Laetmonice iocasica sp.nov.,a new polychaete species(Annelida:Aphroditidae) from seamounts in the tropical Western Pacific,with remarks on L.producta Grube,1877

Laetmonice Kinberg,1856 is a remarkable genus characterized by having harpoon notochaetae in the polychaete family Aphroditidae.We describe a new species of Laetmonice,Laetmonice iocasica sp.nov.,found from seamounts on the Caroline Ridge in the tropical Western Pacific.The new species is readily distinguished from congeners,particularly those distributed in the Indo-Pacific Ocean by possessing45 segments with 18 pairs of elytra,and the tuberculated harpoon notochaetae in the elytrigerous segments,which are replaced by tuberculated notochaetae without recurved fangs on segments 4 and 5.Laetmonice iocasica sp.nov.is closely related to L.producta Grube,1877,but differs in both morphology and the genetic distance of the mitochondrial cytochrome oxidase subunit I(COI) sequences.Laetmonice producta Grube,1877 contained five varieties reported in various marine areas,which have been raised to species level.However,the records of L.producta from the Sagami B ay and Suruga B ay in Japan and in the south-eastern Australia remain obscure and probably represent a different species.The data indicate that L.producta,which was originally described from Kerguelen Islands in the Southern Ocean and later commonly found on the Antarctic shelf,is probably distributed only at high latitudes of the Southern Hemisphere.     

A new species of Lataxiena Jousseaume, 1883 (Gastropoda: Muricidae) from the East and South China Seas

A new muricid gastropod species,L ataxiena lutescena sp. nov.,is described and illustrated. The new species was recognized during reidentification of the Muricidae collection in the Marine Biological Museum,Chinese Academy of Sciences,Qingdao. The specimens of the new species were collected from the East and South China Seas off Fujian,Guangdong,and Hainan Provinces. Lataxiena lutescena sp. nov. is similar to Lataxiena blosvillei(Deshayes,1832) in general shape,but can be distinguished from the latter by the shell sculpture and radular characteristics. Lataxiena lutescena sp. nov. also resembles Lataxiena bombayana(Melvill,1893),but differs from that species in the shell shape and anal notches and in lacking short spines on the shell.     

中生代昆虫化石新资料

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     

A Taxonomic Study of the Genus Tinocladia （Chordariales,Phaeophyta） in China Coasts I. Two new species, T. eudesmoides sp.nov, and T. zhangii sp.nov.

Two new species of the genusTinocladia Kylin (1940)T. eudesmoides Ding et Lu sp. nov. andTinocladia zhangii Ding et Lu sp. nov., are described.T. eudesmoides is mainly characterized by its longitudinally and transversely produced sub-cortical filaments from the medulla, its short uniseriate assimilating filaments, usually composed of 6–10 cells with slightly swollen and narrow ultimate cells, and its unilocular sporangia (60–115)×55–70μm, variable in size.T. zhangii is mainly characterized by its very solid frond, not rip apart by hands, its evident longer primary branches, its short and slender secondary branches, with very evident sub-cortical layer, and filaments divided repeatedly, and its large and small unilocular sporangia, with the latter borne on an evidently swollen pedicel. Project B80981816 supported by the NSFC. Contribution No. 4443 from the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.     

Two new species of the genus Munidopsis Whiteaves,1874(Crustacea:Anomura:Munidopsidae) from the Caroline Ridge,South of the Mariana Trench

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.     

Morphology and molecular phylogeny of three black corals(Antipatharia,Schizopathidae) from seamounts in the Western Pacific Ocean,with description of a new species

