| 1. | Gastropod - african snail gastropod - african snail
腹足纲软体类非洲蜗牛 |
| 2. | The fossils of algae , ostracoda , foraminifera , gastropod and polychaeta were found in the tertiary carbonate beds in the west of chaidamu basin
摘要柴达木盆地西部第三系的碳酸盐岩层中发现有藻类、介形虫、有孔虫、腹足类、多毛类等化石。 |
| 3. | Fish stocking in niushan lake eliminated submersed macrophytes and gave indirect effect on biomass in niushan lake to an extent that gastropod was only 1 / 5 as much of a typical macrophytic lakes such as hong lake
牛山湖中鱼类的放养使水草出现衰退，该湖底栖动物虽然仍以螺类等刮食者为上，但生物见只有洪湖等典型草型湖泊的1 5 。 |
| 4. | Sperm bimorphism is a common phenomenon through the animal kingdom , especially in gastropod , such as most of mesogastropod and neogastropod and some of archeogastropod
精子双态现象是动物界尤其是腹足类的一个普遍现象：原始腹足类( archegastropod )中仅少数具有双态精子，中腹足类( mesogastropod )和新腹足类( neogastropod )中大多数都具有双态精子。 |
| 5. | From the late middle ordovician to the end of ordovician , the cephalopods , gastropods and corals in the erlangping trough , and the conodonts , coral , brachiopods , cephalopods as well as trilobites in the xichuan shelf were from the north china province
在中奥陶世晚期至奥陶纪末，二郎坪海槽的腹足类、头足类和珊瑚与浙川陆棚的牙形石、珊瑚、腕足类、头足类和三叶虫均属华北生物省。 |
| 6. | Many foreign scholars and a few chinese scholars have studied the ultrastructure of the mature sperm and spermatogenesis of gastropod ; however , nobody has studied the ultrastructure of the mature sperm and spermatogenesis of cipangopaludina chinensis
关于腹足类软体动物精子和精子发生的超微结构，国内研究甚少，国外研究较多；但有关中国圆田螺精子和精子发生的超微结构的研究，尚未见报道。 |
| 7. | The changes of 14 assemblages reflect 11 paleoclimate evolutioinary stages in this area during the quaternary . in the cold period , the climate was dry and enviroment was deficient of water , therefore , the terrestrial pulmonata was dominant in the gastropod fauna
本文对北京平原区第四纪软体动物化石进行了初步的研究，建立了14个组合带，反映了本区第四纪时期经历了大约11个古气候演变阶段。 |
| 8. | In the warm period , the aquatic bivalvia was well - developed , and the gastropod fauna was obviously prosperous and characteristic by large amount of the aquatic species . the alternative appearance of both cold and the warm mollascan assemblage tpyes reflects the features of the quaternary climate changes in this area
在冷期因气候干燥，环境中水量减少，腹足类化石以陆生肺螺类最为发育；在暖期水生双壳类较为发育，腹足类群明显繁盛，以水生种类的大量出现为特征。 |
| 9. | Cipangopaludina chinensis is a normal kind of freshwater gastropod and has high economic values because it can be food for people , which not only tastes well but also is high nutrient , and it can be the bait for some carnivorous fish and some omnivorous fish such as mylopharyngodon piceus and cyprinus carpio
中国圆田螺cipangopaludinachinensis是我国一种常见的可供食用的淡水螺，滋味鲜美，具有较高营养价值；同时它还是青鱼、鲤鱼等肉食性鱼类和杂食性鱼类的优良天然饵料，因而具有较高的经济价值。 |
