海洋纤毛虫一新属,伪小双虫属及新组合──拉氏伪小双虫  

DESCRIPTION OF THE MARINE CILIATE PSEUDOAMPHISIELLA LACAZEI,(MAUPAS,1883) NOV. GEN., NOV. COMB. (PROTOZOA,CILIOPHORA, HYPOTRICHIDA)

作　　者：宋微波[1] 

机构地区：[1]青岛海洋大学水产学院,青岛266003

出　　处：《海洋与湖沼》1996年第1期18-22,共5页Oceanologia Et Limnologia Sinica

基　　金：国家自然科学基金!39370091

摘　　要：于1991年4月在青岛一贝类养殖池中采集到一大型腹毛目纤毛虫。研究表明，该纤毛虫代表一新属（伪小双虫属）并由此建立起一新组合——拉氏伪小双虫。该属特征为：左右各有一列纵行的腹棘毛，其右侧一列前端与口困带相接；有额、口棘毛分化；横棘毛高度发达并上行至虫体胞口后方。As a result of the faunistic investigation on marine ciliates (collectedfrom a shellfish cultural pond of Qingdao) supported by the NNSFC, a newgenus, Pseudoamphisiella and a new combination, Pseudoamphisiella lacazei(Maupas, 1883) (= formerly Holosticha lacazei, Maupas, 1883) are erected andredescribed:Diagnosis of the new genus long elIipsoid Amphisltllidae (? ) with oneleft and one right marginal row each, which are connected posteriorly;frontotCrminal, transverse and ventral rows derived from 'numerous'FVT-anlagen; frontal and buccal cirri present, transverse cirri extremely developed,no typical midventral rows.Type species Pseudoamphisiella lacazei (Maupas, 1883) nov. comb.Remarks Pseudoamphisiella nov. gen. differs from the other morphologically'related' genera in the unique origin of the ventral ciliature, the connected margitnal rows and highly developed transverse cirri.The morphology and infraciliature of this species, after reinvestigationperformed by the author, suggest that the new combination is justified. It isdistinguished with the following characters: large marine form in vivo 200 - 300×70 - 100μm with numerous short-bar-shaped subpellicular extrusomes. 50 - 60macronucleussegments; about 11 dorsal kineties and 66-73 marginal dtri; ca.20 transverse cirri which extend onto the anterior 1/2 of the body. Onefrontoterminal and one ventral row, each with 14 - 16 and 16 - 21 cirriseparately. Each of the obliquely arranged ventral cirri oriented (characteristically!)in an upper-right-to-down-left direction.

关 键 词：海洋 纤毛虫 腹毛目 伪小双虫 拉氏伪小双虫 

分 类 号：Q959.117[生物学—动物学]