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1.
在西沙群岛湖间带底栖硅藻的研究中发现了２个新种。Ａｍｐｈｏｒａｐｕｎｃｔａｔａｓｐ．ｎｏｖ，Ａｍｐｈｏｒａｍｉｃｒｏｍｅｔｒｏｉｄｅｓｓｐ．ｎｏｖ，１个待定种和Ａｍ．ａｆ．ｃａｓｔｅｌｌａｔａ等１４个新记录。 相似文献
2.
描述了采自东海陆架沉积物中自由生活线虫Hopperia和Nemanema属的两个新种。新种大化感器霍帕线虫主要特征是螺旋形化感器5圈，较大；弓形交接刺近端宽大具有中肋，延伸至三分之一处；引带具有弯曲的引带突；6个乳突状的肛前辅器；锥柱状尾具有膨大的末端和尾端刚毛。新种小线虫的主要特征是身体大小是属内最小的；具有较大的椭圆形化感器；尾锥状；交接刺细，具有腹面翼膜，近端弯钩状；引带环形；1个肛前辅器乳突状，其上着生3条刚毛。更新完善了Hopperia属17个种的二岐检索表。 相似文献
3.
文章描述了采自青岛胶州湾潮下带沉积物中自由生活线虫Wieseria属的两个新种。新种Wieseria sinica sp.nov.特征为具有短的唇刚毛和头刚毛，且指向后方；具有椭圆形双边化感器；弓形的交接刺具有翼膜；环状的引带以及棒状尾。新种Wieseria tenuisa sp.nov.特征为具有大的德曼值（133.6）；长的唇刚毛指向前方；交接刺具有翼膜，近端呈钩状；引带呈棒状；具有相当长的棒状尾（长度相当于7.9倍泄殖腔相应体径）。它区别于新种Wieseria sinica sp.nov.主要在于更长的唇刚毛，且指向前方；交接刺相对较直且具有钩状近端，身体更加细小（德曼“a”值较大）。文章更新完善了的Wieseria属的二岐检索表。 相似文献
4.
浮游介形类是海洋生态系统中极为丰富的一类小型甲壳动物，是海洋浮游动物的重要组成部分。吸海萤科是介形纲吸海萤目下的一大类群，其中，浮萤族已记述21属的生物。本文报道和描述了新近采自南海中部的一个浮萤族新属新种--复合多腺浮萤。该新物种与相关属和种可通过综合相关特征进行区分：位于右不对称腺体上方的侧角腺开口于近后缘；沿其壳腹缘具有一列排列密集的边缘腺；其前器官形状的综合特点与族内其他属物种均不同；第一触角的e刚毛不具有毛或刺；第二触角内肢乳状突表现为一具有腹面中央凹的椭圆隆起，第一外肢具有一根小背前缘刺，第一与第二外肢愈合，第三与第四外肢不具有刚毛或刺；大颚的第一内肢具一根长腹侧刚毛，第二内肢具一根腹侧刚毛；小颚第一内肢具两根基部刚毛；第五肢的第一外肢仅具一根腹侧刚毛；第六肢的第一与第二外肢不具有腹侧刚毛。其壳上主要腺体及开口位置与其他已记录属种的显著区别是该新属的主要特征。 相似文献
5.
HUANG Yong 《海洋学报(英文版)》2012,31(1):95-97
One new species of free-living marine nematode Cephalanticoma brevicaudata sp. nov. from the South China Sea is described. Cephalanticoma brevicaudata sp. nov. is characterized by spindle body with relatively short tail; head with cephalic capsule; three teeth at anterior of pharynx; excretory pore opens posterior to cervical setae; three cervical setae per file; spicules arcuate, cephalate and ventrally bent proximally, and blunt distally, 1.8 a.b.d. long, without ventral ala; gubernaculun slender, simple rod, without apophyses; tubular supplement 34 μm long, 2.3 a.b.d. in front of cloaca. 相似文献
6.
虫动物系动物界的一个小门，属真体腔原口动物。海生，世界种约１４０种，我国黄渤海目前发现４种，分隶于２目，２科，４属，其中有一新种－青岛池体Ｉｋｅｄｏｓｍａ？ｑｉｎｇｄａｏｅｎｓｅｓｐ．ｎｏｖ。现将该４种的分类、分布和生态特点记述如下： 相似文献
7.
