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two genera
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  两属
     Some new characters are found based much evidence on gross-morphology, leaf epidermic anatomy, woods anatomy, cytology and cladistic analysis. The new infrageneric systems of Kadsura and Schisandra are revised and the relationships between the two genera and related groups are proposed.
     本文通过对五味子科及其近缘类群植物的形态性状、叶表皮解剖特征、木材解剖特征、细胞学以及分支系统学研究,发现了一些重要的新性状,提出了新的五味子属的次级划分,阐明了南五味子属与五味子属的属间系统学关系,以及它们与近缘类群间的系统学关系,最后对这两属进行了分类学修订。
短句来源
     The aim of the present study is to evaluate the separate genus status of Chaetoseris and Stenoseris to finally clarify the systematic relationship between these two genera and related ones, and to make a taxonomic revision based on evidence from macromorphology, anatomy, micro-characters, cytology and molecular study.
     本文通过对毛鳞菊属和细莴苣属及部分近缘属植物的形态性状、叶表皮特征、瘦果解剖特征和表面微形态特征以及细胞学等的研究及对该两属植物的生境和地理分布的分析,确认了毛鳞菊属和细莴苣属的独立地位,阐明它们与近缘属间的系统学关系,并对该两属进行了系统的分类学修订。
短句来源
     These micromorpho- logical characters may contribute as the additional evidence for the necessary restitution aswell as the diagnostic features of these two genera revised by Airy Shaw .
     这些微观性状提供由Airy Shaw重新恢复本两属的一个辅佐证据。
短句来源
     The classification and district of turbellarians in freshwater in Taibai National Forest Park was preliminary investigated from June 11 to June 26,1995.It was concluded that there is an amount of this sppcies of animal resource distributing over Taibai in Moutain Two genera in two families were founded.
     1995年6月11—26日,作者通过对太白山国家森林公园淡水涡虫的初步调查,认为这种动物资源在太白山有一定数量的分布,现已发现两科两属
短句来源
     The differences in distribution of these two genera are thought to be based on ecological preferences of the species, the species of Dryopteris being acidophiles mostly, While the species of Polystichum are mainly caciphiles.
     这两属的分布差异是基于物种的生态选择:鳞毛蕨属内多为喜酸性种类,而耳蕨属的种类主要是喜钙性植物。
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  “two genera”译为未确定词的双语例句
     Two genera ( Geissleria and Aneumastus ) and 6 other taxa ( Cymbella neuquina var. fastigata (Krasske) Krammer, Maidana et Villanueva, Cymbella perfossilis Krammer, Cymbella neocistula Krammer, Cymbella neocistula var. islandica Krammer, Cymbella subcistula Krammer, Gomphonema lippertii Reichardt et Lange-Bertalot) were recorded for the first time in China. These taxa were found in coring material (Late Pleistocene deposits) from the Jianghan Plain, Hubei Province.
     Li,2个中国新记录属:Geissleria和Aneumast us,6个中国新记录:Cymbella neuquina var.fastigata(Krasske)Krammer,Maidana et Villanueva,Cymbella perfossilis Krammer,Cymbella neocistula Krammer,Cym-bella neocistula var.islandica Krammer,Cymbella subcistula Krammer,Gomphonema lippertii Reichardt etLange-Bertalot。
短句来源
     ⑤ The establishment of two genera, Halocarpus and Lepidothamnus, is lent support;
     ⑤支持成立Halocarpus和Lepidothamnus属;
短句来源
     The family Schisandraceae (Magnoliales), consists of two genera, Schisandra and Kadsura.
     五味子科隶属木兰目(Magnoliales),分五味子属(Schisandra)和南五味子属(Kadsura)两个属。
短句来源
     8 new combination: Epacanthaclisis minanus (Yang), Epacanthaclisis maculates (Yang), Epacanthaclisis maculosus (Yang), Gatzara angulineura (Yang), Gatzara decorilla (Yang), Gatzara qiongana (Yang), Layahima validum (Yang), Layahima wuzhishanus (Yang). Two genera, Franzenia and Nepsalus, are recorded for the first time in China. A key to subfamilies of Myrmeleontidae and a key to tribes of Myrmeleontinae are provided.
     新组合为:闽溪蚁蛉Epacanthaclisis minanus (Yang)、小斑溪蚁蛉Epacanthaclisis maculates (Yang)、多斑溪蚁蛉Epacanthaclisis maculosus (Yang)、角脉锦蚁蛉Gatzara angulineura (Yang)、小华锦蚁蛉Gatzara decorilla (Yang)、琼花锦蚁蛉Gatzara qiongana (Yang)、强雅蚁蛉Layahima validum (Yang)、五指山雅蚁蛉Layahima wuzhishanus (Yang);
短句来源
     Two genera of freshwater Dinophyta newly recorded from China
     中国淡水甲藻两个新记录属
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  相似匹配句对
     Two.
     二、末日意识
短句来源
     TWO NEW GENERA OF PROTURA
     原尾目昆虫的两新属
短句来源
     Two.
     二.
短句来源
     TWO NEW GENERA OF ORCHIDACEAE FROM CHINA
     中国兰科二新属
短句来源
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  two genera
It was found that Chelon and Liza genera are paraphyletic, and therefore their division into two genera is unnatural and they should be synonymized.
      
