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本文记述采用贵州省雷公山自然保护区的绳蚋一新种,即苗岭蚋Simulium(Gomphostilbia)miaolingense spnov.该新种具有雄虫后足基跗节膨胀和蛹茧无前中突等合并特征,且其两性尾器构造特殊,包括雄性生殖腹板基侧突,中骨短宽;雌性生殖板肉缘分离而外展,生殖义突两后臂具骨化小侧突,可与其它近缘种相区别。模式样本存放于贵阳医学院。 相似文献
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本文记述采自贵州省雷公山自然保护区的绳蚋一新种 ,即苗岭蚋 Simulium(Gomphostilbia) miaolingense sp.nov.该新种具有雄虫后足基跗节膨胀和蛹茧无前中突等合并特征 ,且其两性尾器构造特殊 ,包括雄性生殖腹板基侧突 ,中骨短宽 ;雌性生殖板肉缘分离而外展 ,生殖义突两后臂具骨化小侧突 ,可与其它近缘种相区别。模式标本存放于贵阳医学院。 相似文献
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对宁夏回族自治区蚋类进行分类区系调查,初步摸清该自治区代表性地区蚋相本底资料。方法:选择宁夏7个不同生境的采集点,采用常规方法采集幼蚋,经隔离培养出两性成虫,制片、鉴定、编制名表并进行相关讨论。结果:记载宁夏回族自治区蚋属5亚属13种,其中含4个新种。结论:宁夏回族自治区具有蚋类多样性及明显的古北界区系特征。 相似文献
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对青海省蚋类进行初步分类区系调查,摸清该省代表性地区的蚋类区系分布。方法:选择青海省6个不同生境的代表性地区,采用常规方法采集幼蚋,经隔离培养育出成虫,制片、鉴定、编制名表并进行相关讨论。结果:记载青海省蚋科3属(畦克蚋属、后克蚋属、蚋属)共20种,其中含9个新种。结论:青海省具有蚋类多样性及明显地方性,反映了古北界区系特征并具有东洋界和古北界过渡性的区系特征。 相似文献
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记述采自贵州省小蹦蝗属一新种,即赤水小蹦蝗Pedopodisma chishuiensis sp.nov.该新种近似于佛坪小蹦蝗Pedopodisma fopingensis Zheng et Huo,主要区别为:1)复眼纵径为眼下沟长的1.4(♀)~2(♂)倍;2)前翅不到达中胸背板后缘(♂)或到达中胸背板后缘(♀);3)雄性下生殖板短锥形,顸尖;4)雌性下生殖板后缘中央具一个三角形突出.文中并附有中国小蹦蝗属分种检索表.模式标本保存于陕西师范大学动物研究所. 相似文献
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Ichthyosaur from Guizhou, China 总被引:9,自引:0,他引:9
Chun Li 《科学通报(英文版)》1999,44(14):1329-1329
A new ichthyosaur is named and described on the basis of two well-preserved skeletons from the Late Triassic Wayao Member
of Falang Formation, Guizhou Province, southwestern China. The specimens represent a longipinnate ichthyosaur with a set of
characters transitional from the Triassic forms to the Jurassic forms. It is similar to shastasaurids of the Triassic in the
relative size and shape of the limbs but resemblesOphthalmosaurus andBaptanodon of the Jurassic in the shape of the skull. The new taxon differs from all other ichthyosaurs found in China in its unusual
large orbit, distinct rostrum, and the hind limbs, that are slightly stronger than the fore ones. 相似文献
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A new cyamodontoid placodont is named (Psephochelys polyosteoderma gen. et. sp. nov.) and described based on a three-dimensionally preserved specimen. The material comes from the Wayao Member of the Falang Formation (Carnian, Late Triassic) in Guizhou Province, southwestern China. The skull of Psephochelys shows a unique combination of characteristics observed in Psephoderma and Placochelys, and the carapace is diagnostic of a new taxon as well. The ventral dermal armor of Psephochelys differs from all other known cyamodontoids in that it comprises irregular marginal osteoderms in loose contact with each other, and gastralia between them. The cranial suture pattern is in part difficult to analyze due to apparent co-ossification of elements, or poor delimitation of sutures.This affects primarily the demarcation of the nasal from the prefrontal, and the relation between the anterior part of the parietal, posterior ends of the frontals, and postfrontals.However, the postfrontal appears to enter the anteromedial margin of the upper temporal fenestra, a characteristic otherwise known from Placodus, but not from other cyamodontoids. However, given the difficulties of interpretation of this skull, additional material is required to unequivocally assess some details of the pattern of cranial sutures. 相似文献
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对茂兰自然保护区蚱总科昆虫进行了初步研究,经鉴定共有7种,其中有1新种——荔波波蚱Bolivaritettix liboensis.模式标本保存于陕西师范大学动物研究所昆虫标本室. 相似文献
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茂兰自然保护区蚱总科昆虫的初步调查 总被引:1,自引:0,他引:1
对茂兰自然保护区蚱总科昆虫进行了初步研究,经鉴定共有7种,其中有一新种荔波波蚱Bolivaritettixliboensis.模式标本保存于陕西师范大学动物研究所昆虫标本室. 相似文献