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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2015 Vol.34 No.3

Description of A New Species of Genus Dactylogyrus (Monogenea: Dactylogyridae) Parasitizing Gills of Host Fish Garra mirofrontis from Lancang River, Yunnan Province
Author of the article:Lancang River1, XIAO Jingfang2, LI Jun1, MENG Feiyan3, WANG Jianjun1, XU Weijiang1*
Author's Workplace:1. School of Life Sciences, Engineering Research Center of Sustainable Development and Utilization of Biomass Energy of Ministry Education, Yunnan Normal University, Kunming 650500, China;
2. College of Agronomy and Biological Technology, Yunnan Agricultural University, Kunming 650201, China;
3. Station of Environmental Monitor of Xishuangbanna, Jinghong, Yunnan Province 666100, China
Key Words:Lancang River; Garra mirofrontis; Dactylogyrus; new species
Abstract:A new species of genus Dactylogyrus (Monogenea: Dactylogyridae), Dactylogyrus lancangjiangensis sp.nov., from gills of the host Garra mirofrontis (Cyprinidae) was described in this study. The host was collected from Jinghong city of Lancang River basin, Xishuangbanna of Yunnan Province, 22°00.288' N, 100°47.430' E. Out of the 28 fishes, 19 were infected with the new parasites with prevalence 68%. The mean total body length was about 317 μm, and the mean total body width was 101 μm. The haptor of the new species was consisted of a pair of anchors, 7 pairs of marginal hooks and a connection piece and a accessory connection piece. The connection piece was line-shaped, and became narrow in the middle but wide on both ends; the connection accessory piece was moon-shaped. The copulatory organs were prominent with copulatory tube and hander. The base of copulatory tube was spherically dilated and directly narrowed to form a very thin tube bending 3 to 5 spirals. The hander was clavate and complex, and the end of copulatory tube was throughout the hander. The taxonomic feture of the new species was distinctly distinguished from the recorded Dactylogyrus species, especially the male copulatory organs and haptoral sclerites. In view of the host-specificity and coevolution between Monogenea-fish associations, D. lancangjiangensis sp. nov. was considered as a new species. The specimens were conserved in School of Life Sciences, Yunnan Normal University.
2015,34(3): 403-406 收稿日期:2014-9-3
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