Three deep-sea black corals belonging to the family Schizopathidae,are reported from two seamounts on the Caroline Ridge in the tropical Western Pacific:Umbellapathes parva sp.nov.with depth of 1 488-1 766 m,Telopathes cf.magna MacIsaac Best,2013 with depth of 937-1 016 m,and Stauropathes cf.punctata(Roule,1905) with depth of 942-1 353 m.The latter two species are the first records in the Western Pacific Ocean.U.parva sp.nov.is characterized by monopodial corallum,relatively long unpinnulated stalk with complex pinnulated branche s developing from the lowermost primary pinnules and small spine s.It differs from two known congeners by much smaller spine s and the present of secondary pinnules.T.cf.magna MacIsaac Best,2013 has sparsely branched corallum,relatively long and simple pinnules arranged in subopposite or alternate pairs.S.cf.punctata(Roule,1905) is characterized by the corallum with almost planar pinnulated branches,and pinnules arranged in subopposite pairs.Our results indicate that the corallum size and shape are variable in conspecific specimens particularly those at different growth stages.By contrast,the size of the polypar spines as well as the abpolypar spines have little variation and can be served as a main differing feature for schizopathid species.The phylogenetic analyses using nuclear internal transcribed spacer region(spanning partial 18 S rDNA,ITS 1,5.8 S,ITS2,and partial 28 S rDNA) and two mitochondrial fragments cox3-IGR-coxl(COI) and trnW-IGR-nad2(NAD2) showed Telopathes,Stau ropathes,and Bathypathes had close relationships,and Umbellapathes formed a sister clade with Alternatipathes.     

鲁中地区早奥陶世早期的头足类

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。     

Muelleria pseudogibbula,a new species from a newly recorded genus (Bacillariophyceae) in China

The genus Muelleria is reported for the first time from China in this paper. The new diatom species M uelleria pseudogibbula sp. nov. was observed during a survey of diatoms from Zoigê Wetland, Sichuan Province, China. The morphological characters of this new species were documented by light and scanning electron microscope and compared with similar species. M. pseudogibbula is characterized by its lanceolate to linear-lanceolate valve outline with rounded apices, two longitudinal canals running parallel to each side of the raphe, proximal ends of the raphe deflected to the same directions and finishing before the first row of areolae, and curved distal raphe ends, forming two divergent branches.     

Descriptions of three new species of Mitridae （Mollusca： Gastropoda） from South China Sea

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.     

<Emphasis Type="Italic">Pseudolella major</Emphasis> sp. nov. (Axonolaimidae,Nematoda) from the intertidal zone of the East China Sea

A new species of free-living nematode, Pseudolella major sp. nov. is described from the intertidal mudflats of Ximen Island in the East China Sea. Pseudolella major sp. nov. is characterized as follows: body length ~1 300 μm; short cephalic setae, 2–3 μm long; amphidial fovea loop-shaped with elongated ventral branch; ventral branch 50–60 μm long and extending past the base of buccal cavity; buccal cavity cylindrical with arching or spherical base; three heavy outwardly-curving odontia with blunt tips located at anterior of buccal cavity; pharynx short with posterior bulb; ventral gland cell elongate oval-shaped, located posterior to pharyngo-intestinal junction; excretory pore situated at the level of the middle of buccal cavity; tail conical to cylindrical; spicules arched, with double-cephalate proximal end; gubernaculum with a strong dorsal caudal apophysis.     

New speices of Late Mesozoic wood fossils from southeastern Mongolia

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.     

Lower Kungurian shallow-water lagoon biota of Middle Cis-Urals,Russia:towards paleoecological reconstruction

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 Lagersttten,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.     

New speices of Late Mesozoic wood fossils from southeastern Mongolia

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.     

辽宁早侏罗世化石木材

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。     

A new species of Cymbasoma Thompson, 1888(Copepoda: Monstrilloida) from the Fujian coast,China

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.     

Tsengiella,a new genus of delesseriaceae—(Rhodophyta) from China

A medium-sized delesseriaceous red alga has been collected from the subtidal area of the northern Huanghai Sea coast. The characteristics of the specimens precludes their being placed in any genus defined by the currently accepted criteria.Tsengiella gen. nov., withT. spinosa sp. nov., as the type and only known species, is created and allied with theHypoglossum group of the Delesserioideae (Delesseriaceae, Ceramiales, Rhodophyta). Contribution No. 1286 Academia Sinica Institute of Oceanology, Qingdao.     

Eualus heterodactylus sp. nov., a new hippolytid shrimp from Chinese coast of the Yellow Sea （Crustacea,Decapoda, Caridea）

A new species from the caridean family Hippolytidae, Eualus heterodactylus sp. nov. is described and illustrated based on the specimens collected from Chinese coast of the Yellow Sea. The new species is a part of an informal species group characterized by the possession of epipods on the anterior three pairs of pereopods, and is distinguished from other species of this group by the dactyli of the third to fifth pereopods possessing distinctly stair-like flexor margins in males.