斜体虫属国内一新纪录及八种稀见淡水原生动物新分布

ANEW CHINESE RECORD OF ENCHELYOMORPHA AND NEW DISTRIBUTIVE SPECIES OF NINE RARE FREE LI VING PROTOZOAN OF FRESH WATER IN CHINA

本文记述分布于兰州地区不同性质淡水及工业废水中九种自由生活的原生动物，包括一种我国新纪录一蠕斜体虫（Ｅｎｃｈｅｌｙｏｍｏｒｐｈａｖｅｒｍｉｃｕｌａｒｉｓ）及八种在我国新分布的稀见原生动物：神女新态虫、爬行鞭变形虫、三臂佛手虫、多态喇叭虫、短小齿口虫、钝舟形虫、冠帆口虫、伪怪游虫及袋形虫属的顽袋形虫。分别阐明每种的识别特点，发现水体及每种作为水质污染指示物的指示作用、分类位置等。

This paper describes nine species of free-living protozoa found in various types offreshwaters and industrial wastewaters in Lanzhou, northwest China. Enchelyomorphavermicularis is a new record to China. Eight rare protozoa, including caenomorphamedusula, Mastigmocba reptans Bursaridium difficile,Epalxella exigua, Teuthoprys trisulica,Lembadion bullinun,Pleuronema cornatum, and Astylozoon fallax were first reported in thesearea. Descriptions were made on the characteristics, habi tats and taxanomic positions ofeach species,and their roles as indicators of water pollution.