厦门岛附近自由生活海洋线虫的研究—联体线虫科的变异毛咽线虫和异毛联体线虫新种 总被引：1，自引：0，他引：1
本文地发现于厦门大学海滩潮间带泥基质区两种联体线虫科（Comesomatidae Filipjev,1918)的虫种进行了描述，异毛联体线虫新种（Paracomesoma xiamenense sp.nov.)由于其第二圈感觉毛的长度相同，并且比第三圈头感觉毛短；交合刺两根不等长并有两列、每列28－30个肛前乳突以及肛后的柄状乳突等特征使得该种成为一个新种。变异毛咽线虫（Dorylaimopsis variabilis Vincx,1997)的侧边分化的纵列刻痕；弓形的交合剂、突出的背尾侧骨突和14个肛前乳突等特征同Vincx(1997)的描述相近，但某些测量的数值有差别。本文并给出了异毛联体线虫属新的双歧式检索表。 相似文献
8.
For 3 years aspects of the population dynamics, growth, and bioactivity (measure of biologically active metabolite biosynthesis) of the Demospongiae Latrunculia sp. nov. and Polymastia croceus (Kelly‐Borges & Bergquist) were examined on a subtidal reef on the Wellington south coast, New Zealand. For both species, survival of adult sponges was high in all seasons, whereas juvenile sponges had poor survival. Recruitment of Latrunculia sp. nov. occurred in all seasons indicating that this species is reproductively active throughout the year. P. croceus recruited mostly in autumn, supporting previous work that found the sponge to be reproductively active in summer and early autumn only. For both sponge species, growth rates varied greatly between individuals and were unaffected by initial sponge size within the range examined. Sponges generally grew during winter and spring as the water temperature rose, and shrank during summer and autumn as the water temperature fell. This growth pattern may relate to seasonal variation in food abundance, and for P. croceus it may result also from seasonal differences in reproductive investment. After 2 years, Latrunculia sp. nov. and P. croceus had on average, halved and doubled in size, respectively. Latrunculia sp. nov. showed a seasonal pattern of bioactivity, being most active in spring possibly to prevent the surface overgrowth of fouling organisms. P. croceus had no seasonal pattern of bioactivity, but individuals were either very active or inactive. The bioactive metabolites in both species possibly aid in competitive interactions and prevent predation and biofouling. 相似文献
9.
ZHANG Xiaojun FANG Hai CHEN Cuizhen ZHAN Wenbin JIN Xiaomin WANG Xiuyun 《海洋学报(英文版)》2005,24(3):131-140
Appropriate pathogenic bacteria were isolated from diseased (or dead) flounder (Paralichthys olivaceus L) occurring in a mariculture farms of Qinhuangdao, which all diseased fishes expressed bacterial septicaemia. The phenotypic information of the 12 pure cultures was studied extensively, including morphological characteristics, colony characteristics in different media, physiological and biochemical characteristics, and the mole fraction G C ratio of the DNA for representative strain. The results show that the isolates belong to a new species of Vibrio, and are designated as Vibrio qinhuangdaora sp.nov, by the area from which the diseased flounders are collected (Qinhuangdao) based on its biological properties following Rules of International Code of Nomenclature of Bacteria. At the same time,studies on the serum homology ofisolates, and pathogenicity of isolates were conducted by experimental infection. The results show that all the isolates are of serologic similarity, and the isolates have strong pathogenicity to flounder. The studies can extensively reflect the main biological properties of this new species of Vibrio. 相似文献
10.
Halocyprid ostracods are appreciable part of ostracods floating through virtually everywhere in marine environment.In this study,we describe a new species of genus Polyconchoecia Xiang,Chen and Du,2018,tribe Conchoeciini Chavtur and Angel,2011,family Halocyprididae Dana,1853 from the middle of the South China Sea.Polyconchoecia chenii sp.nov.is very close to P.commixtus Xiang,Chen and Du,2018.But it differs from P.commixtus by the distinctions of locations of major glands of carapace and the characteristics of appendages:more posteriorly situated left asymmetric gland of carapace,no right asymmetric gland;segmented frontal organ;the endopod 2 of the first antenna with a very small seta;a-and c-setae of the first antenna with long end joint have long end joint,the b-and d-setae have no end joint,spinose e-seta without end joint;the e-seta of the second antenna is present;teeth side is distinctive;the setal counts of the mandible,maxilla,fifth limb,and sixth limb are individual.The locations of the major glands on carapace and the characteristics of the first antenna can be the key of the new species.This work is the second discovery of the genus Polyconchoecia from the world. 相似文献
11.
