A new Mesozoic caudate （Liaoxitriton daohugouensis sp.nov.） from Inner Mongolia,China

Fossil caudates are rare and mostly preserved by fragmentary material in the Mesozoic. The recent reports of five monotypic genera with articulated skeletons in China have thus drawn worldwide attention. These Chinese forms are yielded in the Lower Cretaceous Jehol Group or slightly lower horizon, and have relatively earlier     

Two new Jurassic stoneflies （Insecta： Plecoptera） from Daohugou,Inner Mongolia,China

Two new genera and two new species of family Taeniopterygidae, Mengitaenioptera multiramis gen. et sp. nov. and Noviramonemoura trinervis gen. et sp. nov. are described. These fossils were collected from Daohugou Village （the Middle Jurassic）, Inner Mongolia, China. Hitherto, these fossil species from Daohugou are the oldest taeniopterygids. Both simple and complex venations simultaneously occurred in this group, which reveals that the early diversification of taeniopterids was well underway by the Middle Jurassic. Therefore, we prefer to adopt the Comstock＇s opinion that the venation of taeniopterids was derived from the simple venation of the older group （such as Palaeonemouridae） at much ancient geological time ago. Some of the descendants carried this simple venation; others evolved into complex venation with many additional crossveins and branches.     

Occurrences of Permian radiolarians in central and eastern Nei Mongol （Inner Mongolia） and their geological significance to the Northern China Orogen

The Zhesi (Jisu) Formation of the Middle Permian in Nei Mongol (Inner Mongolia) was commonly considered to be a shallow marine sequence. Here I report the radiolarians found in the argillite bed of that formation in Zhesi and Xilinhot areas. This fact indicates a deep marine sedimentary facies persisted during the Middle Permian, and suggests that the ocean between the North China Block and Siberian Craton was not closed until the Late Guadalupian. The suture of this two blocks is probably extends along the Linxi ophiolite belt, south of the Hegenshan ophiolite belt.     

A new fossil genus of Mesosciophilidae （Diptera, Nematocera） with two new species from the Middle Jurassic of Inner Mongolia, China

A new genus within the family Mesosciophilidae,Jurasciophila gen.nov.,with two new species,J.curvula gen.et sp.nov.and J.lepida gen.et sp.nov.,are described and illustrated.They are established based on fossil specimens with bodies and complete wings.All of them were collected from the late Middle Jurassic Jiulongshan Formation of Daohugou in southeastern Inner Mongolia,China.Comparing with two known genera,Mesosciophilina (Kovalev,1985) and Mesosciophilopsis (Blagoderov,1994),the new genus has transitional characters.The distribution pattern of Mesosciophilidae is briefly discussed.     

New fossil elaterids （Insect： Coleoptera： Polyphaga： Elateridae） from the Middle Jurassic of Inner Mongolia, China

A new genus with a new species of fossil elaterid, Paraprotagrypnus superbus gen. et sp. nov., from the Middle Jurassic Jiulongshan Formation in Daohugou Village (N41°18.979′, E119°14.318′), Shantou Township, Ningcheng County, Inner Mongolia, China is described and illustrated. The genus Paraprotagrypnus belongs to the family of Elateridae, subfamily of Protagrypninae and tribe of Protagrypnini. Some primitive characters of the new genus and new species shed light on the ages between the Jiulongshan Formation in Inner Mongolia and the Yixian Formation in the western Liaoning Province of China. The habitat of the new species is briefly discussed.     

Vegetation Spatial Heterogeneity of Different Soil Regions in Inner Mongolia, China

The vegetation spatial heterogeneity and ecological characteristics in different soil regions were analyzed by surveying the vegetation in 12 different soil regions of Inner Mongolia, China, including conifer- ous-broadleaf deciduous forests, shrub, grassland, and desert regions with 1122 large 2 cm × 2 cm quad- rats (actual size 30 km × 30 km, referred to as L-quadrat hereafter) in about 1.18 million km2. Each L- quadrat was divided into four small 1 cm × 1 cm quadrats (actual size 15 km × 15 km, S-quadrat). The vegetation was analyzed based on the beta-binomial distribution to describe the frequency of occurrence and spatial heterogeneity for each kind of vegetation. The weighted average of the heterogeneity of all vegeta- tion in the same soil region provides a measure of the soil regional landscape level heterogeneity which de- scribes the spatial complexity of the regional landscape composition of the existing vegetation. Comparison of the vegetation characteristics in the 12 soil regions shows that, the calcic gray soil has the highest average vegetation type per quadrat. The largest soil region is calcic chestnut soil and has the most vegetation types. Every soil region has its own dominant vegetation sequence which dominates in occurrence and dominant vegetation types which dominates in spatial heterogeneity. For the Inner Mongolian vegetation, the weighted average of the heterogeneity is 0.60 and the vegetation diversity index is 4.47.     

New dragonflies （Insecta： Odonata： Gomphaeschnidae） from the Yixian Formation in Inner Mongolia,China

Two fossil dragonflies from the Upper Jurassic to Lower Cretaceous Yixian Formation in Liutiaogou Village, Ningcheng County, Inner Mongolia, China are described and illustrated. They are assigned to two new genera and species, i.e., Sophoaeschna frigida gen. et sp. nov. and Falsisophoaeschna generalis gen. et sp. nov. within the family Gomphaeschnidae Tillyard ＆ Fraser, 1940. This is the first report of Odonata from Yixian Formation in Inner Mongolia and the second record of fossil Gomphaeschnidae from China.     

