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1.
The discovery of new species, a study of the type material of already described species and an analysis of the literature data call for an extensive rearrangement of the Family Tethyidae, whose last revision dates from Burton (1924). The rearrangement proposed here attributes to the Family eight genera: Tethya Lam. (type genus), Burtonitethya gen nov. , Columnitis Schmidt, Halicomeies Topsent, Stellitethya gen. nov., Tectnitethya gen. nov., Tethycometes gen. nov . and Xenospongia Gray. The genus Aaptos is excluded from the Tethyidae. Three of the new genera have been established for species previously attributed to the genus Tethya and two are new: Burtonitethya gemmiformis (Burton & Rao) and Tethycometes sibogae sp. nov . Five species, previously attributed to Tethya , are considered 'incertae sedis'. An analytical key and discussion of the evolution of the family are included.  相似文献   

2.
Small gastropods from the Jurassic deposits of the European Russia, united into the lower Heterobranchia or Allogastropoda, are described. The families of Ampezzanildidae, Cimidae, Cornirostridae, Ebalidae, and Stuoraxidae are distinguished, and a set of taxa is given without reference to a definite family. The family Ampezzanildidae from the Jurassic deposits is described for the first time on the basis of the mass material, ascribed to the new genus Zizipupa gen. nov. with the sole species of Z. costata sp. nov. The family Cimidae includes the genera of Cristalloella, Rotfanella, Urlocella, and Unzhispira gen. nov. with species C. spiralocostata (Gründel, 1998), R. gerasimovi sp. nov., R. reticulata sp. nov., Urlocella undulata sp. nov., and Unzhispira minuta sp. nov. The genus Heteronatica gen. nov. is included into the family Cornirostridae. This genus is the first siphonostomatous representative of the given family including the sole long-living species H. globosa sp. nov., which is subdivided into subspecies H. globosa globosa and H. globosapromota subsp. nov. The family Ebalidae is represented by the genus Ebala, shells of which are distributed from the Middle Oxfordian to the Middle Volgian. The family Stuoraxidae is described based on two genera Stuoraxis and Aneudaronia gen. nov., including species of S. crassa sp. nov. and A. elegans sp. nov. The genus Doggerostra, which fits into different families of Heterobranchia in terms of shell morphology is represented by the species D. riedeli Gründel, 1998, which was previously known from the Bathonian and Callowian deposits in Poland and Germany, as well as form the Upper Jurassic interval in the Russian Plate. The Middle Volgian subspecies D. riedeli affinis subsp. nov. is distinguished in the composition of this species. In addition, the genus Masaevia gen. nov. with the sole species of M. sinistra sp. nov. is described. Due to so specific shell morphology of this genus, its position in the Heterobranchia system is unclear. It is not improbable that we deal with small planktonic gastropods of protoconchs of unknown group of planktonic or benthic gastropods.  相似文献   

3.
The Geonemertes problem (Nemertea)   总被引:2,自引:0,他引:2  
Janet  Moore  Ray  Gibson 《Journal of Zoology》1981,194(2):175-201
A new genus of monostiliferous hoplonemerteans, Pantinonemertes gen. nov., provides evidence for the separate evolution of terrestrial nemerteans. The genus is established for two new species found in Australia, P. enalios sp. nov., an intertidal form, and P. winsori sp. nov., which lives in fallen timber in the supralittoral brackish water regions of mangrove swamps. One only of the known species of land nemerteans, Geonemertes agricola from Bermuda, closely resembles these two species morphologically and is transferred to the new genus as Pantinonemertes agricola .
A re-examination of all the known species of Geonemertes has shown that two major groups can be distinguished on the basis of morphological characters. In one group the rhynchocoel musculature is in two distinct layers, a frontal organ is present, the mid-dorsal blood vessel has a single vascular plug, and the flame cells are binucleate and reinforced with cuticular support bars. It comprises the genus Pantinonemertes gen, nov, and the Pelaensis or Indopacific group of terrestrial nemerteans, for which the generic name Geonemertes is retained. In the second major group the rhynchocoel musculature is composed of interwoven longitudinal and circular fibres, there is no frontal organ, the mid-dorsal blood vessel bears two vascular plugs, and the flame cells are mononucleate and lack support bars. Five genera, three of which are new, are distinguished in this group. Australian species are united in the genus Argonemertes gen. nov., and New Zealand forms comprise the genus Antiponemertes gen. nov., while Acteonemertes bathamae from New Zealand and the Auckland and Ocean Islands remains in a separate genus. Geonemertes nightingaleensis is transferred to a new genus, Katechonemertes gen. nov., and for Geonemertes chalicophora a previously used generic name, Leptonemertes , is adopted.
A key to the terrestrial, brackish-water and marine nemertean species described in the present paper is provided.  相似文献   