The samples of Anthomedusae were collected from the Guangdong coastal water,China.Three new species of Anthomedusae,i.e.Zhangiella condensum Huang,Zhang et Sun,sp.nov.,Hydractinia leizhouensis Huang,Zhang et Yang,sp.nov.,and Cladosarsia simplex Huang,Zhang et Ke,sp.nov.are described.All type specimens are deposited in College of Ocean and Earth Sciences,Xiamen University. 相似文献
12.
中国碱蓬属植物修订 总被引：1，自引：0，他引：1
本文对《中国植物志》藜科(Chenopodiaceae)碱蓬属(Suaeda Forsk. ex Scop.)长期存在的分类错误进行了纠正。将其中的高碱蓬S. altissima (L.) Pall.合并入碱蓬S. glauca (Bunge) Bunge,纵翅碱蓬S. pterantha (Kar. et Kir.) Bunge合并入刺毛碱蓬S. acuminata (C.A. Mey.) Moq.,同时增加了垦利碱蓬(新种)S. kenliensis J. W. Xing sp. nov。由此将中国碱蓬属(Suaeda)植物从原来的20种,变更为19种。并重新修订了中国碱蓬属(Suaeda)植物的分种检索表,使中国碱蓬属(Suaeda)植物的系统分类更趋于完善,为《中国植物志》的修订和碱蓬属(Suaeda)植物分类及其深入研究与开发利用提供了依据。 相似文献
13.
A few species in the genus Grateloupia (Halymeniaceae,Rhodophyta) have been investigated in detail with respect to morphological observations and molecular analyses.In this study,the authors document the vegetative and reproductive structures of two new species of Grateloupia,G.dalianensis H.W.Wang et D.Zhao,sp.nov.and G.yinggehaiensis H.W.Wang et R.X.Luan,sp.nov.They both have the morphological character that carpogonial ampullae and auxiliary cell ampullae are the simple Grateloupia-type.The two species can be distinguished from other species of the genus by their distinctive morphological features respectively.Based on ribulose-1,5-bisphosphate carboxylase/oxygenase (rbcL) gene sequences,the phylogenetic tree obtained in the study indicated that they are both embedded within the Grateloupia clade.G.dalianensis clusters a subclade with G.asiatica,and G.yinggehaiensis forms a single monophyletic subclade with G.hawaiiana. 相似文献
14.
绒扇藻属(Avrainvillea)藻体广泛分布于热带、亚热带海洋，尤其盛产于珊瑚礁上。因此，该属种类的分布在很大程度上受海区的限制。绒扇藻属的主要特征是藻体深绿色，褐绿色或黑褐色，基部是由假根状丝体相互交织，构成固着器，固着在礁石上。叶柄单生或具有多次分裂。叶片单个或多个，形状不一，多数为扇形，长圆形，肾形到扁压。藻体不钙化，通常黄色或褐色。二叉状分枝，基部常常缢缩，似念珠状或念珠状。皮层丝体无明显分化或具假皮层。关于绒扇藻属海藻的分类研究，至今为止，已发现23个种。
关于中国绒扇藻属的研究，最早是C.K.Tseng(曾呈奎)于1938年在“海南岛海产绿藻研究Ⅱ”中首次报道了两种绒扇藻，即直立绒扇藻Avrainvillea erecta (Berkeley) A. Gepp et E.S.Gepp和裂片绒扇藻A.lacerata J. Agardh，而后在1983年，在曾呈奎主编的《Common Seaweeds of China》一书中，报道了上述种类，并将其产地扩大到西沙群岛。1991年，陆保仁等在“南沙群岛海区的褐藻和绿藻研究I”中，第三次报道了裂片绒扇藻，将其产地扩大到南沙群岛。最近，作者在研究中国绒扇藻属的标本时，除了己经报道的两种外，又发现该属的1个新种(西沙绒扇藻Avrainvillea xishaensis Tseng， Dong et Lu sp. nov.)和3个新记录[模糊绒扇藻A.obscura (C.Agardh)J. Agardh，和氏绒扇藻A.hollenbergii Trono，群栖绒扇藻A.amadelpha (Montagne)A. Gepp et E.S. Gepp。至今共发现了6个种，其标本均存放在中国科学院海洋研究所植物标本室。 相似文献
15.