The group Monostilifera was classified into two genera: Cratenemertea ord.
      
Fonscolombia is related to Phenacoccus Sign., the separation of these two genera is not clear.
      
This family comprises of two genera and six species, but the status of these taxa remains indistinct.
      
Reassessment of the suite of specimens used by William King when he erected the fenestrate bryozoan genus Thamniscus in 1849 has shown that they belong to two genera.
      
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The study of Chinese Araliaccae(including those of Taiwan)reveals the occurrence of 19 genera, 162 species, 47 varieties and 11 forms, of which many are new to science. Owing to the similarity in its fruit and embryo to the Mastixia of Cornaceae, the genus Diplopanax is excluded herewith from the Araliaceae.New phylogenetic relationships of the Chinese genera of this family have been proposed by the author, who is of the opinion that in the study of phylogenetic relationships, emphasis should be laid not only...

The study of Chinese Araliaccae(including those of Taiwan)reveals the occurrence of 19 genera, 162 species, 47 varieties and 11 forms, of which many are new to science. Owing to the similarity in its fruit and embryo to the Mastixia of Cornaceae, the genus Diplopanax is excluded herewith from the Araliaceae.New phylogenetic relationships of the Chinese genera of this family have been proposed by the author, who is of the opinion that in the study of phylogenetic relationships, emphasis should be laid not only on the characters of the reproductive organs, but also on those of the vegetative distinctions of the examined genera as well. There are no direct phylogenetic relationships between the two genera except that all the distinctive characters of one genus are more advanced than, those of the other.The facts that the Chinese genera and species are mainly distributed in the south-western China, especially in the province of Yunnan, where the primitive forms, such as Tupidanthus, Trevesia, etc. occur in luxuriance, leads the author to believe that Yunnan and its neighborhood is possibly the motherland of the Indo-Malay distribution area of the Araliaceae.

本文分为三个部分:第一部分简略的报导我国五加科植物研究的历史和屬、种数目,目前我国五加科植物共有19(?)、162种、47变种和11变型,这一数目不包括应屬山茱萸科的马蹄参屬(Diplopanax)在内。 第二部分讨论五加科屬间的亲缘关系,提出了我国五加科一个新的屬间亲缘关系的意见,并给出了示意图,作者认为研究植物屬间的亲缘关系,必须根据科学的进化倾向,探讨各方面的性质,包括植物体的性状在内,凡是两个亲缘关系密切的屬,如其一个屬虽具有较另一个屬许多较进化的性状,但只要这—个屬具有一个较另一屬稳定的原始性状,即不能认为这一个屬直接起源于另一个屬,在研究屬间亲缘关系时,如果只注意于自已论点有利的性质,忽视对自已论点不利的性状,就不可能找出正确的系统关系。 第三部分讨论我国五加科植物的水平分布和垂直分布,我国西南、尤其是云南,不但具有本科现存最原始的屬和种,种类也远较其他各地为多,又富有不少特产种,而且从地形和环境条件来说也有其特点,所以著者认为这一地区有可能是本科植物在印度——马来分布区的起源地。

