiralis sp. nov..
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