中国蚁微蛛属2新种（蜘蛛目：皿蛛科：微蛛亚科）

记述采自我国江苏省栖霞山和浙江省西天目山蚁微蛛属2新种:胫突蚁微蛛,新种Solenysa pronlrudens sp.nov.和圆斑蚁微蛛, 新种Solenyas circUlaris sp.nov.     

河内蚁蛛雌性记述(蜘蛛目,跳蛛科)

首次发现并报道了采自云南的跳蛛科蚁蛛属河内蚁蛛Myrmarachne hanoii,Zabka,1985的雌性个体。为我国新纪录种。文中详细描述了本种雌性个体的特征及与其近似种的比较,同时附有特征图。研究标本保存于湖南中医药大学。     

土壤皿蛛二新种记述（蜘蛛目：皿蛛科：微蛛亚科）

蚊微蛛属Solenysa是一类小型微蛛,以往该属仅记述一种,Solenysa mellottei Simon,1984,分布于朝鲜和日本,我国尚系首次记述该属蜘蛛。本属最典型的特征为:体微小,腹柄发达而使蜘体呈蚁状,Ⅰ—Ⅳ均仅有一根背刺。本文所记述的二种蜘蛛均系土壤蜘蛛。文内所用单位均为mm。全部模式标本均保存于中国科学院动物研究所。     

中国小蚁蛛属（蜘蛛目：平腹蛛科）1新种及1新纪录

记述采自我国内蒙古贺兰山的2种小蚁蛛,其中有1新种:阿拉善小蚁蛛Mi-caria alxa sp.nov.,1新纪录种:图瓦小蚁蛛Micaria tuvensis Danilov,1993。     

中国云南蚁蛛属一新种记述(蜘蛛目,跳蛛科)

记述了产于我国云南的蚁蛛1新种:环蚁蛛 Myrmarachne circulus sp.nov.,标本采自云南勐腊,保存在湖南师范大学生命科学院,量度单位为mm.新种与黄蚁蛛Myrmarachne plataleoides(Cambridge,1869)相似,但有以下区别:1)雄蛛螯肢外侧近平直,后者呈"P"形;2)生殖球肥大,后者较细小;3)贮精管粗大,半环形,后者较细小,呈"S"形;4)兜位于外雌器中下部,后者位于下部.     

我国瓦蛛属1新种（蜘蛛目：皿蛛科：微蛛亚种）

记述采自安徽黄山的蜘蛛目皿蛛科微蛛亚科瓦蛛属1新种,定名为walckenaeriacylindrica sp.nov.     

中国蚁蛛属一新种记述(蜘蛛目:跳蛛科)

记述了我国蚁蛛属1新种：短螯蚁蛛Myrmarachne brevis sp.nov.,标本采自云南景洪和广西北海,保存在白求恩医科大学生物教研室和湖南中医学院生物教研室。正模测量如下（单位：mm),体长6．82,头胸部长3．05,腹部长3．50,眼区长1．26,第1眼列宽1．45,第3眼列宽1．50,头胸部背面棕红色,眼周围黑色,眼区中央有1对短棒状黑褐斑,螯肢较短小,触肢器圆饼状,贮精囊如“C”型弯曲的肠管状。     

中国瘤胸蛛属一新种（蜘蛛目：皿蛛科：微蛛亚科）

本文描述了采自湖北省神农架林区的微蛛亚科瘤胸蛛属Oedothorax一新种:毛丘瘤胸蛛,新种Oedothorax collinus sp.nov.这一新种雄蛛头胸部背侧隆突上生有短毛,触肢胫节多突起。雌蛛外雌器背板略隆起。模式标本保存于白求恩医科大学生物教研室。     

酷似蚂蚁的蜘蛛———蚁蛛

１形态蚁蛛（Ｍｙｒｍａｒａｃｈｎｅ）无论在形态,还是色泽上,都酷似大蚂蚁（如下图所示蚁蛛属３种蚁蛛）。我在武汉东湖风景区采集蜘蛛标本时还误以为是大蚂蚁。蚁蛛体型窄长,与蚂蚁相似。其体躯分为头胸、腹２部分,这一点与体躯分为头胸、腹３部分的蚂蚁不同。但形...     

