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1.
80年代初期,我们在云南采到5号标本,解剖观察认是甘蔗亚族(Saccharinae)植物。再进一步查对,要把它放入这个亚族中的任何一属均觉不妥,故另立新属与新种,本新属与芒属(Miscanthus)似有亲缘关系。  相似文献   

2.
贵州台江八郎下,中寒武统界线及三叶虫动物群   总被引:17,自引:0,他引:17  
详细记述了贵州台江八郎下、中寒武统界线剖面及所含三叶虫动物群,提出了在过渡区划分下、中寒武统界线新定义:即从三叶虫Lancastria向Oryctocephalus(或Oryctocephalina)的连续演化系列中,以Oryctocephalus(或Oryctocephalina)的首次出现作为中寒武纪的开始。在描述的28属(亚属)36种(未定种)三叶虫中,共有7新属(亚属)17新种。  相似文献   

3.
贵州代化西部大标关纳缪尔晚期三叶虫   总被引:1,自引:0,他引:1  
袁金良 《古生物学报》1996,35(5):575-590
记述贵州代化西部大标关纳缪尔晚期地层(滑石板组)中的砑头虫科、短额虫科和菲利普虫科三叶虫5属(亚属)、4种和2未定种,其中有1新亚属:Microphillipsia,3新种(新亚种):Microphillipsia cylindrica,Neogriffithides daihuaensis和Weania librovitchi qiannanensis。  相似文献   

4.
本文提议将蕨盲蝽属Bryocoris Fallen分为两个亚属:蕨盲蝽亚属subg.Bryocoris Fallen和锥喙蕨盲昃亚属subg、Cobalorrhynchus Reuter(stat.nov.)。文中记载此属的中国种类共13种,包括8个新种:卜氏蕨盲蝽B.bui sp.nov.(正模♂,云南绿春),凹北蕨盲蝽B.concavus sp.nov.(正模♂,云南云龙),李氏蕨盲蝽B.li  相似文献   

5.
中国小毛瓢虫二新种记述(鞘翅目:瓢虫科)   总被引:1,自引:0,他引:1  
任顺祥  庞雄飞 《昆虫学报》1995,38(4):467-470
中国小毛瓢虫二新种记述(鞘翅目:瓢虫科)任顺祥,庞雄飞(华南农业大学昆虫生态室广州510642)本文描述采自贵州和四川的小毛瓢虫属ScymnusKugelann小毛瓢虫亚属Scymnus(Scymnus)Kugelann二新种。模式标本保存于华南农业...  相似文献   

6.
本文记述分布于甘肃省的丽盲蝽属新丽盲蝽亚属(subg.Nedygus)二新种,修长丽盲蝽Lygocoris(Neolyugs)elongatulusp.nov.和甘肃丽盲蝽Lygocoris(neolygus)gansuensissp.nov模式标本均存放南开大学生物系。  相似文献   

7.
四药门花属及其近缘植物ITS区序列分析和系统学意义   总被引:8,自引:0,他引:8  
测定和分析了四药门花等13种金缕梅科(Hamamelidaceae)植物的核糖体DNA转录间隔区(ITS区)及58S编码区的序列。应用最大简约法构建的分子系统树表明:被分析的金缕梅亚科(Hamamelidoideae)植物形成一个单系类群,亚科内及其中的金缕梅族(Hamamelideae)内部呈复系演化(polyphyletic)的特征;支持秀柱花族(Eustigmateae)(含秀柱花属Eustigma、牛鼻栓属Fortunearia和山白树属Sinowilsonia)成立以及将蚊母树族(Distylieae)与弗特吉族(Fothergileae)合并的观点,此结果与Endres(1989)系统接近;金缕梅族中金缕梅属(Hamamelis)与弗特吉族中的弗特吉属(Forthergila)、银缕梅属(Shaniodendron)和水丝梨属(Sycopsis)系统发育关系密切;四药门花属(Tetrathyrium)与木属(Loropetalum)属于同一个单系类群,它们与Hamamelis的亲缘关系较远  相似文献   

8.
缘蝽科的比较形态学研究Ⅰ(异翅亚目:缘蝽总科)   总被引:1,自引:0,他引:1  
本研究叙述了缘蝽科的基本特征以及缘蝽科中22个族或亚科级单元的比较形态学特征,特别是外生殖器的特征描述及其图解多为首次报道。认为瘤缘蝽族、喙缘蝽族、竹缘蝽族、沟缘蝽亚科、达缘蝽族、同缘蝽族、特缘蝽族及美洲各族(或亚科)为单系群;梭缘蝽族(包括唯一属梭缘蝽属)的族级地位成立;缘蝽族各属关系复杂;黛缘蝽族是一个复系类群,各属关系复杂,在头部、阳茎和雄虫生殖腔等方面的构造已呈明显差异,此族似不成立;岗缘蝽族应是一单系群,但Plinachtusbasalis似应独立成属并移出岗缘蝽族;曼缘蝽族、昧缘蝽族及鼻缘蝽族[仅1属1种,该属另外1种SinotngusrubromaculusHsiao被移到类缘蝽属中,即Anacanthocorisrubromaculus(Hsiao)(n.comb,新组合)为单属族,它们的系统学地位有待进一步研究;希缘蝽族(或亚科)身体构造很特异,是较原始的缘蝽类群;棒缘蝽亚科亦为较原始的类群,其中棒缘蝽属群各属组成一单系群,证明Stal(1873)将它们成立棒缘蝽族合理;其余棒缘蝽亚科各属虽在某些外部形态上表现出一定的亲缘关系,但属间特征交叉,且与棒缘蝽族有许多共同特征,若归为一族,则造成  相似文献   

