甘肃南部巴蜗牛科(腹足纲:巴蜗牛科)的种类名录

本文根据甘肃南部所辖地区采集的腹足目巴蜗牛科标本和国内外报道,对其进行系统整理研究,列出巴蜗牛科动物76种,分隶11属1科,其中30种为甘肃省新纪录.     

A revision of the genus Labidochromis (Teleostei: Cichlidae) from Lake Malawi

The diagnosis of the genus Labidochromis is revised to include species with bicuspid outer teeth. Sixteen species, of which 13 are new, are described and illustrated and the validity of five others is discussed. The interrelationships between members of the genus and the relationship of the genus to other genera are discussed. No clearly defined sister group to the genus has been found either within or outside the Lake Malawi cichlid species flock. A key based on the coloration of known species is included.     

History and current taxonomic status of genus Agrobacterium

The genus Agrobacterium was created a century ago by Conn who included it in the family Rhizobiaceae together with the genus Rhizobium. Initially, the genus Agrobacterium contained the non-pathogenic species Agrobacterium radiobacter and the plant pathogenic species Agrobacterium tumefaciens and Agrobacterium rhizogenes. At the end of the past century two new pathogenic species, Agrobacterium rubi and Agrobacterium vitis, were added to the genus. Already in the present century these species plus Agrobacterium larrymoorei were reclassified into genus Rhizobium. This reclassification was controversial and for a time both genus names were used when new species were described. Few years ago, after a taxonomic revision based on genomic data, the old species A. rhizogenes was maintained in the genus Rhizobium, the old species A. vitis was transferred to the genus Allorhizobium and several Rhizobium species were transferred to the genus Agrobacterium, which currently contains 14 species including the old species A. radiobacter, A. tumefaciens, A. rubi and A. larrymoorei. Most of these species are able to produce tumours in different plants, nevertheless the genus Agrobacterium also encompasses non-pathogenic species, one species able to nodulate legumes and one human pathogenic species. Taking into account that the species affiliations to five Agrobacterium genomospecies have not been determined yet, an increase in the number of species within this genus is expected in the near future.     

Helminths in Mesaspis monticola (Squamata: Anguidae) from Costa Rica, with the description of a new species of Entomelas (Nematoda: Rhabdiasidae) and a new species of Skrjabinodon (Nematoda: Pharyngodonidae)

Entomelas duellmani n. sp. (Rhabditida: Rhabdiasidae) from the lungs and Skrjabinodon cortagoensis n. sp. (Oxyurida: Pharyngodonidae) from the intestines of Mesaspis monticola (Sauria: Anguidae) are described and illustrated. E. duellmani is the sixth species assigned to the genus and is the third species described from the Western Hemisphere. It is easily separated from other neotropical species in the genus by pre-equatorial position of its vulva. Skrjabinodon cartagoensis is the 24th species assigned to the genus and differs from other neotropical species in the genus by female tail morphology.     

齿蟾属的系统学研究进展

齿蟾属(Oreolalax)为中国特有属,主要分布在我国西南地区。本文对该属的系统学研究进行了综述,包括属的建立与物种组成、地理分布特征、细胞分类学、系统发育研究历史,以及尚需研究或进一步研究的问题。     

Five new species of Triotemnus (Coleoptera, Curculionidae, Scolytinae) from Morocco and Yemen

Fivenew species of the genus Triotemnus from Morocco and Yemen are described. Triotemnus is a new genus of Scolytinae for the Yemen region. External morphology of the new species and all morphologically related species of the genus were studied. While the new species from Morocco are morphologically similar to the known species from the corresponding region, all three newly described species from Yemen, mainly two of them living in Socotra, are morphologically very different from all other known species of the genus. Geographical distribution and the probability of endemicity are discussed.     

The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: the genus Glossodoris Ehrenbergh (= Casella, H. & A. Adams)

The genus Glossodoris Ehrenberg is reviewed and 28 species are placed in the genus. Seventeen species are fully described and of these, seven are named as new species. Four others are considered new to science, but insufficient material is available to name them. Published information on a further 11 species is included as is a discussion on phylogenetic trends within the genus.     

The genus Arhaconotus Belokobylskij (Hymenoptera, Braconidae, Doryctinae) from China, with description of a new species

The genus Arhaconotus Belokobylskij (Hymenoptera: Braconidae, Doryctinae) is recorded for the first time from China. A new species of this genus, Arhaconotus hainanensis Tang & Chen, sp. n., is described and illustrated. A key to the species of this genus is updated to include the new species.     

Genome sequences of type strains of seven species of the marine bacterium Pseudoalteromonas

There are over 30 species in the marine bacterial genus Pseudoalteromonas. However, our knowledge about this genus is still limited. We sequenced the genomes of type strains of seven species in the genus, facilitating the study of the physiology, adaptation, and evolution of this genus.     

A review of the Banchus-group of ichneumon-flies, with a revision of the Australian genus Philogalleria (Hymenoptera: Ichneumonidae)

ABSTRACT. The composition and relationships of the Banchus genus-group are discussed. A key to the genera is provided and for each genus a diagnosis and notes are given. A new genus and species are described. The genus Philogalleria Cameron is revised: six species (five of them new) are recognized, described and keyed. Rhynchobanchus is newly recorded from Britain and a key is given to its European species.     

A revision of the genus Nomocharis Franchet

SEALY, J. R, 1983. A revision of the genus Nomocharis Franchet. A taxonomic revision of the genus Nomocharis Franchet is presented, recognizing seven species. Notes are given on the species and hybrids in cultivation. A key for identification of the species and an index to specific epithets, including synonyms, are given, together with species excluded from the genus. Herbarium specimens are cited.     