In 1928 Curt demonstrated that non-human schistosome cercariae are capable of producing dermatitis in man. Since then many species of avian and mammalian schistosomes have been shown to produce similar disease in different parts of the world. In 1958 a kind of schistosome dermatitis locally known as 'Ya-Mu-Lan' (meaning duck-saliva-disease) was discovered in Foochow, Fukien Province. The infection occurred among farmers who waded in canals and ditches, while taking care of ducks in their natural environment....

In 1928 Curt demonstrated that non-human schistosome cercariae are capable of producing dermatitis in man. Since then many species of avian and mammalian schistosomes have been shown to produce similar disease in different parts of the world. In 1958 a kind of schistosome dermatitis locally known as 'Ya-Mu-Lan' (meaning duck-saliva-disease) was discovered in Foochow, Fukien Province. The infection occurred among farmers who waded in canals and ditches, while taking care of ducks in their natural environment. The same dermatitis was reported from Yung-siao district bordering Kwangtung. In Szechwan a similar disease was reported by T. C. Pap (1957) where it was known as 'Ya-Si-Feng' (meaning duck-feces-disease). From the endemic area in Foochow, 10, 145 snails belong to the species Lymnaea (Radix) plicatula Benson were examined and a kind of ocellated fork-tailed cercaria was discovered. Another closely related snail, Lymnaea (Fossaria) ollula Gould was also found infected but the incidence of infection was somewhat lower. Experiments were conducted to infect laboratory reared ducklings and full grown ducks, the feces of which were examined to be free from schistosome eggs. Ten to twelve days later edult worms were recovered in the mesenteric and portal veins and a few specimens were found in the lungs and heart. Lymnaea (Radix) plicatula were also experimentally infected with miracidia hatching out from eggs secured from the infected duck.Studies on the morphology of both the adult worms and the developmental larval stages were made and the details are reported in the present communication.Our observation indicates that the worm belongs to a species of Trichobilharzia different from any other known species. The name Trichobilharzia paoi sp. nov. is proposed after Prof. T. C. Pap of Chungking Medical College, Szechwan.Description of the adult worm:Male: Body slender, total length 5.35-7.31mm. width 0.076-0.095mm. Oral sucker measures 0.051-0.060ram×0.043-0.060mm in diameter. Ventral sucker, the surface of which is armed with small spines, measures 0.051-0.060mm in diameter. Oesophagus. bifurcates anterior to the ventral sucker at a distance about anterior two-thirds between oral sucker and acetabulum. Intestinal caeca iun posteriorly on two sides and reunite behind the gynaecophoric canal, which is a longitudinal slit 0.237-0.380mm in length and 0.123-0.152mm in width. Gynaecophoric canal is foimed by inward folding of two lateral sides of the body bearing numerous spines. Testes round, 70-90 in number arranged in a single longitudinal row. Their diameter ranges 0.051-0.064mm. Seminal vesicle occupies an area from a level immediately posterior to the ventral sucker to the fore margin of gyneacophoric canal. It measures 0.172-0.447mm in length and 0.038-0.055mm in width.Female: More delicate than male, length 3.38-4.89mm, greatest width 0.076-0.114mm. Oral sucker terminal with mouth openning on its ventral aspect, diameter 0.051-0.056mm×0.038-0.051mm. Ventral sucker, a small solid organ, measures 0.030-0.040mm×0.035-0.043mm in diameter. Oesophagus bifurcates at some distance before the acetabulum. Intestinal ceaca reunite behind the ovary, forming a single caecum passing to near the posterior end of body. Ovary spiral in shape with a length 0.253-0.352mm and a width 0.021-0.025mm. Seminal receptacle elongated in form, is connected to the ovary on its posterior aspect. A Laurer's canal is present. It originates from Seminal receptacle and opens to the exterior. The oviduct starts from the ovary, runs parallel with the vitalline duct to the anterior of ovary, where they unite together forming the ootype, surrounded on all sides by a cluster of unicellular Mehlis glands. The uterus is short and contains only one egg. Female genital pore is immediately postacetabular. Egg is spindle or elongate oval in shape with a sharp curved spine at one end. Egg measures 0.236-0.316mm×0.068-0.112mm. Avian schistosomes parasitising domestic and wild ducks and other birds belong to the subfamily Bilharziellinae Price, 1929, and family Schistosomatidae Looss, 1899. They were formerly considered to belong to two genera, namely Pseudobilharxiella Eismont, 1929 and Trichobilharzia Skrjabin and Zkharow, 1920. Yamaguti (1958) consideted Pseudobilharziella to be the synonym of Trichobilharzia and listed 22 species in his "Systema helminthum". Recent additions of some new species made up the total of about 25 species. In comparing the structure, it is found that the Chinese species belongs to those duck schistosomes with spindle-shaped eggs. Among them the most closely related is T. yokogawai (Oiso, 1927), from which it differs in several important aspects, such as the