中国复殖吸虫凸腹科两新记录属并重新描述（英文）

在中国南海的矛尾翻车鲀(Masturus lanceolatus)中发现了两种复殖吸虫,Accacoelium contortum(Ruldolphi,1819)和Accacladocoelium petasiporum(Odhner,1928),它们隶属于凸腹科(Accacoeliidae Odhner,1911),这两种复殖吸虫的子宫走向和以前的描述不同,对它们的形态进行了重新描述。另外,研究中的A.contortum是在宿主肠道中发现,而不是如从前记录的发现在宿主的鳃上。这两种虫及其所在的属都是首次在中国发现和报道。     

我国淡水鱼首次发现的体外寄生复殖吸虫——微黄鳞居吸虫(鳞居科,新科)新属新种

复殖吸虫是体内寄生的扁形动物,很多寄生虫学者常把体内寄生作为区分复殖吸虫目与单殖吸虫目的特征之一。但在复殖吸虫目中,亦有少数例外营体外寄生的。目前世界上发现的体外寄生复殖吸虫有三个科(Yamaguti,1971):横形科(Transversotrematidae Yamaguti,1954)、连肠科(Syncoeliidae Odhner,1929)和囊双科(Didymozoidae Poche,1907)。除囊双科外,余二科仅包括少数种类。囊双科和连肠科吸虫主要寄生在海水鱼类的鳃部     

鱼类复殖吸虫三新种记述

鱼类复殖吸虫三新种记述冯伟,王伟俊（中国科学院水生生物研究所,武汉４３００７２）关键词复殖吸虫新种,牛首科,同盘科,发状科,鱼类寄生吸虫作者在整理鱼类寄生复殖吸虫中,发现有３个分属于牛首科、同盘科和发状科的种类,经鉴定为新种,现分别描述如后。模式标本...     

窄口螺侧殖吸虫的发育史及早熟现象

1.本文描述从福州闽江泥滩采集的图氏窄口螺体中发现一新种侧殖吸虫,定名为窄口螺侧殖吸虫(Asymphylodora stenothyrae sp.nov.)并与其他相近虫种作详细比较。2.窄口螺侧殖吸虫的生活史各期发育经详细观察,本文简单介绍其各发育期形态特征。3.本文对窄口螺侧殖吸虫早熟现象及其他吸虫类的提早发育现象进行讨论,并将复殖吸虫亚纲曾经发现有提早发育现象的虫种及其中间宿主列表比较。我们的结论:早熟现象在吸虫类中是相当普遍的一种现象。       

窄口螺侧殖吸虫的发育史及早熟现象

1．本文描述从福州闽江泥滩采集的图氏窄口螺体中发现一新种侧殖吸虫,定名为窄口螺侧殖吸虫(Asymphylodora stenothyrae sp.nov．)并与其他相近虫种作详细比较。2．窄口螺侧殖吸虫的生活史各期发育经详细观察,本文简单介绍其各发育期形态特征。3．本文对窄口螺侧殖吸虫早熟现象及其他吸虫类的提早发育现象进行讨论,并将复殖吸虫亚纲曾经发现有提早发育现象的虫种及其中间宿主列表比较。我们的结论：早熟现象在吸虫类中是相当普遍的一种现象。     

两种类型卫氏并殖吸虫对猴的寄生适应性的比较研究

自发现卫氏并殖吸虫存在二倍体和三倍体两种类型以来,有关它们对不同动物宿主及人体的致病性及其机理的研究报告已见陆续发表。本文报告两种类型卫氏并殖吸虫对恒河猴和短尾猴的寄生适宜性和致病性的实验研究结果,试图为阐明两型卫氏并殖吸虫的致病机理提供依据。     

额尔齐斯河白斑狗鱼假尾复口吸虫的分子鉴定

利用分子生物学方法对采自额尔齐斯河（中国段）的白斑狗鱼（Esox lucius Linnaeus）晶状体内寄生的复口吸虫（Diplostomum）进行了种类鉴定,结果显示其种类为假尾复口吸虫（D.paracaudum）,为中国新记录种。通过PCR扩增待鉴定种的部分18S-ITS1-5.8S序列,测序后与GenBank中假尾复口吸虫的序列进行比对,发现其相似度达到99.6%。将该序列与7种复口吸虫的ITS1序列进行比对后构建系统进化树,进化树以单殖吸虫Gyrodactylus parvae为外类群,结果显示:待鉴定种与假尾复口吸虫（D.paracaudum）聚为一支,其支持率达到了50%以上,支持它们为同一虫种。     