Reconstruction of May—July precipitation in the north Helan Mountain, Inner Mongolia since A.D. 1726 from tree-ring late-wood widths

Inrecentyears,greatprogressofdendroclimatologystudyhasbeenmadeinChina,andlotsofvaluabledatahavebeenobtained.Theclimaticfactors,suchastem-perature,precipitation,etc.,havebeenreconstructedonthebasisoftree-ringdataforthepastseveralcenturies[1—5].Thesedatahaveplayed(orwillplay)animportantroleinbothregionalandglobalchangeresearches[6].Sofar,however,tree-ringdatafromtheboundaryofthedeserttoloessareainnorthwestChinaaresparse[7].Thisstudywillusethetree-ringdataintermsofthestatisticalmethodtoreconstr…     

The first record of Helicoprion Karpinsky （Helicoprionidae） from China

A new species,Helicoprion jingmenense sp. nov.,from the Lower Permian Qixia Formation of Hubei Province,China,is described based on a nearly complete symphyseal tooth spiral preserved as part and counterpart. The specimen is a large elliptical symphyseal tooth spiral with 41/3 volutions,with cutting blade being relatively wide,and its width being greater than the height after 31/2 volution,middle portion being higher than the cutting blade,narrowed base being short. There is a distinct space not covered by enameloid in two adjacent tooth crowns in the outermost two volutions; the height of the compound root is moderate,and the ventral groove is about 1/10 of the same tooth crown. In com-parison with other known Helicoprion species of the world,the new species resembles H. ferrieri and H. bessonowi. However,it can be easily distinguished from H. ferrieri by the wider cutting blade,the shorter narrowed base and lower compound root,and also from H. bessonowi by its more narrowed compound root and less than 39 tooth crowns per volution. Helicoprion jingmenense sp. nov. is obvi-ously different from helicoprionid species previously found in China in general shape,size and his-tology. However,it is very difficult to identify their relationships because of the fragmentary nature of holotypes of the latter. Because the new specimen is the first record of Helicoprion and the most com-plete fossil dentition of helicoprionids from China,the new species is of significance for biostratigra-phy and paleobiogeography.     

中国斯捷蝽属新种记述(半翅目:捷蝽科)

该文记述捷蝽科 (Velocipedidae) 3新种 ,即杜斯捷蝽 ,新种 Scotomedesdoesburgi sp.nov.、广西斯捷蝽 ,新种 Scotomedes guangxiensis sp.nov.、云南斯捷蝽 Scotomedes yunnanensis sp.nov.     

中国西南真枝藻科(Stigonemataceae)植物志要 1.广东省真枝藻属(Stigonema Ag.)的研究

真枝藻属Stigonema Ag.植物在广东省(包括海南岛)分布广,种类多,计有20种和6变种·其中16种和9变种为广东省新记录,6种和5变种为我国新记录,4种为新种,一个为新变种·新种和新变种为:南雄真枝藻Stigonema nanxiongensis sp.nov.、海南真枝藻St.hainanensis sp.nov.、乐昌真枝藻St.lechaingensis sp.nov.、胶团真枝藻St.gelatinosum sp.nov.和畸形真枝藻长殖段变种St.informe var.longihormogo-natum var.nov..本文标本采自海拔300—1200米的高山林区,主要生长于岩石表,多数混生于苔藓植物间.     

中国圆臀大蜒一新种(蜻蜓目:大蜒科)

本文记述了圆臀大蜒属Anotogaster Selys一新种:赵氏圆臀大蜒Anotogaster chaoi Zhou,sP.nov.模式标本保存在浙江自然博物馆。     

湖北省武当山隙蛛属二新种（蜘蛛目：漏斗蛛科）

本文描述采自湖北省武当山的漏斗蛛科隙蛛属二新种:双刃隙蛛、多曲隙蛛。     

中国眼子菜属一新种

近年来在四川、黑龙江和新疆等省、自治区发现眼子菜属一个新种,该新种因具异枝异叶,被命名为异枝眼子菜（新种）;其果具相同的背腹脊（棱）各一条;嘴小,背曲如钩;被片果时变厚硬而绿色;鲜果球形,干后果皮的在皮细胞呈多角形,而不同于属内其他种类。且生态变异幅度大,生丛密杂草之空隙中者,无浮泛叶,正常开花结果;生近岸波动之浅水中者,则通常不分枝。     

厦门海域软骨鱼类盘首目绦虫两新种记述

报道厦门海域鱼类盘首目两种绦虫新种：厦门盘首绦虫和赤四边首绦虫，隶属盘首科（ＬｅｃａｎｉｃｅｐｈａｌｉｄａｅＢｒａｕｎ）的盘首属（ＬｅｃａｎｉｃｅｐｈａｌｕｍＬｉｎｔｏｎ）和四边首属（ＴｅｔｒａｇｏｎｏｃｅｐｈａｌｕｍＳｈｉｐｌｅｙ＆　Ｈｏｒ－ｎｅｌｌ）两个属，宿主均为海水软骨鱼类。     

杀虾微杆菌血清同源性及血清学检验

以分离于日本对虾（Penaeus japonicus）虾苗的杀虾微杆菌（Microbacterium shrimpcida sp．nov．）代表菌株（HID10406-1）,分别制备全菌（OK）及热处理（121℃作用1h）的菌体（O）免疫原,强化免疫家兔制备相应抗血清,对供试6株杀虾微杆菌纯培养物进行了血清型检定。结果表明,均存在同种的O抗原（血清同源）,不存在不耐热表面（K）抗原。以相应OK抗血清为第一抗体,以标准的羊抗兔IgG荧光抗体为第二抗体,对该6株纯培养菌及用代表菌株人工感染病死虾体组织进行间接荧光抗体染色,结果显示了特异的荧光反应;同时,对从人工感染死亡虾分离的10株纯培养菌以凝集反应方法进行了检验,显示出特异凝集现象。