size of the worm, the extent of gynaecophoric canal, number of testes and size of eggs. Their different characters are tabulated as follows:T. yokogawai T. paoi n. sp. Male Body length 2.0-2.75mm 5.35-7.31mm (Foochow specimen)average 2.336mm 4.0-10.3mm (Chungking specimen) Position of immediately behind 0.371-0.495mm behind gynaecophoric Acetabulum acetabulum (Foochow specimen) canal 0.35-0.57mm behindacetabulum (Chungking specimen) T. yokogawai T. paoi n. spLength of 0.2mm 0.247-038mm (Foochow specimen)gynaecophoric 0.35-0.41mm (Chungking specimen)canalNumber of 50-70 70-90 (Foochow specimen)testes 50-85 (Chungking specimen)Size of eggs Length 0.204-0.238mm 0.236-0.316mmWidth 0.051-0.068mm 0.068-0.112mm (Foochow specimen)0.215mm0.075mm (Chungking specimen)From the above table it can be noticed that these two species can be distinguished by these essential differences.T. paoi is, furthermore, differentiated from T. physellae, another closely related species by the number of testes, which is about 210-240 in the latter and are arranged in two to three rows. Tanaka (1960) reported another duck schistosome from Oki Island, which he identified as T. physellae. According to this auther, the male has only 52-78 testes, the seminal vesicle is much shorter reaching only about half distance between gyaaecophoric canal and the acetabulum. Another striking difference is that the intestinal ceaca of T. physellae from Oki Island reunite at the region anterior to the seminal vesicle, while in T. paoi they reunite behind the Seminal receptacle at the level anterior to the gynaecophoric canal.Macfarlane (1944, 1949) and Olivier (1949) have shown that the dermatitis produced by avian schistosomes is a sensitization phenomenon. They have demonstrated striking differences in the reaction of skin of infected animals to the penetration of cercariae in the initial and subsequent infections, and presented evidence for the ideathat human cases also become increasingly allergic to the protein of invading schistosome cercariae. In order to make further inquiries on this problem and to investigate whether Chinese species of Trichobilharzia will induce similar reactions in the mammalean host, experiments were conducted to infect laboratory-reared white mice and biopsies made of the skin in the first and also after a series of repeated infections It is with the purpese to observe the behavior of the cercariae after having penetrated into the body of an abnormal host, and to trace the course of their migration and destiny.1. Tissue reaction in primary infection: Histological sections were made on biopsies on various intervals after infection, one and half hour, 3 hours, 5 hours, 8 hours, 21 hours etc. At one and half to three hours after exposure, the cercariae already penetrated the epidermis. Some of them were in the hair follicles. A few arrived at the corium. Those just penetrated Corneum stratum were found lying there horizontally, and usually there was a small tunnel or cavity, formed among the epithelial cells, surrounding each cercaria. Such phenomenon is similar to that as observed by Gordon and Griffiths (1951) on the behavior of the cercaria of Schistosoma mansoni. Olivier and Weinstein (1953) also observed the same in Trichobilharzia ocellata. During early hours of invasion there was apparently very little cellular response to the cercariae. Those, which invaded the corium, were surrounded by a small number of leucocytes. Apparently the cercariae were still in good condition. They were probably living at the time of biopsy as indicated by their intact cell structure being well stained, 21 hours after infection, the tissue shows more infiltration of white cells and histiocytes. More of them gathered around the cercariae, some of which appeared as having signs of histolysis, while others seem still quite normal. Observations made on tissues fixed at later hours after infection indicated that even in the primary exposure, great majority of the invading cercariae were already arrested and immobilized in the epidermis and not able to invade further into the body.A small part of the cercariae, however, were found to migrate to the lung tissue. They were evidently being carried by the blood stream to the new site, where they produced considerable tissue damage and hemmorrhage. In our experiments with mice infected 20 hours previously, petechial hemorrhages were present on the surface of the lung. Infection experiments were conducted on 19 mice, each of which was infected with 80 to 250 cercariae. Dissections of the animals were made at various intervals from one day to about a month since exposure. The largest number of worms and hemorrhagic spots were found on the lung tissue during the second and third day after infection. Of the 19 mice, 15 were found to show pulmonary lesions. The number for each mouse ranges from one to 86. From eleven of them, worms were recovered from the tissue and from each mouse from one to 15 worms were counted. When the dissections were made during the first three days, the worms were still living. As time elasped, only formation of nodules were found. Sectioned nodules contained worms which were either dead or moribund.2. Tissue reaction in repe

