中国牙甲科三新记录种

报道采自新疆的我国首次发现的牙甲科昆虫3种,直缘隆胸牙甲Paracymus aeneus(Germar)、褐苍白牙甲Enochrus fuscipennis(Thomson)、暗须苍白牙甲Enochrus testaceus Fabricius,研究标本保存于中山大学生物博物馆.     

中国牙甲科二新记录种

报道我国南方牙甲科2新记录种:锚丽阳牙甲Helochares atropiceus Régimbart和线纹梭腹牙甲Cercyon lineolatus(Motschulsky)。     

中国牙甲科二新记录种

本文记述中国阿牙甲属Ａｇｒａｐｈｙｄｒｕｓ二新记录种,即科氏阿牙甲Ａ．ｋｅｍｐｉ（ｄ’Ｏｒｃｈｙｍｏｎｔ）和库氏阿牙甲Ａ．ｃｏｏｍａｎｉ（ｄ’Ｏｒｃｈｙｍｏｎｔ）,并认为前人所记载的东方阿牙甲Ａ．ｏｒｉｅｎｔａｌｉｓ（ｄ’Ｏｒｃｈｙｍｏｎｔ）可能为科氏阿牙甲的同物异名。     

中国牙甲总科长须甲属昆虫志

我国鞘翅目牙甲总科长须甲属(Hydraena)的昆虫,向来很少纪錄,以前先后发现的,只有两种,一种是1913年纪錄的Hydraena sauteri Orchym.,分布於台湾,一种是1939年纪錄的H.yunnanensis Pu,分布於云南。1939年以后,由我国各地陆续采集了不少这一属的昆虫,现将这些昆虫,加以分类整理,使对於这一属的昆虫在我国境内的分布,得到进一步的了解。     

中国牙甲属Hydrophilus Geoffroy分类订正(鞘翅目:牙甲科)

对中国牙甲属Hydrophilus已知且有标本的种类进行了重新描述,编制了除卵形牙甲H.olivaceus Fabricius外的分种检索表。点腹牙甲H.sternitalis(Reitter)在我国的分布记录(除新疆外)为错误的鉴定。H.sternitalis(Reitter)应该被认为是宽跗牙甲H.piceus(Linnaeus)的异名。     

我国刺鞘牙甲属四新种(鞘翅目：牙甲科)

我国的刺鞘牙甲属BerosusLeach昆虫前人共记载过4种,包括在两个亚属内,即：费氏刺鞘牙甲B.（Enoplurus）fairmaireiZaitz．、印度刺鞘牙甲B.（E．）indicusMotsh．、路氏刺鞘牙甲B.（E．）lewisiusSharp和柔毛刺鞘牙甲从（s．str．）pulchellusM'Leay。本文增加4新种,即齿腹刺鞘牙甲B.（s．str．）dentatisWuetPu,黄氏刺鞘牙甲B.（E．）huangiJiaetPu,云南刺鞘牙甲B.（E．）yunnanensisJiaetPu和黑背刺鞘牙甲B.（E．）atrodorsusJiaetPu。全部模式标本保存于中山大学昆虫学研究所。我国刺鞘牙甲属BerosusLeach种检索表l（4…     

中国毛腿牙甲属的分类研究：鞘翅目：牙甲科

本文记述了中国毛腿牙甲属１１种,其中有３新种,即黄褐毛腿牙甲Ａｎａｃａｅｎａａｔｒｉｆｌａｖａ,拟云云南毛腿牙甲Ａ．ｐｓｅｕｄｏｙｕｎｎａｎｅｎｓｉｓ和海南毛腿牙甲Ａ．ｈａｉｎａｎｅｎｓｉｓ。并制作了分种检索表。     

中国牙甲科一新种——蒲氏点纹牙甲Dactylosternum pui sp.nov.（鞘翅目：牙甲科：陆牙甲亚科）

描述采用广西那坡的牙甲科昆虫一新种,蒲氏点纹牙甲Dactylosternum pui sp.nov.正模♂,广西那坡弄化,550m,1998,Ⅷ．15。新种与科氏点纹牙甲Dactylostermum corbetti Balfour=-Browne相似,区别为：新种为红褐色;头、前胸背板和鞘支翅无细网纹;前胸腹板中部呈很强的屋脊状,具隆脊,隆脊前端具一长齿突,新种与道氏点纹牙甲Dactylosternum dohertyi Balfour-Browne的区别为：前胸腹板中部强屋脊状,具隆脊,隆脊前端具一长齿突,雄性外生殖不同,新种与密刻点纹牙甲Dactylosternum denspunctatum d′Orchymont区别为：前胸腹板中部强屋脊状,具隆脊,隆脊前端具一长齿突,中足脚节具密拒水毛,雄性外生殖器不同,模板标本存于中国科学院北京动物研究所。     

中国牙甲总科滨甲属昆虫志

我国鞘翅目牙甲总科滨甲属(Ochthebius)的昆虫,1939年以前的记录,只有3种。1939年以后,由我国各地陆续采集了不少这一属昆虫,现将本属的昆虫进行分类学的研究,使能进一步了解我国滨甲属昆虫的种类和分布。 截至目前止,发现的滨甲属昆虫共有12种,1亚种,分隶6个亚属。     

毛牙甲科在中国的首次发现及凹缘角牙甲再描述(鞘翅目,牙甲总科,毛牙甲科)

报道中国鞘翅目1新纪录科1新纪录种,即毛牙甲科Spercheidae和凹缘毛牙甲Spercheus emarginatus(Schaller).共计2头雄性和1头雌性采自黑龙江密山,对其进行了再描述.该虫已知分布于欧洲中西部和南部、俄罗斯南部和远东地区、亚洲中部和东部区,目前仅在中国东北地区发现.     