4.
5.
Seven new species of Paramunnidae from the Magellan Strait are described, two of which are placed in new genera: Paramunna magellanensis sp. nov., P. menziesi sp. nov., P. parasimplex sp. nov., P. patagoniensis sp. nov., Allorostrata ovalis gen. et sp. nov., Austrosignum dentatum sp. nov., and Magellianira serrata gen. et. sp. nov. Four known paramunnid species from the same location are redescribed: Parammunna integra, P. simplex, P. subtriangulata and Munnogonium tillerae . While investigating the genus Paramunna , two species of this group, Acutomunna foliacea (Chardy, 1975) gen. nov. and Paramunna foresti Carvacho , 1977 were removed, which involved the erection of a new genus. The allocation of P. foresti remains uncertain. Some diagnostic characters of the Paramunnidae and a key to the Magellanic species of Paramunna are presented.  相似文献   

6.
A new genus Amblomma gen. nov. of fossil beetles is erected and can be assignedto the family Ommatidae because its two procoxal cavities are contiguous and the articulations of the abdominal ventrites are abutting. The new genus is similar to Zygadenia Handlirsch, 1906 (=Notocupes Ponomarenko, 1964), Tetraphalerus Waterhouse, 1901,Rhobdocupes Ponomarenko, 1966 and Sinocupes Lin, 1976, but can be distinguished from other genera according to the following characters: the second segment of antennae is shorterthan the third one in length; the posterior tarsi with the basal segment is obviously shorter than the three following taken together in length; the antennae reach the posterior ridge of prothroax in length, and the sides of the prothroax with serrulate margin. Four new species of the new genus are described and figured: Amblomma psilata gen. et sp. nov., Amblomma rudis gen. et sp. nov., Amblomma epicharis gen. et sp. nov., and Amblomma stabilis gen. etsp. nov. A key to species within this new genus is provided. All the specimens are collected from the Late Jurassic Yixian Formation of western Liaoning and are now housed in the College of Life Science, Capital Normal University, Beijing, China.  相似文献   

7.
作为一种重要的食源性致病菌,阪崎肠杆菌因能引起新生婴幼儿脑膜炎、坏死性小肠结肠炎而受到了政府和社会的高度重视。2008年,阪崎肠杆菌被提议重新另立为隶属于肠杆菌科的一个包含有5个新种的新属——Cronobacter gen.Nov.。新属的五个种之间毒力作用存在差异,外膜蛋白A在黏附和抗吞噬过程中发挥了重要作用,同时本属菌株的侵入力在宿主细胞间的紧密联系被破坏时显著提高,但是一些肠道益生菌能抑制该菌侵入。目前阪崎肠杆菌的致病研究还比较分散,没有形成系统性,详细的致病机制期待进一步阐明。  相似文献   

8.
9.
In this paper, five new pollen genera and twenty new pollen species of angiospermae from the Late Cretaceous of a certain basin in central China are described. Four new organ genera and their species include: Morinoipollenites normalis gen. et sp. nov., Morinoipollenites minor gen. et sp. nov., Morinoipollenites polyprojectus gen. et sp. nov., Morinoipollenites rhombiformis gen. et sp. nov., Jianghanpollis ringens gen. et sp. nov., Jianghanpollis, mikros gen. et sp. nov., Jianghanpollis radiatus gen. et sp. nov., Jianghanpollis sayangensis gen. et sp. nov., Jianghanpollis arciformis gen. et sp. nov., Myoporumpollonites variabilis gen. et sp. nov., Myoporumpollenites striatus gen. et sp. nov., Lythraites giganteus Yu, Guo et Mao gen. et sp. nov. Lythraites clavatus sp. nov., Lythraites dilutus sp. nov., Lythraites magnus sp. nov., Lythraites varrustriatus sp. nov., Lythraites pachyrrhachis sp. nov.; the new-form genus and its species are: Crassimarginpollenites reticulatus gen. et sp. nov., Crassimerginpollenites mirus gen. et sp. nov., Crassimarginpollenites psilatus gen. et sp. nov. The new pollen genera and their species described herein have been compared in some details with recent pollens and considered their affinity with such recent families as Dipsacaceae, Myoporaceae, Apocynaceae and Lythraceae. According to the age of the pollen-bearing strata, a preliminary discussion is made regarding to the taxonomy of the recent plants families with which our new described pollens are related. Hence, this study may provide some mieropalaeobotanical information for deciphering 'the phylogeny of these plants.  相似文献   