1.在福建省各地流行着一种称为“鸭姆涎”的血吸虫皮肤疹,特別在鸭群放牧的地区,农民下水,手足发痒。这种皮肤疹的病原,经調查系一种寄生于家鴨体內的新种血吸虫,定名为包氏血吸虫。Trichobilharzia paoi Sp. Nov. 2.本虫的雄虫及雌虫經詳細叙述。其寄居的位置也經确定以門靜脉为最多,其次为腸系膜靜脉,并在肺部及心脏也有寄居。3.本虫的中間宿主为两种椎实螺Lymnaea(Radix)plicatula Benson及Lymnaea(Fossaria)ollula Gould。4.发育各期均在实驗室內詳經現察,包括卵、毛蚴、母胞蚴、子胞蚴和尾蚴,及成虫名阶段的发育。各期的构造經詳細的叙述。尾蚴的习性也經观察和叙述。5.本虫的分类問题經詳細討論。6.尾蚴侵入实驗动物——小白鼠后所引起的組织反应,經详细研究。实驗曾經举行比較初次感染和重复感染后组织对于侵入的虫体所引起的不同程度的反应。实驗証明初次感染的,幼虫能侵入表皮、皮层及真皮,白血球浸潤的現象较为微弱,虫体在一两天內尚是存活?啻胃腥镜慕M織內反应较为强烈,白血球以及組織吞噬細胞包圍虫体的更多?嫣宓妮喞炔幻飨员硐植皇谴婊畹那榭觥N豺是秩胄“资筇迥...

