广东省南昆山蚱科一新属一新种

本文记述采自广东省龙门县南昆山的蚱科一新属一新种。模式标本保存于中山大学昆虫研究所标本室。 尖额蚱属Sibynae新属 头顶在复眼前十分突出,近似三棱形,背面平坦,中央缺纵隆线,侧缘平直。颜面十分倾斜。触角位于复眼之间的下缘,13节,丝状。侧单眼在复眼中部之间、触角之上方;中     

澳汉蚱属一新种（直翅目：蚱科）

本文对澳汉蚱属的建立作了简要的介绍,列出该属的种检索表,报道了一新种。     

中国驼背蚱属一新种(直翅目,枝背蚱科)

记述采自广东省直翅目枝背蚱科驼背蚱属1新种,郑氏驼背蚱Gibbotettix zhengi sp.nov.,模式标本保存于中山大学生物博物馆;列出驼背蚱属分种检索表。     

广东省蚱科一新属一新种(直翅目)

本文记述采自广东省南昆山及龙头山的蚱科一新属一新种。模式标本保存于中山大学昆虫研究所标本室。 扁角蚱属Flatocerus Liang et Zheng新属 头不向前突出。头顶宽与一只复眼等宽。颜面隆起在触角间向前突出。触角12节位于复眼下缘,近似丝状;近顶端五节明显侧扁扩大,似长方形。前胸背板屋脊形,上缘侧     

中国蚱科一新属一新种(直翅目:蚱总科)

在整理陕西师范大学生物系蝗虫研究室及中山大学昆虫研究所的蚱科标本中,发现一新属一新种,现报导如下: 拟汉蚱属Pseudohancockia,新属 体粗短,小型。全身具粗糙瘤突和皱纹。头顶宽短,其宽度约为一眼宽的2—3倍。颜面隆起在触角之间突出。触角极细,位于复眼下缘之下。复眼小,圆形,突出;侧单     

澳汉蚱属的分类研究及一新种记述(直翅目: 蚱总科: 枝背蚱科)

研究了分布于中国澳汉蚱属Austrohancockia的种类共10种,其中包括采自广西的1新种,即长背澳汉蚱Austrohancockia longidorsalis sp. nov.;并提供了分种检索表。新种模式标本保存于陕西师范大学动物研究所昆虫标本室。     

云南枝背蚱科一新属一新种(直翅目:蚱总科)

记述采自云南省绿春县牛孔乡的直翅目蚱总科枝背蚱科1新属:盾蚱属Aspiditettix gen.nov.及1新种--云南盾蚱Aspiditettix yunnanensis,sp.nov..模式标本保存于中山大学生物博物馆昆虫标本室.     

云南省蚱科一新属新种(直翅目:蚱科)

本文报道蚱科一新属一新种。新属,微翅蚱属Alulatettix gen nov.的主要特征是前胸背板强烈隆起呈屋脊形,前胸背板侧片后缘具二凹陷,前、后翅甚微小。其模式种为云南微翅蚱Alulatettix yunnanensis sp.nov.     

广西短翼蚱科的新属和新种(直翅目:蚱总科)

记述采自广西大瑶山地区短翼蚱科一新属二新种,即拟科蚱属Ｃｏｔｙｓｏｉｄｅｓ Ｚｈｅｎｇ ｅｔ Ｊｉａｎｇ,ｇｅｎ．ｎｏｖ．广西拟科蚱Ｃｏｔｙｓｏｉｄｅｓ ｇｕａｎｇｘｉｅｎｓｉｓ Ｚｈｅｎｇ ｅｔ Ｊｉａｎｇ,ｓｐ．ｎｏｖ．及瑶山大磨蚱Ｍａｃｒｏｍｏｔｅｔｔｉｘ ｙａｏｓｈａｎｅｎｓｉｓ Ｚｈｅｎｇ ｅｔ Ｊｉａｎｇ,ｓｐ．ｎｏｖ．。模式标本保存于陕西师范大学动物研究所。     

