福建省福清海滩大弹涂鱼寄生鱼蛭一新种(蛭纲:吻蛭目:鱼蛭科)  

A NEW SPECIES OF FISH LEECH PARASITIC ON BOLEOPHTHALMUS PECTINIROSTRIS FROM THE BEACH OF FUQING CITY IN FUJIAN PROVINCE (HIRUDINEA: RHYNCHOBDELLIDA: PISCICOLIDAE)

作　　者：杨潼[1] 

机构地区：[1]中国科学院水生生物研究所,武汉430072

出　　处：《动物分类学报》2002年第2期212-216,共5页Acta Zootaxonomica Sinica

基　　金：国家自然科学基金重大项目资助

摘　　要：记述采自我国福建省福清海滩大弹涂鱼体上的鱼蛭科热蛭属一新种 ,命名为福清热蛭Aestabdellafuqingensissp .nov .,并就形态特征对热蛭属已知 3个种与本种的区别进行了比较与讨论。During May to June of 1999, 53 specimens of fish leech (Hirudinea: Rhynchobdellida: Piscicolidae) from the bodies of some teleosts, Boleophthalmus pectinirostris , were collected by Prof. ZHANG Qi Yong at the beach of Fuqing City, in Fujian Province of South East China (25°72′S,119°39′ E).They are identified a new species of the genus Aestabdella and named Aestabdella fuqingensis sp. nov. Type specimens are deposited in the Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan. Description of the new species are given in the present paper. Aestabdella fuqingensis sp. nov. (Figs 1 3) Measurement in mm: length 14 16?mm; width, anterior sucker 0 3 0 5?mm, maximum( ⅩⅤ ⅩⅪ) 1 2 1 6?mm, caudal sucker 1 4 1 8?mm. Body of mature individual is divided distinctly into trachelosome and urosome;trachelosome is short and subcylindrical; urosome is relatively longer and flattened. In young individuals the body is subcylindrical and less distinctly divided into two regions. Body surface smooth, colour brown, without longitudinal stripes and pigmentation pattern on dorsum; lacking tubercles, papillae, gills, or pulsatile vesicles.Dorsum of anteior sucker has two pigment bands,one pair of dot eyes in lower band.Normally 12 annuli between the anterior sucker and the clitellum. The clitellum consisting of 7 annuli. Gonopores separated by 2 5 or 2 0 annuli, the male pore on 16 annulum and the female pore at 18/19 annuli. At the segment ⅩⅢ body widens to form slight shoulders, which make beginning of the flattend urosome. From segment ⅩⅤ through ⅩⅪ sides of body almost parallel. These midbody segments separately include 6 annuli, which subdivided into 14 annuli. From segment ⅩⅫ urosome gradually narrows and joins with caudal sucker slight anteior to its center. The anus lies between segments ⅩⅩⅥ and ⅩⅩⅦ. Typical arrangement of proboscis and salivary gland cells. Esophageal diverticula present in segment Ⅹ. Crop with fiv

关 键 词：福建 福清海滩 大弹涂鱼 寄生鱼蛭 新种 蛭纲 吻蛭目 鱼蛭科 

分 类 号：Q959.194[生物学—动物学] S941.526[农业科学—水产养殖]