1.在福建省各地流行着一种称为“鸭姆涎”的血吸虫皮肤疹,特別在鸭群放牧的地区,农民下水,手足发痒。这种皮肤疹的病原,经調查系一种寄生于家鴨体內的新种血吸虫,定名为包氏血吸虫。Trichobilharzia paoi Sp. Nov. 2.本虫的雄虫及雌虫經詳細叙述。其寄居的位置也經确定以門靜脉为最多,其次为腸系膜靜脉,并在肺部及心脏也有寄居。3.本虫的中間宿主为两种椎实螺Lymnaea(Radix)plicatula Benson及Lymnaea(Fossaria)ollula Gould。4.发育各期均在实驗室內詳經現察,包括卵、毛蚴、母胞蚴、子胞蚴和尾蚴,及成虫名阶段的发育。各期的构造經詳細的叙述。尾蚴的习性也經观察和叙述。5.本虫的分类問题經詳細討論。6.尾蚴侵入实驗动物——小白鼠后所引起的組织反应,經详细研究。实驗曾經举行比較初次感染和重复感染后组织对于侵入的虫体所引起的不同程度的反应。实驗証明初次感染的,幼虫能侵入表皮、皮层及真皮,白血球浸潤的現象较为微弱,虫体在一两天內尚是存活?啻胃腥镜慕M織內反应较为强烈,白血球以及組織吞噬細胞包圍虫体的更多?嫣宓妮喞炔幻飨员硐植皇谴婊畹那榭觥N豺是秩胄“资筇迥?有一部分能侵入肺部,产生出血斑点及結节。結节內有虫体凋炘^明首次感染的小白鼠侵入肺部的虫体,出血斑点及結节均更多,重复感染的逐次減少。多次重复感染后肺部找不到虫体或找到极少数的虫体和出血斑点。7.本文就实验的結果进行討論。

There are founded three species belonging to three different genera of the Echi-nostomes, from the intestine of the black stork (Ciconia migra Linnaeus) of China, namely Allechinostomum nigriciconiatum sp. nov., Chaunocephalus sinensis sp. nov., and Chaunocepholus ferox Dietz, 1909. The taxonomic position of the genera Allechinostomum Odhner, 1911 and Chaunocephalus Dietz, 1909 is discussed. Both genera are recorded for the first time not only from this locality, but also from East Asia. Keys to the species...