安徽澳汉蚱属一新种记述（直翅目：蚱总科：枝背蚱科）

记述采自安徽的澳汉蚱属Austrohancockia 1新种,即岳西澳汉蚱A. yuexiensis Zha, Deng & Zheng sp. nov.。该新种近似于嘉氏澳汉蚱A. gressitti和武夷山澳汉蚱A. wuyishanensis, 主要区别为：1）头顶宽是1眼宽的3.0倍;2）颜面隆起纵沟宽为触角基节宽的1.5倍;3）前胸背板肩前的片状隆起具1靠后的深凹陷;4）前胸背板后突不达后足股节顶端,端部中央浅凹;5）雌性生殖板后缘中央三角形突出,后缘两侧弧形突出。模式标本存放于淮北师范大学生命科学学院标本室。     

ANATOMY AND SYSTEMATIC PLACEMENT OF SAYELLA LAEVIGATA (GASTROPODA: PYRAMIDELLIDAE: SAYELLINAE)

The ectoparasitic snail Sayella laevigata was first describedby Orbigny (1842) and first placed in the genus Sayella by Odé (1994) without discussion. This study provides justificationfor this assignment to the genus Sayella Dall, 1885 and to the subfamilySayellinae Wise, 1996. Sayella laevigata possesses an elongatepenis, with subapical swelling tapering to a short terminalnipple, that is characteristic of the genus.     

FURTHER STUDIES ON THE TAXONOMY AND BIOLOGY OF THE OCTOCORAL-FEEDING GENUS PHYLLODESMIUM EHRENBERG, 1831 (NUDIBRANCHIA: AEOLIDOIDEA)

The aeolid nudibranch genus Phyllodesmium (Mollusca: Gastropoda)is reviewed, three new species are described and further informationon the biology, anatomy and distribution on the eight previouslyknown species is reported. The genus Ennoia Bergh, 1896 is considereda synonym of Phyllodesmium and the type species Ennoia briareusredescribed. The genus Phyllodesmium is unique amongst the aeolidsin feeding on octocoral cnidarians. This has led to the evolutionof nudibranch- zooxanthellae symbioses, zooanthellae being obtainedfrom the octocoral prey. The adaptations developed throughoutthe genus are described and possible relationships between thespecies proposed. (Received 6 January 1990; accepted 20 May 1990)     

The genus Doliolina (Thaliacea: Doliolida)

The anatomical structure of the gonozooids of the differentspecies of the genus Doliolina has been re-examined. A divisionof the genus into two subgenera, Doliolina and Doliolinetta,based on the compared shape and position of the gonads, is proposedand a revised dichotomous key of the species is presented.     

A NEW GENUS AND SPECIES OF PLANORBIDAE (GASTROPODA: HETEROBRANCHIA: PULMONATA) FROM NORTHERN AUSTRALIA

A new genus and species of Planorbidae, Kessneria papillosa n.gen.and sp. from the Northern Territory, Australia, are described.The new genus is morphologically most similar to Leichhardtia,another genus restricted to Northern Australia, from which itdiffers in a number of important shell and anatomical characters.The shell of the new genus differs from all other planorbidsin having a raised, papillate protoconch, and is also uniqueamongst Australian high-spired genera in being umbilicate and inhaving a sinuate outer lip. (Received 12 May 2000; accepted 25 September 2000)     

基于线粒体COI基因序列的文蛤属(软体动物门:帘蛤科)系统发育关系(英文)

测定了4种文蛤属贝类的15个个体的COI基因序列,并从GenBank下载了短文蛤 (M. petechialis)的相应序列。比对后的序列长度为574 bp,包括93个简约信息位点,A、T、C和G的平均含量分别为21.15%、44.71%、14.05%和20.09%。通过对序列的分析,共定义了12个单倍型：文蛤 (M. meretrix) 4个,斧文蛤 (M. lamarckii) 2个,丽文蛤 (M. lusoria) 3个,琴文蛤 (M. lyrata) 1个,短文蛤2个。以青蛤(Cylina sinensis)为外群,用MP法和贝叶斯法构建系统树。结果显示,短文蛤、丽文蛤和文蛤为亲缘关系较近的物种, 支持短文蛤和丽文蛤为文蛤的同物异名的观点。     

