似杯盘虫属4个中国新记录种的记述(单殖吸虫纲:鳞盘虫科)  

NEW RECORDS OF FOUR CALYDISCOIDES SPECIES IN CHINA ( MONOGENEA: DIPLECTANIDAE)

作　　者：郑晓淇 周形 刘琳[1] 丁雪娟[1] ZHENG Xiao-Qi;ZHOU Xing;LIU Lin;DING Xue-Juan(Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, School of Life Science, South China Normal University, Guangzhou 510631, China)

机构地区：[1]广州市亚热带生物多样性与环境生物监测重点实验室华南师范大学生命科学学院,广州510631

出　　处：《寄生虫与医学昆虫学报》2017年第4期236-242,共7页Acta Parasitologica et Medica Entomologica Sinica

基　　金：国家自然科学基金项目(Nos.31572232;31172051)

摘　　要：记述采自中国南海鱼类的4种鳞盘虫科单殖吸虫,分别是寄生于姬鮨Tosana niwae鳃的眶棘鲈似杯盘虫Calydiscoides scolopsidis Lim,2003,寄生于裸颊鲷Lethrinus spp.鳃的澳洲似杯盘虫Calydiscoides australis Young,1969、棱纹似杯盘虫Calydiscoides duplicostatus(Yamaguti,1953)Young,1969与复杂似杯盘虫Calydiscoides difficilis(Yamaguti,1953)Young,1969。其中,眶棘鲈似杯盘虫的交接器长管状,支持器末端扩大呈斧状,阴道片状,底部连接一弯管;澳洲似杯盘虫交接器由背腹两块骨片构成,腹片末端分叉,背片具薄膜,阴道球状且中部具不规则褶皱;棱纹似杯盘虫交接管基部分叉,支持器Y形,右支长度约为左支的1/3,末端连接一几丁质管;复杂似杯盘虫交接器由两块大几丁质片构成,阴道由杯状部与块状部构成。所获标本与原始描述基本一致。眶棘鲈似杯盘虫、澳洲似杯盘虫、棱纹似杯盘虫与复杂似杯盘虫均为我国新记录种。Four species of Calydiscoides Young, 1969 were collected from marine fishes off South China Sea and recorded in China for the first time. C. scolopsidis Lim, 2003 obtained from the gills of Tosana niwae; C. australis Young, 1969, C. duplicostatus （Yamaguti, 1953） Young, 1969 and C. difficilis （Yamaguti, 1953） Young, 1969 were collected from the gills of four species of Lethrinus. They can be distinguished mainly by the structure of their male copulatory organ （MCO） and vagina. The MCO of C. scolopsidis is tubular, and the distal part of accessory piece with slightly expanded as axe- shaped; sclerotized vagina plate-shaped, with a tube at its distal part. The MCO of C. australis consists of ventral sclerite with bifurcate extremity and dorsal sclerites with menbranous element; vagina globular, with convoluted undulations at the middle. The MCO of C. duplicostatus with bifurcate extremity, accessory piece Y-shaped, and the length of right branch is about 1/3 of the left branch and there is a sclerited tube at the end of the right branch. The MCO of C. difficilis consists of two large complex pieces, and its vagina consists of cup-shaped sclerite and a large sclerited pieces. The shape and dimensions of the four species were basically in agreement with the original description of these species. All specimens are deposited in the Laboratory of Fish Parasitology, School of Life Science, South China Normal University.

关 键 词：单殖吸虫 鳞盘虫科 似杯盘虫属 中国新记录 

分 类 号：S941.5[农业科学—水产养殖]