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1.
A new monstrilloid copepod species,Cymbasoma cheni sp.nov.,from Meizhou Bay(an embayment in Fujian Province,southeastern China)is described and illustrated.The diagnostic character of the new species is the structure and armature of the fifth leg,which is represented by a single lobe armed with three naked setae subequal in length.The new species closely resembles Cymbasoma bowmani SuarezMorales and Gasca,1998 in the structure of the fifth legs,and the body proportions,including total body length,and relative lengths of the cephalothorax and the genital double somite.However,Cymbasoma cheni sp.nov.is distinguished by lack of cuticular ornamentation on the cephalothorax,the position of the oral papilla,and the structure of the fifth leg with three naked setae.Although the structure of the fifth legs is similar in Cymbasoma cheni sp.nov.and Cymbasoma quintanarooense(Suarez-Morales,1994),the new species can be easily distinguished from Cymbasoma quintanarooense by the relative length of the antennule,differences in the genital double-somite and the ovigerous spines,and the shape of ocelli.This is the sixth record of this genus from China seas. 相似文献
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《中国海洋湖沼学报》2021,(5)
The genus Munidopsis has high biodiversity in seamount habitats.In this study,two new Munidopsis species,Munidopsis ahyongi sp.nov.and Munidopsis carolinensis sp.nov.from the Caroline Ridge in the tropical western Pacific Ocean were described.M.ahyongi sp.nov.is very similar to a group of species in the M.serricornis complex,but can be readily distinguished from the related species in having the oblique posterior orbital margins,2 spines on the lateral carapace margin,and a relatively longer rostral median spine.M.carolinensis sp.nov.is different from two related species primarily in having oblique frontal margins,blunt outer orbital angles,straight lateral margins of the rostrum,scale-like rugae on sternites 5-7,and less spinose pereopod 1(chelipeds,P1) merus and carpus.Aside from the morphological comparisons,DNA barcode analysis and phylogenetic analysis based on the cytochrome c oxidase subunit I gene(COI) were employed for the identification of these new species. 相似文献
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FIVE RED TIDE SPECIES IN GENUS PROROCENTRUM INCLUDING THE DESCRIPTION OF PROROCENTRUM DONGHAIENSE LU SP. NOV. FROM THE EAST CHINA SEA 总被引：22，自引：0，他引：22
A new planktonic dinoflagellate, Prorocentrum donghaiense I_a sp. nov., is described in the present paper. The water sample was collected from the Changjiang Estuary, the East China Sea. The species identification is based on shape, size, surface micro-morphology, ornamentation of thecal plates and the architecture of the pel‘iflagellar area and the intercalary bands as seen by fight and scanning electron microscope. Prorocentrum donghaiense Lu sp. nov. is compared with other prorocentrum species with respect to morphological characteristics and bloom behavior. It is not known whether Prorocentrum donghaiense Lu sp. nov produces phycotoxins like some other Prorocentrum species. Four other red tide species in the family Prorocentraceae (Dinophyceae), namely P. balticum, P. minimum, P.micans, P. triestinum, were examined and identified by light and scanning electron microscope. They have been recorded as bloom-forming species. Some aggregates of Prorocentrum are observed at the end of blooms. An event of strong discoloration caused by P. donghaiense could be detected by satellite sensor in the East China Sea in the late spring, of 1995. 相似文献
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DING Qiuhong FU Xiaoping LI Yong ZHANG Wu . Shengyang Center of Geological Survey China Geological Survy Bureau Shenyang China . Shenzhen Fairy Lake Botanical Garden Shenzhen Guangdong 《东北亚地学研究》2011,(2)
