似杯盘虫属(单殖亚纲,鳞盘虫科)三新种描述  

DESCRIPTION OF THREE NEW SPECIES OF THE GENUS CALYDISCOIDES (MONOGENEA,DIPLECTANIDAE)

作　　者：李海燕[1] 

机构地区：[1]广州大学生命科学学院,广州510006

出　　处：《动物分类学报》2007年第2期423-429,共7页Acta Zootaxonomica Sinica

基　　金：广州大学2003年科研项目资助

摘　　要：记述了寄生于广东海洋鱼类黄唇裸颊鲷Lethrinus xanthochilus(Klunzinger),弱棘眶棘鲈Scolopsis eriomma(Jordan et Richardson)和金线鱼Nemipterus virgatus(Houttugn)鳃上的似杯盘虫属Calydiscoides Young,19693新种,锚形似杯盘虫Calydiscoides ancoratus sp.nov.,强壮似杯盘虫Calydiscoides robustus sp.nov.和深圳似杯盘虫Calydiscoides shenzhenensis sp.nov.,3新种的鳞盘、背腹中央大钩、中央联结片和侧联结片均相似于已知种,但它们的交接器和阴道与已知种不同。This paper described three new species of the genus Calydiscoides Young, 1969, parasiting in the gills of Lethrinus xanthochilus （Klunzinger, 1870）, Scolopsis eriomma （Jordan et Richardson, 1909 ） and Nemiplerus virgatus （Houtugn, 1782）. The specimens are deposited in School of Biological Science, Guangzhou University. All measurements are in millimeter. 1 Calydiscoides ancoratus sp. nov. （Figs. 1-9） Host. Lethrinus xanthochilus （Klunzinger, 1870）. Location. Gills. Locatity. Raoping （23.7°N, 117°E）, Guangdong Province. Date. 4 Mar. 2005. Type specimens. Holotype Gdgz20050304-1, paratype Gdgz20050304-2-25. Etymology. This species is named cncoratus because of its anchorshaped vaginal sderite. Body elongate, （0.83-1.17） × （0.11-0.16） in size. haptor set off from body, （ 0.099-0. 120 ） × （0.086-0. 114） in size, with 1 pair of dorsal central and 1 pair of ventral central anchors supported by 2 dorsal central transverse bars （forked at 1 end） and 1 ventral central transverse V-shaped bar. Fourteen marginal hooks, larval-shaped, 0.010-0.013 in length. Two squamoidiscs, dorsal and ventral, each lamellodisc with 9-10 concentric lamellae, lamellae telescope upon each other. The shape of the two squamodisc is similar to ladder-shaped or rings, （ 0.021-0.039 ） × （ 0.026- 0.039） in size, two dorsal central anchors without roots differentiation, 0.042-0.055 in total length. Two ventral central anchors with well-developed roots; 0.049-0.057 in total length, basal portion 0.035-0.042, point 0.010- 0.014, inner root 0.016-0.019, outer root 0.010- 0.017.One ventro-medial transverse （0.062-0.073） ×（0.007-0.009） in size, two dorso-laeral transverses （0.042-0.055） × （0.006-0.008）in size. The testis oval, （0.098-0.112） × （0.045-0.070） in size, vas deferens convoluted, intercaecal; ascends to level of copulatory organ, ovary elongate, （0.065- 0.093） × （0.010-0.015）in size. Copulatory tube curv

关 键 词：单殖吸虫 鳞盘虫科 似杯盘虫属 海洋鱼类 新种 

分 类 号：Q959[生物学—动物学]