A Study on Dichocarpum (Ranunculaceae)

The genus Dichocarpum was established by W. T. Wang and Hsiao in 1964, who divided the genus into 2 sections: Sect. Dichocarpum including 10 species distributed on the mainland of E. Asia, and Sect. Hutchinsonia including 9 species native to Japan. M. Tamura and L. A. Lauener made a revision of the genus in 1968, who divided the genus into 4 sections, three for the species of the mainland of E. Asia, including 3 series and 10 species, and the other for the species of Japan, including 2 subsections, 3 series and 9 species. In the present paper, the genus is divided into 2 sections and 6 series, including 15 species and 3 varieties, and a putative phylogeny of the genus is proposed. The genus may be close to the genus Asteropyrum, and these two genera are rather specialized in Thalictroides (Ranunculaceae), because they have three very similar characters: the petal with a long claw, the stephanocolpate pollen and the chromosome morphology. The genus has 2n=24, 35(36?), which indicates that its basic number is X=6, and the species on the mainland of E. Asia (Sect. Dichocarpum) may well be paleotetraploids, whereas those in Japan (sect. Hutchinsonia) are paleohexaploids. Most of the advanced species are distributed in Japan and the most primitive ones in China and the Himalayas, the distribution pattern seggests that the Japanese members of this genus might have immigrated from China in the Tertiary, and differentiated and evolved there. The putative phylogeny of the genus is shown in Fig. 2 (at series level)     

Synopsis of Leymus Hochst. (Triticeae: Poaceae)

Leymus is a genus in the Triticeae tribe, Poaceae. The taxa of this genus are allopolyploid species which possess the Ns and Xm genomes. According to cytological, cytogenetic and molecular genetic analyses, some species of Hystrix and Elymus ought to be transferred to this genus. A world revision of the genus Leymus is needed. In this paper we summarize experimental results, provide a key to sections, species and varieties, and list all the taxa we recognize in Leymus with their synonyms. This synopsis is a new taxonomic system to be used for the revision of Leymus.     

六种鼠组织中过氧化物酶和酯酶变异的比较

本文研究姬鼠属（Ａｐｏｄｅｍｕｓ）２种鼠和鼠属（Ｒａｔｕｓ）４种鼠的心组织过氧化物酶和肝组织酯酶同工酶等位基因的变异。结果表明,６种鼠心组织过氧化物酶皆为４条区带,其中社鼠和白腹巨鼠的酶带泳动速度略快于褐家鼠和黄毛鼠的酶带;鼠属４种鼠的酶带间距大致相同,而姬鼠属的酶带间距略大于鼠属,这种谱型的区别就所分析的６种鼠而言,可以认为是该同工酶表现的属间区别。肝组织酯酶区带较多,其酶带数和泳动速度的差异具有明显的种间特征;泳动最快的酶带在姬鼠中是２条,在鼠属中是１条,可以认为是属间特征的区别。从９项生化指标的异同作动物配对比较,表明褐家鼠与黄毛鼠亲缘上较近,社鼠与白腹巨鼠亲缘上也较近,而且白腹巨鼠在进化上可能要比其余３种鼠属动物更接近于姬鼠属     

A new species of Kanahia (Asclepidiaceae) with a reconsideration of the genus

A new species, K. carlsbergiana , is described in what is currently considered a monotypic genus. The new species is only known from permanent streams in the Arssi and Bale regions of S Ethiopia. The delimitation and position of the genus is reconsidered in light of the additional information provided by the new species. The distinctiveness of the genus is reconfirmed whilst no new clues to possible relationships with other genera were observed. The taxonomy of the other species, K. laniflora (Forssk.) R. Br., is also briefly reconsidered.     

Systematics of the Monodelphic Species of Trichodoridae (Nematoda: Diphtherophorina) With Descriptions of a New Genus and Four New Species

To show the relationship of the monodelphic species of Trichodoridae with the nominal taxa, the genus Monotrichodorus is redefined, with the addition of one new species. The new genus Allotrichodorus is proposed on the basis of new species found in Brazil; and one new species is described in the genus Paratrichodorus.     

Molecular phylogeny of Anthyllis spp

For the genus Anthyllis (Fam. Fabaceae, tribe Loteae), with few exceptions, little information is available on the genetic variation among and within species. This genus contains 20 species distributed throughout Europe, Africa, and the Mediterranean basin. The most widespread species is A. vulneraria, and over 30 intraspecies taxa have been identified based on plant morphology. To study the molecular phylogeny of the genus, the sequences of the internal transcribed spacers ITS1 and ITS2 of the nuclear ribosomal DNA of 10 Anthyllis species, including 11 subspecies of A. vulneraria and three subspecies of A. montana, were obtained and analysed together with sequences of five other species of the genus obtained from GenBank. Our results suggest that the genus Anthyllis is not monophyletic and is divided in two main clades: the Anthyllis sensu strictu and the "tetraphylla clade". The former includes most of the Anthyllis species, and the latter includes three annual species more closely related to Lotus. All the taxa were also analysed according to seven chloroplast microsatellites, and these data closely confirm the results obtained with the ITS phylogeny.     

世界圆织蛾属研究（鳞翅目： 织蛾科）

在检查所有模式标本的基础上系统研究了世界圆织蛾属Eonympha Meyrick共6种,其中记述2个新种： 梵净圆织蛾Eonympha fanjingshana sp. Nov. 和突圆织蛾Eonympha basiprojecta sp. Nov.; 报道了1新组合 Eonympha hesperanthes (Meyrick);提供了新种和新组合种的成虫和外生殖器特征图;给出了该属世界已知种的分种检索表。新种的模式标本保存在南开大学生物系。