单脏科吸虫二新种  

TWO NEW SPECIES OF HAPLOSPLANCHNIDAE (DIGENEA) FROM LIZA CARANATUS FROM THE TAIWAN STRAITS, CHINA

作　　者：刘升发[1] 

机构地区：[1]厦门大学生命科学学院,厦门361005

出　　处：《水生生物学报》2003年第5期531-534,共4页Acta Hydrobiologica Sinica

基　　金：国家自然科学基金 (No.3 9870 14 4);福建省自然科学基金 (B0 0 10 0 0 2 );福建省青年科技人才创新项目 ( 2 0 0 170 46)资助

摘　　要：单脏吸虫 ,新种Haplosplanchnuslizaesp nov 和巨卵希氏单脏吸虫 ,新种Schikhobalotremamegaovussp nov 检获于厦门集美附近海域棱Lizacarinatus肠道。单脏吸虫 ,新种Haplosplanchnuslizaesp nov与该属已知种的双腺单脏吸虫H bivitellosusZhukov,1971最为相似 ,它们都具有 2列卵黄腺 ,但在卵黄腺的组成和虫卵大小方面存在明显差别 ;巨卵希氏单脏吸虫 ,新种Schikhobalotremamegaovussp nov .与该属已知种的区别在于其虫卵 [0 130—0 14 2× 0 0 96— 0 12 0 (0 133× 0 10 8) ]特别大。Two new species of haplosplanchnid trematodes were descripted from Liza carinatus from the Taiwan Straits, China in this paper. Type specimens are deposited in Parasitology Research Laboratory, School of Life Sciences, Xiamen University. Measurements are given in millimeters, as the ranges followed by the mean in parentheses, unless otherwise stated. Haplosplanchnus lizae sp. nov. (Fig. 1) Type host:Liza carinatus (Cuvier et Valenciennes). Site of infection: Intestime. Type locality: Xiamen (118°03′58″—11′48″E,24°25′24″—33′14″N), Fujian Province, China. Date:Between Sept., 1999 and June, 2001. Prevalence: 313 specimens from 88 of 275 hosts. Description: (based on 10 mounted specimens) Body fusiform or short club-shaped, 1.00—1.40×0.49—0.68(1.23×0.60). Tegument smooth. Oral sucker subterminal, 0.144—0.208×0.188—0.232(0.170×0.200). Acetabulum 0.216—0.292×0.200—0.296(0.249×0.255). Sucker ratio 1∶1.22—1.48(1∶1.37).Prepharynx obscure or absent. Pharynx global,0.072—0.092×0.088—0.104(0.082×0.095). Esophagus 0.048—0.144(0.092)long. Intestine 0.168—0.312(0.245)long. Testis single, rounded or elliptical, 0.136—0.296×0.148—0.248(0.175×0.176),near posterior end of body. Seminal vesicular tubular, 0.608—0.696×0.032—0.042(0.661×0.038),terminating between acetabulum and ovary. Pars prostatica short, surrounded by prostatic cells. Genital pore between pharynx and acetabulum. Overy nearly global, 0.054—0.125×0.062—0.112(0.084×0.095),pretesticular. Receptaculum seminal sac in shape, 0.076—0.116×0.062—0.120(0.099×0.089),Uterus between testis and acetabulum. Vitellaria poorly developed, comprised by small vitelline follicles to form two bands on the dorsal side between ovary and acetabulum. Egg ovoid, 0.064—0.94×0.038—0.056(0.081×0.048). Fully embryonated eggs contain miracidia with eye-spots. Excretory vesicle “Y” shaped. The present species most closely resembles H. bivitellosus Zhukov, 1971 from Mugil so-iuy and M. cephalus from the basi

关 键 词：吸虫纲 单脏科 单脏属吸虫 鮻单脏吸虫 希氏单脏属吸虫 巨卵希氏单脏吸虫 新种 

分 类 号：Q959.152[生物学—动物学]