There are founded three species belonging to three different genera of the Echi-nostomes, from the intestine of the black stork (Ciconia migra Linnaeus) of China, namely Allechinostomum nigriciconiatum sp. nov., Chaunocephalus sinensis sp. nov., and Chaunocepholus ferox Dietz, 1909. The taxonomic position of the genera Allechinostomum Odhner, 1911 and Chaunocephalus Dietz, 1909 is discussed. Both genera are recorded for the first time not only from this locality, but also from East Asia. Keys to the species of the two genera are given in the Chinese text.1. Allechinostomum nigricicomatam sp. nov.Specific Diagnosis: Body lanceolated, 6.910-7.477 × 1.128-1.387 mm.. Spines limited in front of acetabulum. Head collar reniform, 0.430-0.457 mm in width. Collar spines 0.022-0.054 × 0.018 mm, 24 in number, arranged in a single row with a dorsal interval.Oral sucker terminal, 0.125-0.161 × 0.161-0.197 mm. Acetabulum oblong, situated in the anterior fourth of body. Prepharynx short, 0.027 mm. Pharynx trapezoid or ovoid, 0.170-0.214 × 0.179-0.197 mm. Oesophagus long, 0.842-0.931 mm, bifurcated in front of acetabulum. Caeca ended behind posterior testis. Testes tandem and smooth, anterior testis transversely oval, 0.433-0.466 × 0.573-0.716 mm, and posterior testis 0.466-0.716 × 0.555-0.609 mm. Cirrus sac oval, 0.412-0.555 × 0.251-0.305 mm, on right side of acetabulum. Internal seminal vesiele constricted into two portions. Ejaculatory duct long. Cirrus wanting. Ovary smooth, oval, 0.223-0.269 × 0.358-0.395 mm. Mehlis' glands situated between ovary and anterior testis. Vitellaria well developed, vitelline follicles occupying posterior half of body and forming two lateral groups behind posterior testis. Common vitelline duct in front of anterior testis. Uterus intercecal, about 6-8 loops, extending posteriorly to level of anterior testis. Ova numerous, oblong, deep-brown in color, 0.077-0.100 × 0.046-0.059 mm.This species is distinguished from the other species in the presence of post-ovarian uterine loops and distinguished from A. famelicum (Odhner, 1911) by (1) smaller collar spines, (2) position of vitellaria which begin from the level of the ovary, (3) smaller ova.Host: Black stork, Ciconia nigra Linnaeus. Location: Intestine.Locality. Nanyoa, Hunan Province, China. Date: January, 1948.Incidence and intensity of infection: 3 specimens from a black stork. Type and paratype specimens: Deposited in the Institute of Zoology, Academia Sinica.2. Chaunocephalus sinensis sp. nov.Specific Diagnosis: Body spoon-shaped, 4.85-6.60 × 0.636-1.750 mm. Spine 0.045 × 0.014 mm, scattered loosely in front of anterior level of acetabulum. Head collar 0.412-0.448 mm in width, bearing 27 collar spines in double rows. Corner spines 4 in number on each side, 0.077-0.109 × 0.018-0.023 mm. Oral sucker terminal, 0.150-0.182 × 0.136-0.173 mm. Prepharynx short, 0.072-0.077 mm in length. Pharynx ovoid, 0.168-0.186 × 0.096-0.132 mm. Oesophagus long, with many kteral diverticula, more than 10 on each side. Caeca terminated at posterior extremity and opening into excretory vesicle with uroproet. Acetabulum oval, 0.466-0.591 × 0.376-0.502 mm. Testes smooth, oval, parallel or slightly oblique in position. Left testis 0.269-0.403 × 0.179-0.287 mm, right testis 0.295-0.394 × 0.161-0.287 mm, with the former often slightly forward. Cirrus sac small, oblong, 0.223 × 0.099 mm, enclosing internal seminal vesicle (0.167 × 0.099 mm) and prostatic glands. Ovary smooth, oval, 0.448-0.645 × 0.358-0.518 mm. Mehlis' glands well developed, 0.305-0.466 × 0.537-0.645 mm. Vitellaria well developed, filling almost the whole body. Vitelline follicles arranged in transverse rows. Uterus short, mostly limited in between aeeta-bulum and gonads, consisting of about one hundred eggs. Ova oblong, brownish, operculated, 0.070-0.108 × 0.059-0.073 mm.This species is distinguished from C. ferox by: (1) the vitelline follicles being arranged in transverse rows and extending to the posterior extremity, (2) the corner spines being smaller, and (3) the width of the egg greater

在我国乌鹳(Ciconia nigra Linnaeus)的肠内找到三种棘口类吸虫,为乌鹳异棘口吸虫、新种(Allechinostomum nigriconiatum sp.nov.),中国肿头吸虫、新种(Chaunocephalus sinensis sp.nov.),肿头吸虫(Chaunocephalus ferox Dietz,1909)。对两个新种作了描述。 乌鹳异棘口吸虫、新种与该属的其他各种主要区别在具有卵巢后子宫环盘曲。中国肿头吸虫、新种与肿头吸虫的区别主要在卵黄腺滤泡呈横行排列,分布向后达体后部、角棘较小等特征,并与该属的其他种也作了比较。肿头吸虫属种的发现不但在我国而且在东亚均为首次。 文内对异棘口吸虫属(Allechinostomum Odhner,1910) 与肿头吸虫属(Chaunocephalus Dietz,1909)的分类位置各作了论述,并均列有种的检索表。

 
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