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Redescription of Catlaphilla Elongata Tripathi, 1960 (Copepoda, Lernaeidae) Parasitic on Catla Catla (Hamilton, 1822) (Teleostei, Cyprinidae) in Pakistan

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Catlaphilla elongata Tripathi, 1960 is redescribed based on specimens collected from the gill rakers of Catla catla (Hamilton, 1822) occurring in Lake Haleji near Karachi, Pakistan. The adult, transformed female is characteristic in having (1) the maxilla modified and armed with a robust hook for attaching to the host; (2) a nonprehensile antenna; (3) first and second pedigers fused to form a narrow neck; (4) third and fourth pedigers fused to form a large trunk; (5) a long, 3-segmented abdomen; (6) leg 1 with 2-segmented rami; and (7) legs 2-4 with 2- or 3-segmented, reduced rami. Catlaphilla elongata Tripathi, 1960 est redécrite à partir de spécimens collectés sur les branchiospines de Catla catla (Hamilton, 1822) du lac Haleji, près de Karachi au Pakistan. La femelle adulte, transformée, est caractéristique par (1) la maxille modifiée et armée d'un crochet robuste lui permettant de s'accrocher à l'hôte; (2) une antenne non préhensile; (3) les premier et second somites pédigères fusionnés pour former un cou étroit; (4) les troisième et quatrième somites pédigères fusionnés pour former un grand tronc; (5) un long abdomen tri-segmenté; (6) la première patte à rames bi-segmentées; et (7) les pattes 2-4 à rames réduites, bi-ou tri-segmentées.

Affiliations: 1: Department of Biological Sciences, California State University, 1250 Bellflower Boulevard, Long Beach, CA 90840-3702, U.S.A.;, Email:; 2: Department of Zoology, University of Karachi, University Road, Karachi 75270, Pakistan; 3: Department of Biology, Kagnung National University, Kangnung 210-702, South Korea


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