中国微蛛亚科3新纪录属5新纪录种（蜘蛛目：皿蛛科）

记述了采自我国吉林省、新疆维吾尔自治区和湖北省皿蛛科微蛛亚科蜘蛛3新纪录属5新纪录种:双头蛛属,奇异双头蛛,盾大蛛属,尖盾大蛛;微玛蛛属,小突微玛蛛,双舟蛛属,叉胫双舟蛛,胫毛双舟蛛。     

Phylogenetic analysis and revision of the linyphiid spider genus Solenysa (Araneae: Linyphiidae: Erigoninae)

In this paper we carry out a taxonomic revision and phylogenetic analysis of the linyphiid spider genus Solenysa Simon, 1894. A total of 12 species is treated here, including five new species collected from China and Japan: Solenysa akihisai Tu sp. nov., Solenysa lanyuensis Tu sp. nov., Solenysa retractilis Tu sp. nov., Solenysa tianmushana Tu sp. nov. , and Solenysa yangmingshana Tu sp. nov. Solenysa circularis Gao, Zhu & Sha, 1993 is a junior synonym of Solenysa protrudens Gao, Zhu & Sha, 1993. We have assembled two different character matrices to reconstruct the phylogenetic relationships of Solenysa. In the first matrix (Matrix 1), five representative species of Solenysa were added to the morphological dataset of Miller & Hormiga to test the monophyly of the genus and its placement within Linyphiidae. The genitalic structures and somatic morphology of Solenysa were studied by means of scanning electron microscopy for the first time. To infer the species‐level phylogenetic relationships of Solenysa we produced a second matrix (Matrix 2) that includes all 12 Solenysa species and six outgroup species chosen from the results of the analysis of the first matrix. The two most parsimonious trees from the analysis of Matrix 1 support the monophyly of Solenysa and its placement within the ‘Distal Erigonines’ clade. The single most parsimonious tree resulting from the analysis of the second matrix suggests that the Solenysa clade includes four monophyletic groups, each group represented by a distinct genitalic pattern. The morphology of Solenysa, both somatic and genitalic, is highly autapomorphic. © 2011 The Linnean Society of London, Zoological Journal of the Linnean Society, 2011, 161 , 484–530.     

中国方颜叶蜂属(膜翅目,叶蜂科)种团二新种

记述中国方颜叶蜂属erratica种团二新种:短刃方颜叶蜂Pachyprotasis breviserrula Wei et Zhong,sp.nov.和弱齿方颜叶蜂Pachyprotasis obxurodentellsa Wci et Zhong,sp.nov..新种模式标本保存在中南林业科技大学昆虫模式标本室.     

贵州高原6种掌突蟾形态特征差异分析

本文通过形态指标测量,比较了分布于贵州高原的6种掌突蟾属(Leptobrachella)物种的形态特征差异.结果 显示,头体长比较,6种掌突蟾的头体长从大到小依次为赤水掌突蟾(L.chishuiensis)、绥阳掌突蟾(L.suiyangensis)、金沙掌突蟾(L.jinshaensis)、毕节掌突蟾(L.bijie...     