Systematic revision of Jorunna Bergh, 1876 (Nudibranchia: Discodorididae) with a morphological phylogenetic analysis

The genus Jorunna is characterized by a dorsum covered withcaryophyllidia, a prostate with two sections, a penis usuallyunarmed but occasionally armed with hooks, a copulatory spine,the presence of an accessory gland and a labial cuticle smoothor armed with jaw elements. The examination of 216 non-typespecimens, 30 types, and a review of the literature show thatthere are 16 valid species of the genus Jorunna: J. tomentosa(Cuvier, 1804); J. funebris (Kelaart, 1859); J. pantherinaAngas,1864; J. rubescens (Bergh, 1876); J. labialis (Eliot, 1908);J. parva (Baba, 1938); J. spazzola (Marcus, 1955); J. hartleyi(Burn, 1958); J. alisonaeMarcus, 1976; J. lemchei (Marcus, 1976);J. evansi (Eliot, 1906); J. pardusBehrens & Henderson, 1981;J.ramicolaMiller, 1996 and J. onubensis Cervera, García-Gómez& García, 1986. In addition, two new species fromthe Eastern Pacific are described: J. osae n. sp. and J. tempisquensisn. sp. We propose two new combinations: Jorunna parva and J.evansi. New records for the genus Jorunna are provided fromItaly, Algeria, Seychelles, Madagascar, Thailand, Marshall Islands,New Caledonia, Île de la Réunion, Sudan, PapuaNew Guinea, Indonesia, Panama, Costa Rica, Bahamas, and SouthernMexico. We present the first preliminary phylogenetic analysisof this cryptobranch dorid genus, based on morphological anatomicaldata, and discuss the biogeography and evolution of severalcharacters in this group. The phylogeny supports the hypothesisthat the genus Jorunna is a monophyletic group and shows thatKentrodoris is nested within it. (Received 31 December 2004; accepted 10 January 2008)     

Variation in social behavior within a spider mite genus, Stigmaeopsis (Acari: Tetranychidae)

The spider mites belonging to the genus Stigmaeopsis constructextremely dense oval woven roofs (web-nests) over depressionson the lower surface of host leaves and are known to have akind of sociality. The four species that occur on bamboo plantsin Japan show different nest areas. The nest area of Stigmaeopsislongus is the largest, followed by that of S. celarius, S. takahashii,and S. saharai in decreasing order. Smaller nests effectivelyprevent adults of several predator mite species from intruding.We hypothesized that variation in nest size reflects differentanti-intruder adaptations of this mite group in relation totheir sociality. The larger nest makers may adopt an alternativeanti-intruder strategy, namely, counterattack by a large group,so as to compensate for the disadvantage of large nests. S.longus and S. celarius adults effectively defended their largenests against potential predators, and the effects of nest defenseincreased with the number of individuals in a nest. S. takahashiiand S. saharai revealed no counterattack effect. Counterattackabilities that increase with the adult density, and thus, socialitymay compensate for the vulnerability of larger nests.     

The Diatom Genus Tabellaria: I. Taxonomy and Morphology

A morphological study of natural populations of Tabellaria infresh water suggested that there were two fundamentally differenttypes of growth (and therefore frustule structure) in the genus,and this has been confirmed by means of unialgal clone cultures.The existence of these different types of growth forms the basisfor a revision of the genus. A diagnosis of T. quadriseptatanov. spec, is given, the specific limits of T. fenestrata andT. flocculosa are redefined, and the occurrence of T. binalisin Britain is reported for the first time.     

盲蝽科一新属及二新种记述(半翅目：盲蝽科)

盲蝽科一新属及二新种记述（半翅目：盲蝽科）齐宝瑛,能乃扎布（内蒙古师范大学生物系呼和浩特０１００２２）在鉴定由阿拉善盟森防站提供的一批采自贺兰山西坡以及作者几年来采集的盲峙科昆虫标本时,发现一新属以及分别隶属于该新属和另外一属的两个新种,现将新属及新...