Three new species of fossil woods are reported from the Upper Jurassic to Lower Cretaceous in southeastern Mongolia,including Protaxodioxylon mongolense sp. nov. Circoporoxylon mongolense sp. nov. Protocircoporoxylon mongolense sp. nov. The anatomical characters of three new species are described in detail. 相似文献
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Three new species of fossil woods are reported from the Upper Jurassic to Lower Cretaceous in southeastern Mongolia,including Protaxodioxylon mongolense sp. nov. Circoporoxylon mongolense sp. nov. Protocircoporoxylon mongolense sp. nov. The anatomical characters of three new species are described in detail. 相似文献
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山东莱阳盆地的昆虫化石最早为A.W.Grabau(1923)和C.Ping(1928)所描述,计6属8种。最近,洪友崇(1984)又描述了3属3种。这样,共计发表了9属11种。实际上,这个地区的昆虫化石极为丰富。本文所描述的6目12科16属19种只是最新采集的昆虫化石的一部分,其中有11新属13新种,4已知属新种和2已知种。张生、刘德正和上官义宁等同志帮助采集了标本;中国科学院南京地质古生物研究所胡 相似文献
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1 INTRODUCTION The first published records of genus Batra-chospermum Roth in China are from Jao (1941), when eleven taxa were reported. Since then, Shi, Hu and Kumano (1993), Shi (1994a, 1994b), Hua and Shi (1996), Xie et al. (1999, 2003), Xie and Shi (2003) have described in more detail the species from China. To date, 23 taxa of Batrachospermum Roth in China have been reported, of which, B. yunnanense, B. nothocladoideum and B. transito-rium are new species of this genus, and are… 相似文献
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A new species of free-living marine nematode is described from intertidal sediment of the East China Sea.The new species belongs to the Oncholaimidae family.Oncholaimus zhangi sp.nov.is characterized by males having a large ventral swelling situated just posterior to the middle of the tail,no precloacal papilla,and a row of 6–7 ventral genital setae.The tails of both males and females are similar,being conico-cylindrical in shape.The new species is distinguished from other closely related species by the presence of a prominent ventral swelling at the tail of males and a similar tail shape in both sexes.About 110valid species in this genus have been recorded to date. 相似文献
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Serge V.Naugolnykh 《世界地质(英文版)》2017,(1)
The paper deals with the Lower Kungurian( Philippovian Horizon; Lower Permian) biota of the Middle Cis-Urals,Russia.The biota is characterized on the basis of four representative localities( Philippovskoe Bus-stop,Philippovskian Quarry,Kamai and Kiselevo-Suksun Highway),which are situated in the stratotype area of the Kungurian stage.All the localities can be regarded as Lagersttten,but of authentically low biodiversity,since they represent oligotrophic lagoons of abnormal fluctuating salinity.General reconstruction of the Philippovian near-shore shallow-water ecosystem is given.Two new species of algae Algites philippoviensis sp.nov.,A.shurtanensis sp.nov.,and a new species of the limulids Paleolimulus kunguricus sp.nov.are described for the first time. 相似文献
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文中记述了淄博市淄川区峨庄镇东峪东村和莒县洛河镇小汇泉地区下奥陶统纸坊庄组纸一段的头足类化石11属、15种,其中新属3个、新种6个和两个未定种,属于两个目、3个科,并据此建立了Barnesoceras—Dakeoceras带。此头足类动物群先后在美国加拿大统加斯科纳(Gasconadian)组,我国河北涞水和内蒙古清水河等地下奥陶统冶里组有报道,应视为同时期产物。 相似文献
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辽宁地区木化石丰富,现已发现早侏罗世松柏类硅化木材 5属 8种,其中包括 2个新种, 2个修订种, 3个已知种及 1个未定种,即： Protophyllocladoxylon chaoyangense Zhang et Zheng sp. nov.,P. franconicum Vogellehner, Protosciadopityoxylon liaoxiense Zhang et Zheng sp. nov., P. jeholense (Ogura) Zhang et Zheng comb. nov., Sciadopityoxylon heizyoense(Shimakura) Zhang et Zheng comb. nov., Protocedroxylon dibneri (Shilkina) Shilkina et Chudajb., Xenoxylon latiporosum Gothan, X.? sp.。本文对新种作了描述,对前人鉴定有误的属种进行了修订,并概述了 5个产地木材化石组合特征及其古气候环境。 相似文献
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《中国海洋湖沼学报》2021,(5)