10.
16S rRNA gene sequencing was performed on the species Lactobacillus minutus, Lactobacillus rimae and Streptococcus parvulus in order to clarify their taxonomic position. Based on comparative sequence analyses these organisms represent a hitherto unknown line of descent within the lactic acid group of bacteria for which a new genus, Atopobium gen. nov., is proposed.  相似文献   

11.
A new genus, Asiaontsira gen. nov., and two new species, A. cucphuongi sp. nov. (type species) and A. cantonica sp. nov., are described from tropical and subtropical areas of South‐East China and North Vietnam. This genus is compared to the closely related Australian Ontsirospathius Belokobylskij, Iqbal and Austin, 2004 as well as the similar and almost cosmopolitan genus Ontsira Cameron, 1900. A key to both species of Asiaontsira gen. nov. is provided.  相似文献   

12.
The roaker species (Sciaenidae) Sciaena impropria Gabelaia, 1976 from the Lower Pliocene (?) of Abkhazia is assigned to a new genus, Carnevalella gen. nov. This genus essentially differs from other sciaenid fishes in the greater number of supraneurals and vertebrae, the posterior shift of the dorsal fin origin, and the fusion of the fourth hypural with the terminal centrum. An incomplete roaker skeleton found in the Upper Maeotian (Upper Miocene) of the Taman Peninsula (Krasnodar Region) is assigned to the same genus. The Maeotian roaker is described as a new species, C. (?) tmutarakanica sp. nov. Morphological peculiarity of the genus Carnevalella gen. nov. justifies its allocation to a new subfamily, Carnevalellinae subfam. nov.  相似文献   

13.
描述蚊蝎蛉科1新属和3新种:新属Decoribittacus gen.nov.,新种美脉华美蚊蝎蛉Decoribittacus euneurus sp.nov.,斑点华美蚊蝎蛉Decoribittacus stictus sp.nov.和长翼卡拉蚊蝎蛉Karattacus longia latus sp.nov..同时修订了卡拉蚊蝎蛉属Karattaus的属征.所有的化石标本都来自内蒙古宁城县道虎沟中侏罗世九龙山组地层,模式标本现在保存于首都师范大学生命科学学院.  相似文献   

14.
东亚地区三节叶蜂科已经记载10属约80种,本文是中国三节叶蜂科系统分类研究之一,报道扁胫叶蜂亚科一新属:刺背叶蜂属Spinarge,gen.nov.以四川刺背叶蜂Spinargesichuanensis,sp.nov.为模式种,另外还包括刘氏刺背叶蜂Spinargeliui,sp.nov.。新种的模式标本保存于中南林学院环境与资源系昆虫标本室。新属与中华三节叶蜂属SinargeForsius和似三节叶蜂属CibdelaKonow近似,但新属中足胫节具亚端距,雄虫腹部第5背板具性沟和长突,与此二属以及扁胫叶蜂亚科已知各属均不同;此外,新属的胫节端距尖锐,后翅近基部无Cu-a脉,锯鞘背面具洼区,体金属兰色等与中华三节叶蜂属不同;雌虫触角仅等长于头宽,末端最宽,复眼小,内缘直,间距宽于眼高,后头膨大,前翅R+M脉短于Sc脉等不同于似三节叶蜂属。此新属所包括的2新种的区别参见检索表。  相似文献   

15.
Paleontological Journal - A new monotypic genus, Olibrolitus gen. nov. (type species Olibrolituskatyae sp. nov.), is described from Upper Eocene amber. The new genus Olibrolitus does not resemble...  相似文献   