One new species of free-living marine nematodes (Enoplida,Anticomidae, Cephalanticoma) from the Huanghai Sea 总被引：1，自引：0，他引：1
One new species of free-living marine nematodes Cephalanticoma filicaudata sp. nov. from the Huanghai Sea, China is described and illustrated. Cephalanticoma filicaudata sp. nov. is characterized by well developed cephalic capsule, three teeth at the anterior of oesophagus, excretory pore opens posterior to cervical setae, only two cervical setae per file, body length longer than 5 200 μm, tail long and no ventral-lateral seta between the supplement and the cloacal opening. Types are deposited in the College of Marine Life Sciences, Ocean University of China. 相似文献
16.
In planktonic diatom samples collected from Xiamen Harbour, Xiamen,Fujian,China from January 1983 to December 1984, two species and varieties are new to science and three species are recorded for the first time in China. New species is Tropidoneis constricta Li,Cheng et Chin sp. nov. ,new variety is Fragilaria longissima v. protenta Li,Cheng et Chin var. nov. ,new recorded species are FragUaria heidenii Ostrup.F.oceanica Cleve and Thalassiosira punctigera Hasle. 相似文献
17.
中国渤海的微口线虫属(线虫动物门)一新种 总被引：3，自引：2，他引：1
描述了中国渤海自由生活海洋线虫一新种,奥氏微口线虫Tershellingia austenae sp.nov ,奥氏微口线虫与同属相近种马尔代夫微口线虫的区别特征是:体长(前者为770～950μm,后者为2370μm)、亚头刚毛的位置(前者位于化感器的两边,后者位于化感器之后)及长度(前者明显长于后者),化感器宽度与相应体直径的比例在新种中也更大一些(50～60 vs 45).提供了一个表格式检索表,以助鉴定和比较该属缺乏明显界定食道后球的一个种组.模式标本存放于英国伦敦自然历史博物馆. 相似文献
18.
中国福建省红树林湿地中自由生活海洋线虫(联体线虫科)的2个新种 总被引：2，自引：1，他引：1
本文描述了中国福建省红树林湿地中自由生活海洋线虫的2个新种。Sabatieria conicoseta sp.nov.的主要特征是：具有短的锥形体刚毛、12-15个管状的肛前附器以及长度为12-15 μm的直的引带突起。Dorylaimopsis papilla sp.nov.的主要特征是：交接器中部具有角质化带状隔膜，近端头状具一小钩，其长度为肛门所在位置体直径的1.5–1.8倍，具有长度为37-40μm的背尾指向的引带突起。泄殖孔前具16-18个微型乳突状的肛前附器。 相似文献
19.
One new species and two new records of free-living marine nematodes from the Huanghai Sea 总被引：4，自引：3，他引：1
1 IntroductionIn January 2003, undisturbed sediments were tak-en from a grid of 22 sampling stations (from 32.5° to37°N, 122° to 125°E) during the cruise of an ecologi-cal survey of the over-winter ground for anchovy inthe Huanghai Sea. Meiofaunal abundance varied from55.3 to 152.0 ind/cm2 [(95.4 ±27.0) ind/cm2], with81% to 93% [(83.1 ±22.7) ind/cm2] of the specimensbeing nematodes. Up to now, twenty-nine species ofmarine nematodes have been recorded from theHuanghai Sea (Zhang and P… 相似文献
20.
胡维兴 《中国海洋大学学报(自然科学版)》1993,(4)
本文对栖息在我国淡水鱼苗培育池及水稻田中的6种原蚌虫(隶属于甲壳门,鳃足纲,介甲目,蚌壳虫科)进行了分类记述。其中的兖州原蚌虫Eocyzicus yanzhouensis sp.nov.及拟莱阳原蚌虫E.paralaiyangensis sp.nov.系2新种。分别列表比较了新种与其近似种佩里原蚌虫E.perrieri Daday,1914,多刺原蚌虫E.spinfer Durga Prasad et al,1981及莱阳原蚌虫E.laiyangensis Hu,1985的主要形态区别特征。文中附有6种原蚌虫的检索表及形态特征图54幅。本文记述种的名录如次: 1.东方原蚌虫Eocyzicus orientalis Daday,1914; 2.蒙古原蚌虫E.mongolianus Ueno,1927; 3.戴维原蚌虫E.davidi(Simon,1886)Brtek et al,1984; 4.莱阳原蚌虫E.laiyangensis Hu,1985; 5.兖州原蚌虫,(新种)E.yanzhouensis sp.nov.; 6.拟莱阳原蚌虫,(新种)E.paralaiyangensis sp.nov. 相似文献