单孔科拟囊腔属吸虫一新种  

One new species of Saccocoelioides (Digenea: Haploporidae) from Liza carinatus in Taiwan Strait

作　　者：刘升发[1] 

机构地区：[1]厦门大学生命科学学院寄生动物研究室,福建厦门361005

出　　处：《台湾海峡》2002年第1期37-44,共8页Journal of Oceanography In Taiwan Strait

基　　金：国家自然科学基金资助项目 (39870 144 ) ;福建省自然科学基金资助项目 (B0 0 10 0 0 2 )

摘　　要：拟囊腔吸虫 ,新种Saccocoelioideslizaesp .nov .发现于棱　Lizacarinatus的消化道 .同已知种相比 ,无论虫体大小还是各器官的形态结构及分布 ,新种与S .magniovatusSzidat,1 954和Saccocoelioidesbeauforti(Hanter&Thomas,1 961 ;Over streef,1 971 )最为相似 .但S .magniovatus没有前咽 ,虫卵 (0 .0 95～ 0 .1 1 4× 0 .0 41～ 0 .0 60 )较大且卵黄腺几乎呈“V”形 ;而Saccocoelioidesbeauforti的食道较长 ,肠叉位于腹吸盘之后 ,肠管止于卵巢之后 ,虫卵里的毛蚴不具眼点 .The paper deals with a new species of Saccocoelioides Szidat, 1954 obtained from the intestine of Liza carinatus (Cuvier et Valenciennes). 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. Saccocoelioides lizae sp. nov. (PlateⅠ) Type host:Liza carinatus (Cuvier et Valenciennes). Prevelence and infectivity: 37.2% (105 infected/282 examined), 1～327 (12) helminths per fish. Site of infection: Intestine. Type locality: Jimei,Xiamen(24°25′24″～33′14″N, 118°03′58″～11′48″E), Fujian, China. Etymology: The specie name refers to its host Liza carinatus. Description (Based on 18 specimens): Body elliptical, broad at ovarian level, 0.690～0.990×0.300～0.406 (0.848×0.358). Tagument spinose from anterior end to near posterior end of body. Pigment distributed in forebody. Oral sucker subterminal, 0.080～0.106×0.092～0.128 (0.094×0.113). Acetabulum 0.094～0.110×0.080～0.120 (0.102×0.109), situated at the junction of anterior and middle third of body. Sucker ratio 1∶0.84～1.22 (1.04). Prepharynx 0.024～0.084 (0.058) long. Pharynx globular, 0.058～0.072×0.058～0.078 (0.063× 0.064 ). Esophagus 0.080～0.150 (0.119) long. Esophagus/Pharynx length ratio 1.3～2.6 (1.9)∶1 . Intestinal bifurcation at middle or anterior to acetabulum, and caeca ending anterior to ovary. Testis single, oval to spherical, 0.080～0.168×0.066～0.156 (0.119×0.119). Posttesticular space 0.130～0.374 (0.219) long. Harmaphroditic sac thick-walled, nearly rectangular, 0.110～0.160×0.076～0.136 (0.129×0.097), largely or entirely anterior to acetabulum; contents including tubular internal seminal vesicle, 0.064～0.152×0.016～0.032 (0.098× 0.022 ), with its anterior portion turning posteriorly; prostatic complex 0.020～0.040 (0.028) long; metraterm 0.020～0.030 (0.024) long; and muscular hermaphroditic duct, 0.054～

关 键 词：吸虫纲 单孔科 拟囊腔属 Suo拟囊腔吸虫 形态结构 

分 类 号：Q959.152[生物学—动物学]