Scanning structure of spermatozoon of Moniezia expansa (Cyclophyllidea: Anoplocephalidae)

Surface structure of spermatozoon of cestoda Moniezia expansa was observed by using scanning electron microscopy. The mature spermatozoon of Moniezia expansa was filiform, tapered at both ends at lower magnification. Under high magnification, its surface structure was rope-like, caused by 25 to 45 degree spiral cortical microtubules around the sperm axis. Diversity of mature spermatozoa of cestoda in the Order Cyclophyllidea was discussed.国家自然科学基金(No·39900109);; 留学回国基金及华南农业大学校国际合作基金资助项目~

The Methods For Examination of Quality of Paecilomyces lilacinus Production Determination For the Colony Forming Unit

记述两种异带属绦虫新种：林鹬异带绦虫和矶鹜异带绦虫.对新种和形态作了较详细的描述，并与相似种类进行了图、表比较.The Paecilomyces lilacinus produced has biological control eFFects against nematodes parasitizing on many plants.The methods of examining its quality were studied.In view of absence of a quality control standard in China,the colony Forming units (CFU) were proposed as one of the most important parameters of the product′s quality, and was determined by the dilution plate method. The examination of 10 batches of specimens prepared demonstrated that the parameters 3.5×10 6 CFU/g specimen could reFlect the product′s quality, which is also in accordance with the technological requirements and peasant′s demands.ThereFore,it was recommended as an industrial standard of Paecilomyces lilacinus production.国家教委博士点基

On The Description of Two Species of Bird Cestodes From Yunnan, China

记述采自云南保山市张明山灰头鹦鹉及黄胸织布鸟肠道的两种绦虫：赛尼苛氏绦虫COTugnIASEI及雀形双子宫绦虫bIuTErInAPASErInA.这两种绦虫在我国的分布均为首次记录，且宿主均为新记录This paper reports two species of bird cestodes, namely (1) Cotugnia seni meggitt collected From Psittacula himalayana, and (2) Biuterina passerina Fuhrmann were First recorded in China, and their deFinitive bird hosts were also newly recorded From the world

2RUP_aR-2RRU并联机构性能分析与尺度优化

提出了一种新型面对称两移动两转动2RUPaR-2RRU并联机构，应用旋量理论分析其自由度，并确定了其运动特性。该机构可作为振动筛的本体结构。建立机构位置分析模型，得到位置逆解解析表达式；应用矢量法分析机构速度，得到输入、输出Jacobian矩阵，并据此分析了机构奇异位形；应用输入、输出传递指标评价机构运动和力传递性能，给出有效传递姿态工作空间和有效传递位置工作空间（Effective transmission positional workspace，ETPW）的定义和数值计算方法。以ETPW最大为目标，建立机构尺度参数约束优化模型，并应用差分进化算法求解该问题；给出了机构尺度优化设计实例。结果表明，模型和算法可行有效，优化后的机构ETPW明显增大

TWO NEW SPECIES of CESTODES GENUS HYMENOLEPIS(CYCLOPHYLLIDEA: HYMENOLEPIDIDAE)

本文记述膜壳科膜壳属绦虫二新种，即卷尾膜壳绦虫HyMEnOlEPISCHIbIAESP.nOV.和三宝鸟膜壳绦虫H.AbunduSSP.nOV.。卷尾膜壳绦虫标本采自福州的黑发冠卷尾CHIbIAHOTEnTOTAbrEVIrOSTrIS；三宝鸟膜壳绦虫标本采自福州的三宝鸟EurySTOMuSOrIEnTAlISAbunduS，均为肠道寄生虫。模式标本均保存于厦门大学寄生动物研究室。he present paper deals with two new species of the genus Hymenolepis belonging to the family Hymenolepididae, collected from birds in Fujian Province, China.Holotypes and paratypes are deposited in Parasitology Laboratory, Xiamen University (Measure in mm).Hymenolepis chibiae sp.nov. (Figs.14)Host Chibia hottentotta brevirostris.Location Small intestine.Location Fuzhou (26° 05′ N,119° 18′E),Fujian Province.Description Worm of small size.Strobila 5763 in length and 08070903 in maximum width.Genital pores regularly opening at anterior part of the lateral margin of the segment, inclined to the middle.Scolex, 01530167 in width and 01010103 in length; Rostellum, 00240033 in width and 00710080 in length, with 10 rostellar hooks, each hook measures 00350038 in length, likes a spanner.Suckers 4, roundish or elliptical, without spines, 00590067×00530060.Testes 3, elliptical, 01070121×00980104,arranged in triangle, two antiporal and one poral.Cirrus pouch, Pearshaped, 01370149 in length and 00580066 in width, with the bottom of the pouch crosses the ventral longitudinal excretory ducts.External seminal vesicle, 00990107 in length and 00510060 in width.Internal seminal vesicle, 00680077 in length and 00290035 in width.Female genital organs situated at the middle of the segment.Ovary, fanlike, with many branches along the edge.Vitelline gland compact, with fingerlike branches along the edge, posterior to ovary.Seminal receptacle pearlike 01570164 in length and 00690076 in width.Reproductive cavity obvious.Uterus, saclike, when fully gravid, over reaching excretory stems laterally.Eggs, 00390045×00290034.Oncospheres, 00210024×00130017.Length of embryo hooks.00100012.Discussion The new species resembles Hymenolepis fringillarum Rudolphi, 1809, but differs from the latter species mainly by the smaller size of the scolex, larger rostellar hook, smaller external seminal vesicle and larger reproductive cavity.Hymenolepis abundus sp.nov. (Figs.58)Host Eurystomus orientalis abundus.Location Small intestine.Locality Fuzhou (26° 15′N, 119° 18′E) , Fujian Province.Description Worm of small size, strobila 1850 in length and 08141022 in maximum width.Neck present, 01600185 in width and 02030224 in length.Immature proglottides.01860407×00180296; mature, 04230668×03070380;gravid, 07421022×03930401.A single set of reproductive organs per proglottid.Genital pore regularly opening at the middle of the lateral margin of the proglottid. Scolex, 02370263 in width and 01980202 length.Suckers 4, roundish or elliptical, without spines, 00790087×00860094; rostellar hooks 12, 00240026 in length.Testes 3, roundish, 01160118 in diameter, arranged in triangle, two antiporal.one poral.Cirrus pouch, pearshaped, 01310169 in length and 00390048 in width.External seminal vesicle, 01010123 in length and 00330042 in width.Internal seminal vesicle, 00870096 in length and 00290036 in width.Cirrus unspined, ordinarily don′t stretch out of the segment.Female genital organs situated at the median of the progolttid.Ovary declined fanshaped, with irregularly branches along the edge, part of the ovary overlap on the testes.Vitelline gland nearly roundish, edge regular or slightly irregular, posterior to ovary.Seminal receptacle long saclike or pearlike.01560068 in length and 00500068 in width.Uterus, when fully gravid, saddle saclike.Eggs, 00400045×00330038.Oncosphere, 00210024×00160019.Embryo hook, 00120014 in length.Discussion The new species resembles Hymenolepis serpentulus Schrank, 1788 but differs from the latter species mainly by the number of rostellar hooks, position of genital pore, size of seminal receptacl博士点基