A new species of Macandrewia Gray from a seamount near Yap Trench in the Western Pacific Ocean was described.Macandrewia yapensis sp.nov.is distinct from its congeners by possessing a foliate shape with contorted lamellae,tuberculiform terminations of desmas,and unique size of spicules.This is the third species of Macandrewia described from the Pacific Ocean.In addition a partial sequence of COI gene was obtained from the new specimen and then it submitted to GenBank.Phylogenetic tree constructed with the partial COI sequences appears to exhibit a more congruent relationship with morphological data of macandrewiid species compared to 28 S gene tree. 相似文献
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Three new species of Family Mitridae （Mollusca： Gastropoda） from the South China Sea are described in the present paper. They are Ziba aglais sp. nov. B. LI ＆ S. ZHANG, Neocancilla daidaleosa sp.nov. B. LI ＆ X. LI, and Mitra holkosa sp. nov. B. LI. Their systematic positions are also discussed. 相似文献
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张素萍 《中国海洋湖沼学报》2013,31(2):431-434
This paper describes a new species of Nassarius from the South China Sea,which was recognized when re-sorting the collection of Nassariidae in the Marine Biological Museum,Chinese Academy of Sciences,Qingdao,China.The shells were collected during several investigations,including the National Comprehensive Oceanic Survey in 1958-1959,and the China-Vietnam Co-Investigation on Marine Resource of the Beibu Gulf during 1959-1962.The morphology of the shell and the radula places the new species of Nassarius within the subgenus Zeuxis.It is named Nassarius(Zeuxis) nanhaiensis sp.nov. 相似文献
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We describe two new species of Sellaphora from Lake Fuxian, Yunnan Plateau, China. Based on both light and scanning electron microscopy, these species are described
as S. yunnanensis sp. nov. and S. sinensis sp. nov. The primary features of S. yunnanensis are: elliptical to linear-elliptical valves with broadly rounded ends, straight filiform raphe, almost straight central endings
and small, slightly expanding central pores, small central area, symmetrical or slightly asymmetrical central nodule. The
primary features of S. sinensis are: elliptical valves, obtusely rounded ends, similar raphe and axial area, transapically less expanded central area, larger,
elliptical central nodule. We compare these species to those of a similar shape and morphology. 相似文献
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Pavlova viridis sp. nov. is described on the basis of light and electron microscope observations. The material was collected from the coast of Haiyang county of Shandong, China. It is characterized by 1) yellowish green to green chloroplast, 2) rudimentary short flagellum 0. 3um long and hook-shaped, 3)long flagellum with small spherical knob-scales, 4) absence of pyrenoid and stigma, and 5) marine habitat. This new species and P . salina seem to be most closely related to each other but their colour, the insertion of their three appendages, the shape of their knob scales, and their cell periplasts are quite different from one another . 相似文献
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《中国海洋湖沼学报》2021,(5)
During an expedition to a seamount at Caroline Plate in the tropical Western Pacific,a new species of Tritonia was sampled from the upper bathyal zone at depth of 970-1 262 m.This new species,Tritonia iocasica sp.nov.,represents the first tritoniid nudibranch known to feed on octocoral of the family Melithaeidae.The species is up to 120 mm in length,pinkish in color;with the rhinophoral sheath divided into several petaliform extensions;veil with,about 18 elongate digitiform processes;notal margin with17-19 pairs of secondary gills;anus located below the 5~(th) and 6~(th) secondary gills,and the genitalia below the 3~(rd) secondary gill on the right side of the body.Based on these external features,T.iocasica sp.nov.can be dearly distinguished from all previously described members of the genus.Phylogenetic analyses of two mitochondrial(COI,16 S rRNA) and a nuclear(H3) genes using Bayesian inference,maximum likelihood,and species delimitation analysis also support the separation of T.iocasica sp.nov.from its congeners. 相似文献