异盘并殖吸虫在小鼠体内发育及宿主转换的研究

在我国,引起人体患病的并殖吸虫有卫氏并殖吸虫(Paragonimus westermani)、斯氏狸殖吸虫(Pagumogo-nimus skrjabini)以及尚未引起人们足够重视的异盘交殖吸虫(Paragonimus heterotremus)三种。自从1965年广西那坡县发现异盘并殖吸虫疫源地和一例痰中查见虫卵的患者以来,泰国、老挝等地也分别报告了该虫引起游走性皮下结节与在肺内检获成虫的病例。异盘并殖吸虫对人体的致病性、宿主关系及传播方式等问题,引起了人们的关注。近年来,卫氏并殖吸虫和斯氏狸殖吸虫在非正常宿主体内的发育及宿主转换的研究,日趋深入。研究结果表明,此两种并殖吸虫病均可由转续宿主介导或经宿主转换而传播。异盘并殖吸虫在这方面的研究,迄今尚未涉及。为此,我们以小鼠为动物模型,进行了宿主转换的研究。     

鄱阳湖鱼类的寄生吸虫Ⅰ.独睾科(Monorchiidae)吸虫三新种记述

作者自1975年以来,陆续从鄱阳湖及赣江下游采集了一些鱼类寄生吸虫。经鉴定,独睾科(Monorchiidae Odhner,1911)中侧殖类吸虫计6种,除日本东方侧殖吸虫(Orien-totrema japonica Yamatuti,1938)、中华东方侧殖吸虫(O.siensi Want et Pan,1964)和     

我国内陆水体单殖吸虫的宿主特异性分析

报道我国内陆水体单殖吸虫的宿主特异性的研究。研究表明单殖吸虫有很强的宿主特异性,但不同种类的特异的有很大的判别。从目前已有的记录来看,６０％以上的单殖吸虫中只有１种宿主,约７５％的单殖吸虫的宿主仅为１属,超过９７％的单殖吸虫的宿主在１科之内。没有１种单殖吸虫可生于超过３个料的宿主中,但大钩指环虫可在２３属３３种宿主中寄生。在科和发放持异性水平,以锚首虫科和指环虫科单殖吸虫的特异性较强,三代虫科次之     

A NEW SPECIES OF RUNCINELLA ODHNER, 1924 (GASTROPODA: OPISTHOBRANCHIA) FROM THE GALAPAGOS ISLANDS

Runcinella thompsoni new species (Gastropoda: Opisthobranchia)is described on the basis of material collected in the GalapagosIslands. This new species differs from R. zelandica Odhner,1924, both in colour, reddish in the former, dark green withwhite freckles in the latter, and radular tooth morphology,mainly the first lateral teeth. The species is also comparedwith other red runcinids both from Atlantic and Pacific localities. (Received 28 October 1991; accepted 4 January 1993)     

Descriptions of Wardula bartolii n. sp. (Digenea: Mesometridae) and three newly recorded accidental parasites of Boops boops L. (Sparidae) in the NE Atlantic

Four species of digeneans parasitic in the bogue Boops boops from the Spanish coast of the NE Atlantic are described. All are new records for this host, but one species is new and the other three are considered to be accidental parasites. Wardula bartolii n. sp. (Mesometridae) is distinguished from its two congeners on the basis of a range of morphometrical features, such as the post-ovarian extent of the uterus, the relative length of the attachment organ, the position of the pharynx and vitelline fields, and the absence of anterior caecal diverticula. The other three species are Lecithaster confusus Odhner, 1905, Aponurus laguncula Looss, 1907 (Lecithasteridae) and Accacladium serpentulum Odhner, 1928) (Accacoeliidae).     

Endosymbioses between bacteria and deep-sea siboglinid tubeworms from an Arctic Cold Seep (Haakon Mosby Mud Volcano, Barents Sea)

Siboglinid tubeworms do not have a mouth or gut and live in obligate associations with bacterial endosymbionts. Little is currently known about the phylogeny of frenulate and moniliferan siboglinids and their symbionts. In this study, we investigated the symbioses of two co-occurring siboglinid species from a methane emitting mud volcano in the Arctic Ocean (Haakon Mosby Mud Volcano, HMMV): Oligobrachia haakonmosbiensis (Frenulata) and Sclerolinum contortum (Monilifera). Comparative sequence analysis of the host-specific 18S and the symbiont-specific 16S rRNA genes of S. contortum showed that the close phylogenetic relationship of this host to vestimentiferan siboglinids was mirrored in the close relationship of its symbionts to the sulfur-oxidizing gammaproteobacterial symbionts of vestimentiferans. A similar congruence between host and symbiont phylogeny was observed in O. haakonmosbiensis: both this host and its symbionts were most closely related to the frenulate siboglinid O. mashikoi and its gammaproteobacterial symbiont. The symbiont sequences from O. haakonmosbiensis and O. mashikoi formed a clade unaffiliated with known methane- or sulfur-oxidizing bacteria. Fluorescence in situ hybridization indicated that the dominant bacterial phylotypes originated from endosymbionts residing inside the host trophosome. In both S. contortum and O. haakonmosbiensis, characteristic genes for autotrophy (cbbLM) and sulfur oxidation (aprA) were present, while genes diagnostic for methanotrophy were not detected. The molecular data suggest that both HMMV tubeworm species harbour chemoautotrophic sulfur-oxidizing symbionts. In S. contortum, average stable carbon isotope values of fatty acids and cholesterol of -43 per thousand were highly negative for a sulfur oxidizing symbiosis, but can be explained by a (13)C-depleted CO(2) source at HMMV. In O. haakonmosbiensis, stable carbon isotope values of fatty acids and cholesterol of -70 per thousand are difficult to reconcile with our current knowledge of isotope signatures for chemoautotrophic processes.     

