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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->2016 Vol.35 No.5

Two New Species of Genus Dactylogyrus Diesing, 1850 (Monogenea: Dactylogyridae) Parasitizing Hemiculter leucisculus (Cyprinidae) from the Langcang River, China
Author of the article:MENG Feiyan1, LI Jun2, LI Yunzhen1, FAN Lixian1*
Author's Workplace:1. School of Life Science, Yunnan Normal University, Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Kunming 650500, China;
2. College of Agronomy and Biological Technology, Kunming 650201, China
Key Words:monogenea; Hemiculter leucisculus; Dactylogyrus; new species; Lancang River
Abstract:This study described two new species of the genus Dactylogyrus, which were collected from the gills of the cyprinid fish Hemiculter leucisculus (Basilewsky, 1855). The cyprinid fish were collected from the Lancang River, Jinghong basin of Yunnan province, 100°47'43″E, 22°0'28″N. The two new Dactylogyrus species are freshwater species and double-bar species. Based on the morphological differences of the types of haptoral sclerites and male copulatory organs (MCOs), the new two species Dactylogyrus bannaensis sp. nov. and D. jinghongensis sp. nov. were named according to the location of their hosts, respectively. D. bannaensis sp. nov. was distinguished by the different features from all the recorded species of the genus, especially D. nilkolskyi Gussev, 1955. D. bannaensis sp. nov. has a male copulatory organ with a copulatory tube that elongate into left body margin of the parasite, distally recurved, directed straight process, long-ribbon-like, also possessing a complex accessory piece. And the infection rate of this parasite is 100%(40/40). The other new species D. jinghongensis sp. nov., parasitizes the same host as Dactylogyrus bannaensis sp. nov., is distinguished by the rainbow-like copulatory organ from its congeners (D. erythroculteris and D. pannosus). For the MCOs of D. jinghongensis, one of the ends expansion and funnel-type, distally extending to shaft fold and a V-type accessory piece, middle part enclosing copulatory tube and distal part process an attenuated tube. The infection rate of D. jinghongensis is also 100%(40/40).
2016,35(5): 709-718 收稿日期:2015-12-07
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