虎纹捕鸟蛛卵巢发育的组织学

根据卵巢的组织学和形态特征分析,虎纹捕鸟蛛的卵巢为若干由生殖上皮向卵巢腔内突起的卵巢小体构成.在卵细胞发育过程中,一直有滋养细胞形成的托柄向其供应养分.卵巢发育可分为5个时期：形成期、生长期、成熟期、排卵期和恢复期.在生殖季节里可多次产卵,为多次产卵类型.卵巢的大小重量与蛛体重量成正相关,而成熟的蜘蛛性腺指数仅随卵细胞的发育而变化,不随蛛体大小改变.     

虎纹捕鸟蛛雌蛛粗毒的毛细管区带电泳分离分析

采用毛细管区带电泳（ＣａｐｉｌａｒｙＺｏｎｅＥｌｅｃｔｒｏｐｈｏｒｅｓｉｓ,简称ＣＺＥ）模式,以虎纹捕鸟蛛（Ｓｅｌｅｎｏｃｏｓｍｉａｈｕｗｅｎａ）雌蛛粗毒为样品进行电泳分离分析．对电泳缓冲溶液的ｐＨ、浓度以及有机试剂和两性离子添加剂的加入对粗毒分离的影响作了研究．结果表明,粗毒在ｐＨ１１．５,７５ｍｍｏｌ／Ｌ的磷酸盐缓冲液中可以得到最佳的分离．两性离子添加剂（三甲基氨基丙磺酸）能明显改善分离效果;并在实验中确定了虎纹毒素－Ｉ（Ｈｕｗｅｎｔｏｘｉｎ－Ｉ,简称ＨＷＴＸ－Ｉ）和虎纹凝集素－Ｉ（Ｓｅ－ｌｅｎｏｃｏｓｍｉａｈｕｗｅｎａｌｅｃｔｉｎ－ｌｉｋｅｐｅｐｔｉｄｅ－Ｉ,简称ＳＨＬＰ－Ｉ）在粗毒电泳图谱中的位置．     

虎纹捕鸟蛛的生物学特性

简要介绍了虎纹捕鸟蛛的生物学特性,包括它的形态特征、生活习性、捕食行为和食谱,以及生长特点和繁殖习性等.     

虎纹捕鸟蛛(蜘蛛目:狒蛛科:捕鸟蛛亚科)的分类研究

研究了狒蛛科 (Theraphosidae)虎纹捕鸟蛛SelenocosmiahuwenaWangetal.,1993的分类地位 ,认为该种应隶属于捕鸟蛛亚科OrnithoctoninaePocock,1895的捕鸟蛛属OrnithoctonusPocock,1892。对虎纹捕鸟蛛Ornithoctonushuwena(Wangetal.,1993)进行了重新描述和图示     

虎纹捕鸟蛛（Selenocosimia huwena）粗毒对蟾蜍神经肌肉接头传递的影响

１０－５～１０－４ｇ／ｍｌ虎纹捕鸟蛛粗毒对蟾蜍坐骨神经肌肉标本有阻遏作用，１×１０－４ｇ／ｍｌ粗毒发生阻断的时间为３８ｍｉｎ，但不改变神经干动作电位，不影响肌肉对直接刺激的反应。阻断后肌肉对间接强直刺激仍可发生强直收缩；粗毒对蟾蜍坐骨神经肌肉标本的阻断作用表现为：初期４～５０秒的收缩增强继而转向抑制；粗毒可对抗箭毒的阻断作用；蟾蜍在体坐骨神经肌肉标本可被粗毒阻断，但阻断后可以恢复；粗毒不改变蛙腹直肌对Ａｃｈ的敏感性，粗毒中含有拟胆碱成份。箭毒可以阻止粗毒对蛙腹直肌的拟胆碱效应；该粗毒对蟾蜍坐骨神经肌肉标本的阻遏作用发生在神经肌肉接头，粗毒中含有拟胆碱组份，此组份可能通过后膜去极化阻断神经肌肉接头。     

Movement behavior of a spider on a horizontal surface

Studying the locomotive behavior of animals has the potential to inspire the design of the mechanism and gait patterns of robots ("bio-inspired robots"). The kinematics characteristics of a spider (Ornithoctonus huwena), including movement of the legs, movement of the center of mass (COM) and joint-rotation angle, were obtained from the observation of locomotion behaviors recorded by a three-dimensional locomotion observation system. Our results showed that one set of the stance phase consists of four legs, which were leg-1 and leg-3 on one side and leg-2 and leg-4 on the other side. Additionally, two sets of the stance phase comprised eight legs alternately supporting and driving the motion of the spider’s body. The spider primarily increased its movement velocity by increasing stride frequency. In comparison to other insects, the spider, O. huwena, has superior movement stability. The velocity and height of COM periodically fluctuated during movement, reaching a maximum during alternation of leg phase, and falling to a minimum in the steady stance phase. The small change in deflection angle of the hind-leg was effective in driving locomotion, whereas each joint-rotation angle of the fore-leg changed irregularly during locomotion. This research will help in the design of bio-inspired robots, including the selection of gait planning and its control.