ANATOMY OF PSEUDOTRITONIA THIELE, 1912 AND NOTAEOLIDIA ELIOT, 1905 (GASTROPODA: OPISTHOBRANCHIA: NUDIBRANCHIA) FROM SIGNY ISLAND, ANTARCTICA

Several species of nudibranch molluscs are abundant amongstthe rich benthic hard substratum communities found close tothe British Antarctic Survey base at Signy Island, in the Atlanticsector of the Antarctic. Over the austral summer 1992/1993,two of the authors (LWB and DKAB) were able to collect someof the lesser known species of Nudibranchia at depths between3 and 40 metres, using SCUBA. New information on morphologyand anatomy of two of these species, Pseudotritonia gracilidensOdhner, 1944 (Charcotiidae, Arminoidea) and Notaeolidia gigasEliot, 1905(Notaeolidiidae, Aeolidoidea) are presented in thispaper. The validity of the species Notaeolidia gigas is strengthened. (Received 9 February 1994; accepted 18 September 1994)     

长江中游鱼类的复殖吸虫Ⅰ.鲟拟动殖吸虫(动殖科)新属、新种的描述

从1981到1983年,作者等曾多次在湖北省宜都县和黄冈县团风镇两地,从事长江中游鱼类寄生吸虫的调查研究。在70多种鱼中,获得了一批吸虫标本,将陆续整理后发表。本文首先报告在中华鲟Acipenser sinensis Gray中发现的动殖科Zoogonidae Odhner,1911一新属、新种吸虫。       

家鸭棘缘属吸虫两新种：（复殖目：棘口科）

从湖南两地的家鸭水肠中采集到２新种细小吸虫、经鉴定为：湘中棘缘吸虫,新种Ｅｃｈｉｎｏｐａｒｙｐｈｉｕｍ ｘｉａｎｇｚｈｏｎｇｅｎｓｅ ｓｐ．ｎｏｖ．,前宽后狭尖,头棘４１－４２,角刺４枚,子宫中卵１－３枚。隆回棘缘吸虫,新种Ｅｃｈｉｎｏｐａｒｙｐｈｉｕｍ ｌｏｎｇｈｕｉｅｎｓｅ ｓｐ．ｎｏｖ．,舌形,头棘３９枚,子宫中卵１－１２枚。新种与近似种的主要特征进行了比较,讨论了建立新种的依据。     

Descriptions of Wardula bartolii n. sp. (Digenea: Mesometridae) and three newly recorded accidental parasites of Boops boops L. (Sparidae) in the NE Atlantic

Four species of digeneans parasitic in the bogue Boops boops from the Spanish coast of the NE Atlantic are described. All are new records for this host, but one species is new and the other three are considered to be accidental parasites. Wardula bartolii n. sp. (Mesometridae) is distinguished from its two congeners on the basis of a range of morphometrical features, such as the post-ovarian extent of the uterus, the relative length of the attachment organ, the position of the pharynx and vitelline fields, and the absence of anterior caecal diverticula. The other three species are Lecithaster confusus Odhner, 1905, Aponurus laguncula Looss, 1907 (Lecithasteridae) and Accacladium serpentulum Odhner, 1928) (Accacoeliidae).     

A review of the genus Serangium Blackburn (Coleoptera, Coccinellidae) from China

The genus Serangium Blackburn from China is reviewed. The genus Catanella Miyatake is removed from synonymy with Serangium. Serangium baculum Xiao is transferred to Catanella, as Catanella baculum (Xiao), comb. n. Twelve species of Serangium are described, keyed and illustrated, including eight new species, Serangium magnipunctatum Wang & Ren, sp. n., Serangium trimaculatum Wang & Ren, sp. n., Serangium centrale Wang & Ren, sp. n., Serangium leigongicus Wang & Ren, sp. n., Serangium latilobum Wang & Ren, sp. n., Serangium digitiforme Wang & Ren, sp. n., Serangium dulongjiang Wang, Ren & Chen, sp. n., and Serangium contortum Wang & Ren, sp. n.Serangium punctum Miyatake is newly recorded from China.     

Reevaluation of the systematic status of Cotylotretus grandis (Digenea: Psilostomidae) with new morphological data

The digenetic trematode Cotylotretus grandis is redescribed on the basis of 130 specimens recovered from the body cavity and small intestine of 5 roseate spoonbills Ajaia ajaja (Aves, Ciconiiformes, Threskiornithidae) captured in the Pantanal do Mato Grosso, Brazil. The spoonbill A. ajaja is the only host recorded for specimens of C. grandis since 1819, when the species was proposed by Rudolphi as Distoma grande. The synonymy of Mesaulus Braun, 1902, with Cotylotretus Odhner, 1902, is discussed and confirmed after morphological analysis of the specimens.