On the Knowledge of Coprophilus (Zonyptilus) pennifer (Motschulsky, 1845) and Coprophilus (Zonyptilus) marginalis (Reitter, 1894) (Coleoptera,Staphylinidae)

Entomological Review - The type and other extensive material of Coprophilus (Zonyptilus) pennifer (Motschulsky, 1845) and some of its synonyms was examined. Coprophilus (Zonyptilus) marginalis...     

Electronic structures of collagen model polymers: (Gly-Pro)n, (Gly-Hyp)n, (Ala-Pro)n, (Ala-Hyp)n, (Gly-Pro-Gly)n, (Gly-Hyp-Gly)n, (Gly-Pro-Pro)n, and (Gly-Pro-Hyp)n

In order to investigate the relationship existing between the electronic structures of collagen and its biochemical functions in vivo, the semiempirical CNDO/2 SCF MO calculations were carried out on several model polymers of collagen, (Gly-Pro)_n, (Gly-Hyp)_n, (Ala-Pro)_n, (Ala-Hyp)_n, (Gly-Pro-Gly)_n, (Gly-Hyp-Gly)_n, (Gly-Pro-Pro)_n and (Gly-Pro-Hyp)_n. Geometries of the skeleton of these polymers were assumed to be the same as those of poly(l-proline) I (cis) and II (trans) and the calculations were performed only on infinite polymers in a single chain. The results show that the cis form is always more stable than the trans form for all the polymers treated. This energy difference between the cis and trans forms depends, for example, on the kind of amino acid residue, Gly or Ala, but this could not be seen in the Pro or Hyp residue. The flexibility or mobility of the collagen structure was explained using the energy difference between the cis and trans forms of the polymers, i.e. the cis-trans conversion of the collagen was discussed in connection with the energy difference. The reason why the collagen has the constitution of (Gly-Pro-Hyp)_n is briefly discussed.     

On the Synonymy of Coprophilus (Zonyptilus) pennifer (Motschulsky, 1845) (Coleoptera,Staphylinidae, Oxytelinae)

Entomological Review - The type material of several synonyms of Coprophilus (Zonyptilus) pennifer (Motschulsky, 1845) is revised. Both Coprophilus (Zonyptilus) striatipennis (Eppelsheim, 1894) and...     

Genetic polymorphism (ABO, Rh, Kell) in Kabul (Afghanistan)

ABO, rhesus and Kell blood group data on 1327 donors in Kabul are analysed by ethnic affinity and compared with existing data on Afghanistan peoples. Blood group frequencies are very similar in Pushtu and Tadjik, despite their different historical, linguistic, and cultural backgrounds. Inclusion of the small sample of Hazara in the analysis shows overall heterogeneity in rhesus D, E, and e frequencies, suggesting the existence of a broader pattern of genetic variation among the peoples of Afghanistan.     

Ecomorphology ofCrassostrea cucullata (Born, 1778) (Ostreidae) in a mangrove creek (Gazi,Kenya)

Variations of shell form and shell length were studied for oysters growing in the mangroves of Gazi Creek, Kenya, and related to different environmental factors.For the study of the form, Fourier analysis was performed on the circumference of 85 oysters. The resulting coefficients were compared among specimens using cluster analysis. The correspondence between this classification and substrate diameter is virtually perfect (only one misclassification out of 85 oysters). For the clusters based on height above chart datum, 9 specimens, all on intermediate height levels, were misclassified. Orientation with respect to tidal current had 13 misclassifications. Mangrove species seemed to influence form only marginally, if at all.In the study of the size ofCrassostrea cucullata, the length of 956 oysters, growing along two transects were measured, and correlated with several environmental factors. Oyster length was not related to substrate diameter or its orientation with respect to the main current. Length was not influenced by density up to a cover of 70%. For densities higher than 70%, there was a fairly strong negative correlation (r ² = 0.634,n = 217). Length was not correlated with height above bottom (base of the tree) for heights lower than 20 cm, while oysters growing closer to the bottom were smaller. The correlation with height above chart datum was negative but very low (r ² = 0.060,n = 957). However, if all measurements of oysters closer than 20 cm to the bottom, and all from a density of more than 70% cover are deleted from the data set, the correlation with height increased dramatically, the slope still being negative (r ² = 0.859,n = 543).     

Spermiogenesis in Anaspides tasmaniae (Thomson) (Crustacea,Malacostraca, Syncarida)

Spermiogenesis of the syncarid Anaspides tasmaniae (subclass Eumalacostraca) was investigated by transmission electron microscopy. The spermatozoan of Anaspides is an ovoid cell with an acrosome covering the anterior pole and a lobulated nucleus and mitochondria occupying the rest of the cell. A long subacrosomal filament bypasses the nucleus and forms a spiral that supports a thin extension of the posterior cytoplasm, giving the spermatozoan a bell-shaped appearance. No flagellum is present at any stage. The immobile spermatozoans are embedded in a hard capsule, secreted by the cells of the wall of the vas deferens.