江苏南京淡水海绵新发现  

FRESHWATER SPONGES FROM NANJING, JIANGSU PROVINCE

作　　者：赵真 李春香[1,2] 严贤琴[4] 杨群 马俊业[1,2] ZHAO Zhen;LI Chunxiang;YAN Xianqin;YANG Qun;MA Junye(State Key Laboratory of Paleobiology and Straligraphy.Nanjing Instiute of Geology and Palaeontology.Chinese Academy of Sciences,Nanjing 210008.China;Center for Excellence in Life and Paleoemvironment,Chinese Academy of Sciences,Nanjing 210008.China;University of Chinese Academy of Sciences,Beijing 100049.China;Geological Er ploration Technology Institute of Jiangsu Province,Nanjing 210049,China)

机构地区：[1]现代古生物学和地层学国家重点实验室中国科学院南京地质古生物研究所,南京210008 [2]中国科学院生物演化与环境卓越创新中心,南京210008 [3]中国科学院大学,北京100049 [4]江苏省地质勘察技术院,南京210049

出　　处：《微体古生物学报》2021年第1期72-83,共12页Acta Micropalaeontologica Sinica

基　　金：中国科学院战略性先导科技专项B类项目(编号:XDB26000000);国家自然科学基金(41972019)资助。

摘　　要：本文报道了2种发现于江苏南京珍珠泉的淡水海绵新种,包括Eunapius rarus Zhao et Ma sp. nov和E.nanjingensis Zhao et Ma sp. nov.其中,E.rarus首次显示Eunapius存在小骨针,为双尖带刺型(microsclere acanthoxeas)。另外,E.nanjingensis的鉴别特征为,芽球骨针多样,双尖为主,部分钝头,表面光滑或有刺,中部膨大。此外,我们对已报道的中国淡水海绵的生物地理分布进行了分析与讨论。We report two species of freshwater sponges collected in Jingshan Lake(Zhenzhuquan Park) in the northern suburb of Nanjing, including Eunapius rarus Zhao et Ma sp. nov. and E. nanjingensis Zhao et Ma sp. nov. E. rarus improve for the first time the presence of microsclere in Eunapius sponges, microscelre acanthoxeas. In addition, E. nanjingensis is distinguished by possessing both spiny oxeas and strongyles of gemmuloscleres of variable sizes with variable spines;gemmuleosceres often possess the swellings of up to half its length. We also discussed the biogeographic distribution of freshwater sponges so far reported from different areas in China and their probable biogeographic provinces.

关 键 词：SPONGILLIDAE Eunapius 新种 淡水海绵 南京 

分 类 号：Q915.8[天文地球—古生物学与地层学]