16.
本文记述中国潜叶蜂族Fenusini6属8种,其中包括2新属6新种及4新组合种:大眼郑潜叶蜂Zhenginamegommagen.etsp.nov,吕氏华潜叶蜂Sinofeunsaluigen.etsp.nov,黑鳞丝潜叶蜂Messanigrotegulasp.nov,痕缝脊潜叶蜂Parnavestigialissp.nov,沟缝脊潜叶蜂Parnadistinctasp.nov,黄首原潜叶蜂Profenusaxanthocephalasp.nov.;槭树雅潜叶蜂Anafsnusaacericola(Xiao1992)comb.nov。恢复臀潜叶蜂属AfusaMalaise,将ParafenusaZhelochovtsev(1976)降为AfusaMalaise1964的次异名,原Paarafenusa属下的种类移入Afusa属,建立3个新组合:Afusapruni(Zhelochovtsev1976)comb.nov,Afusacerasi(Zhelochovtsev1976)comb.nov,Afusamaharibiana(Zhelochovtsev1976)comb.nov。新属新种附有主要形态特征图。文中还编制了潜叶蜂族的已知底检索表和Profenusa,Anafeausa,Parna属的已知种检索表。雅潜叶蜂属Anafenusa和脊潜叶蜂属Parna为中国新纪录属。迄今,潜叶蜂族已知24属约60种;中国已记述12属22种。  相似文献   

17.
A new genus ( Protosciadopityoxylon gen nov. ) of Early Cretaceous fossil wood reported in the present paper was discovered from Liaoning Province, China, and is named as a new species:Protosciadopityoxylon liaoningense gen. et sp. nov. It is described here and this generic name, adopted by the authors, is employed for fossil wood that is believed to be nearly related to the recent genus Sciadopitys and the fossil genus Sciadopityoxylon. The new genus bears some similarities to Protophyllocladoxylon,Protocircoporoxylon and Xenoxylon in different geological ages, but it differs from them in the types of cross-field pitting.  相似文献   

18.
本文描述蝎龄化石1新属4新种。新属Megabittacus2新种,即Megabittacuscolosseussp.nov.,Megabittacusbeipiaoensissp.nov,新种Sibirobittacusatalussp.nov.属于现生的蚊蝎蛉科,新种Orthophlebialiaoningensissp.nov.属于绝灭的直脉蝎蛉科。化石采于辽宁省北票市晚侏罗世义县组地层中。这些新的化石属种,其虫体特征包括触角、喙、足和翅脉特征均完整的保存。模式标本保存在中国地质博物馆。  相似文献   

19.
印象初  郑方强  印展 《昆虫学报》2014,57(9):1075-1083
记述了采自中国台湾斑腿蝗科秃蝗亚科1新属台秃蝗属Taipoodisma gen. nov. 和4新种:红股台秃蝗Taipodisma rufifemora sp. nov., 谢氏台秃蝗Taipodisma hsiehi sp. nov., 周氏台秃蝗Taipodisma chowi sp. nov., 黑胫台秃蝗Taipodisma nigritibia sp. nov.。新属台秃蝗属Taipoodisma gen. nov.同蹦蝗属Sinopodisma Chang, 1940近似,不同之处为前胸背板后缘中央缺凹口,中隆线在沟前区不显,在沟后区留有痕迹。新属同辽秃蝗属Liaopodisma Zheng, 1990也近似,不同之处为雄性后胸腹板两侧叶分开,不毗连。新种红股台秃蝗T. rufifemora sp. nov. 后足股节内侧和下方红色可与同属其他种相区别。新种谢氏台秃蝗T. hsiehi sp. nov. 缺黑色眼后带可与同属其他种相区别。新种周氏台秃蝗T. chowi sp. nov. 同红股台秃蝗T. rufifemora sp. nov.近似,不同之处为后足股节内侧和下方非红色。新种黑胫台秃蝗T. nigritibia sp. nov. 同周氏台秃蝗T. chowi sp. nov.近似,不同之处为前胸背板沿中隆线缺黑色纵带和前翅黄褐色,缺黑色带纹。列出了该属的种检索表。  相似文献   

20.
A new genus, Rovnocapnia gen. nov., with new species R. atra sp. nov. and R. ambita sp. nov., from the family Capniidae, and a new genus and species Palaeoleuctra acuta gen. sp. nov., from the family Leuctridae, of the suborder Nemourina (Euholognatha), are described from Late Eocene Rovno amber. Familial assignment of one additional specimen (suborder Perlina, infraorder Perlomorpha (Systelognatha)), represented by a nymphal skin, is obscure due to its incomplete preservation.  相似文献   

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