9.
以小麦族赖草属植物的6个种:赖草(Leymussecalinus)、窄颖赖草(L.angustus)、单小穗赖草(L.aemulans)、多枝赖草(L.multicaulis)、大赖草(L.racemosus)和天山赖草(L.tianshanicus)作试验材料,分别组配成5个种间杂交组合,并与新麦草属(Psathyrostachys)、鹅观草属(Roegneria)以及Thinopyrum属组配成9个属间杂交组合。应用胚胎培养技术,离体培养杂种胚胎,成功地拯救了赖草植物的种间和属间杂种。试验结果表明,杂种胚胎的胚龄、培养基的营养组成以及杂种基因型对离体胚胎的培养有明显影响。  相似文献   

10.
本文建立了膜翅目叶蜂科1新亚科:巨基叶蜂亚科Megabelesesinae subfam.nov.,该亚包括2个族:巨基叶蜂族Megabelesesinin trib.mov.和枝膜叶蜂族Cladiuchini Benson,同时描述了2新属新种:白角横脊叶蜂Tripidobeleses albicornis gen.et sp.nov.青蓝柄基叶蜂Conobeleses metallicus g  相似文献   

11.
Aorella multiplex gen. et sp.n. is described and figured. The species lives amongst algae and phanerogams on reef flats in Fiji. The species cannot readily be assigned to any known genus of Aoridae (sensu Myers 1981), and a new genus is here erected for its inclusion.  相似文献   

12.
记述弹尾目Collembola鳞姚科Tomoceridae单齿鳞姚属Monodontocerus 1新种.  相似文献   

13.
Ichthyostoma thulinii , a new genus and species from Central Somalia and SE Ethiopia is described. Ichthyostoma is best placed in Acanthoideae - Odontoneminae, but is not closely related to any extant genus in that group.  相似文献   

14.
中国暗蛛科一新属和二新种的记述(蜘蛛目)   总被引:5,自引:3,他引:2  
本文记述采自浙江省和湖南省的蜘蛛暗蛛科Amaurobiidae一新属和两新种:花冠蛛属,新属Coronillagen.nov.;蕾形花冠蛛,新种Coronillagenmataspnov.,装饰花冠蛛,新种Coronillasigillatasp.nov.  相似文献   

15.
Ahmed S.  Thandar 《Journal of Zoology》1986,210(4):483-488
A new genus and species of a dendrochirotid holothurian, Pawsonellus africanus , from shallow waters off the east coast of Southern Africa, are described. The new genus is compared with several genera within the family Cucumariidae and it is concluded that it is not closely related to any of them. Although its body wall spicules strongly resemble those of Panningia hyndmani (Thompson), notably the typical form described by Madsen (1942), there are several features which suggest that the two species are not congeneric.  相似文献   

16.
ABSTRACT. A unique group of entodiniomorph protozoa was found in forestomach contents from quokka ( Setonix brachyurus ), western grey kangaroo ( Macropus fuliginosus ), red kangaroo ( Macropus rufus ) and euro ( Macropus robustus erubescens ). A new genus, Macropodinium n.g., containing five new species, is described. Three species are described from forestomach contents of the quokka: Macropodinium baldense n. sp., Macropodinium moiri n. sp. and Macropodinium setonixum n. sp. A single species, Macropodinium ennuensis n. sp., is described from the red kangaroo and euro. The last species, Macropodinium yalanbense n. sp., is described in forestomach contents from the western grey kangaroo. At least three distinct features in the new genus are incompatible with any of the described families in the order Entodiniomorphida. On this basis, the new family Macropodiniidae has been created.  相似文献   

17.
The genus Hemibidessus Zimmermann, 1921 is revised. Six species are recognized in the genus. Two new species are described, H. spirodiscus sp. n. from Bolivia and H. spangleri sp. n. from Argentina. A key for identifying the species is presented. The female genitalia are thoroughly illustrated and described for the first time for any species of Bidessini. Other important diagnostic structures are also illustrated including the male genitalia. A cladistic analysis is presented for 8 species (6 ingroup and 2 outgroup species) and 13 characters. A single most parsimonious cladogram was found.  相似文献   

18.
A new species of the neotropical genus Ischioscia Verhoeff, 1928 is described from the Sierra Nevada de Santa Marta, Colombia: Ischioscia curvaculeus spec. nov. It is characterised by a hook on the merus of the male pereopod 7 not found in any other species of this genus. It was found in the rain forest at an altitude of 1700 m. The phylogeny of the new species is discussed and a note on the biogeography of the Santa Marta region is given.  相似文献   

19.
Carettacola hawaiiensis n. sp. (Trematoda: Spirorchidae) is described from the hepatic vessels of the green turtle, Chelonia mydas (L.), in Hawaii. The new species differs from any previously described species of Carettacola in size, placement of vitellaria, and shape and placement of Laurer's canal. The genus Haemoxenicon Martin and Bamberger, 1952, becomes a synonym of Carettacola Manter and Larson, 1950. Haemoxenicon stunkardi Martin and Bamberger, 1952, is transferred to the genus Carettacola Manter and Larson, 1950, and becomes Carettacola stunkardi n. comb. An emended generic diagnosis for Carettacola is given along with a key to the species.  相似文献   

20.
Three trepostome bryozoan species are described from the Upper Ordovician Zaho?any Formation of Loděnice, Prague Basin, Czech Republic. One genus is new—Lodenicella gen. nov. One species is described in open nomenclature. The described fauna contains ramose colonies or ramose branched projections from encrusting tubular-shaped colonies which inhabited shallow environment with moderate wave energy and significant influx of clastic material.  相似文献   

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