昆明地区两栖动物多样性及保护研究

昆明地区共有21种两栖动物,隶2目8科12属。区系特点是：物种多样性很丰富,多于我国9个省区;东洋界种类有20种占绝对优势,没有古北界种类,古北东洋两界广布种仅1种;明显具西南区的特色有16种,特有种多,呈贡嵘螈及滇螈是昆明特有种,也是云南特有种,另有滇蛙等12种为中国特有种;模式产地为昆明的种类多,有7种;姬蛙科属种多,共3属4种。该文阐述了昆明为模式产地的种类现状,还提出了昆明地区两栖类的保护对策。     

浙江仙居俞坑森林群落物种多样性研究

分别采用物种丰富度、物种多样性指数和群落均匀度指标对浙江省仙居县俞坑森林群落的物种多样性进行测定和分析。结果表明：本木植物的物种多样性以生境优越的常绿阔叶林为高,木本植物的物种丰富度、物种多样性指数明显大于草本植物。在群落垂直结构中,木本植物等2层的物种丰富度、物种多样性指数均显著大于第1层。物种丰富度以木本第3层最大,草本层最小;而物种多样性指数、群落均匀度则以木本第2层最大、草本层最小。木本植物各层次、草本层的物种多样性各项指标在群落各样地间均有一定的差异。     

Hypothesis: the rate and scale of dispersal of freshwater diatom species is a function of their global abundance

We have analysed the geographical records of a representative selection of extant diatom species from a freshwater pond. The more often a species is recorded in the ecological literature, the greater is its apparent global distribution. One explanation is that the frequently recorded species are globally abundant, whereas species that are infrequently recorded are globally rare. We suggest a model in which random dispersal is the dominant force driving large-scale distribution of species, with the rate and scale of dispersal largely determined by global population size. Thus species that are locally rare or abundant are likewise rare or abundant worldwide. It is predicted that many of the rarer diatom species will, with additional sampling effort, be shown to have wide geographical distribution, but this requires intensive studies focused on revealing species that are normally cryptic. The argument in favour of endemic diatom species is untenable, because it is not possible to disprove their existence elsewhere in the biosphere.     

澜沧江西双版纳段鱼类组成和物种多样性

根据2018-2020年澜沧江西双版纳段5次鱼类资源调查数据,结合相关文献资料,对该流域鱼类组成及物种多样性进行了分析。结果显示：澜沧江西双版纳段此次共调查到鱼类119种,隶属于11目28科79属,而历史记录鱼类共179种,隶属于12目34科106属。随着调查的不断深入,土著鱼类种数逐渐增多,但占比却逐渐下降,外来鱼类种数逐渐增多,占比也逐渐升高;本次调查到土著鱼类92种,占鱼类种数的77.31%,占比进一步下降;外来鱼类27种,占鱼类种数的22.69%,占比进一步升高。该区域鱼类优势种为云南吻孔鲃Poropuntius huangchuchieni和少鳞舟齿鱼Scaphiodonichthys acanthopterus,常见种为长臀鲃Mystacoleucus marginatus和宽额鳢Channa gachua。有《国家重点保护野生动物名录》（2021年）鱼类5种,《中国生物多样性红色名录脊椎动物卷》（2015年）受威胁鱼类8种。相对于我国其他江河,澜沧江西双版纳段有极高水平的鱼类物种多样性,其中澜沧江干流鱼类物种多样性相对于左、右岸支流较低,左岸支流鱼类多样性高于右岸,罗梭江鱼类多样性高于其他一级支流。虽然澜沧江西双版纳段鱼类物种多样性维持在较高水平,但土著鱼类占比下降趋势明显,仍面临着严重威胁,本文分析了受威胁因素,并提出了保护建议。     

A Preliminary Investigation on the Status of the Wildlife Trade in Guangxi,China

1IntroductionWildlifetradeisamain~mpetustoutilizewildlife.Thechangeinspeciesandvolumein-volvedinthewildlifetrademayreflectconservationstatus,dynamicsandexploitedlevelofwildliferesources.Thestudyonwildlifetradeisthetheoriticalbasisonwhichproposalsastolimittradeonrareorendangeredspeciescanbemade,andwithwhichfuturemonitoringofthetradecanbecompared.Theresultalsocanbeusedtoevaluateconservationeffectsofprotectionmeasuresandlawsforbiodiversityconservation.Itisofgreatsignificanceinguid-ingsustainable…