New eco-morphological-behavioural approach of the chinchilla rats in the pre-Andean foothills of the Monte Desert (Argentina)

This study characterizes the ecology, behaviour and morphology of populations of Abrocoma schistacea and A. uspallata in north-western Argentina. We carried out live-trapping, tagging and recapture during 2006–2008. Burrow structure and vegetation were described. Diet composition and the activity of chinchilla rats were defined. Both species inhabit rock crevices in the pre-Andean foothills of the Monte Desert. Some of their morphological specializations for saxicolous life, such as foot pads for better traction on rocky surfaces and reduced nails, are convergent with those of other saxicolous species. Both species appear to be diurnal, with activity peaking in the early morning. Dietary analyses suggest trophic specialization by both species. Density of A. schistacea was of 0.15 ± 0.06 individuals ha^?1; with individuals living in groups of 3–4 animals. Given their low abundance, restricted distribution and high level of habitat and food specialization, we urge that populations of this species be protected through effective management.     

Taxonomic revision of the genus Littorophiloscia Hatch, 1947 (Crustacea,Isopoda, Oniscidea) with description of six new species

In the present revision 15 species of Littorophiloscia are recognized. Six species, namely L. tropicalis, L. koreana, L. amphindica, L. pallida, L. bifasciata and L. hawaiiensis are described as new. Littorophiloscia isabellae (Vandel, 1973) is considered to be a junior synonym of L. albicincta (Vandel, 1973), and Philoscia dartevellei Brian, 1953 and Vandeloscia orientalis Roman, 1977 are considered to be junior synonyms of L. culebrae (Moore, 1901). Alloniscus compar sens. Vandel, 1952 nec Budde-Lund, 1893 is considered to be distinct from L. riedli (Strouhal, 1966) and it has been renamed L. tropicalis sp. nov. The genera Bilawrencia Vandel, 1973, Helenoscia Vandel, 1977, Vandeloscia roman, 1977 and Sayoscia Schultz, 1983 are considered to be synonymous with Littorophiloscia. Diagnostic characters of all the species are illustrated. A map and comments on the distribution of the 15 species are included.     

News from a small island – first record of a freshwater shrimp (Decapoda,Atyidae, Caridina) from Peleng,Banggai Islands,Indonesia

The Indonesian island Sulawesi is well known for its fascinating fauna. Among the atyid and palaemonid freshwater shrimps described from Sulawesi are also a number of endemic species. In contrast, freshwater shrimps have never been reported from the nearby and smaller Peleng Island. Here we describe Caridina thomasi sp. nov. as a first record of an atyid freshwater shrimp from Peleng and compare it with atyids from Sulawesi and other localities. The new species is probably endemic to the island and shows some characters never described in the genus Caridina before. However, a molecular phylogeny of atyid shrimps from the Indo‐West Pacific based on mitochondrial DNA (16S) places C. thomasi within a clade of typical species of Caridina. We tentatively assign the new species to the genus Caridina and discuss the possibility of future changes in the classification of species in this genus.     

飞播对不同沙地原生植被植物种类的影响

本研究通过对内蒙古典型草原区科尔沁沙地北缘的巴林左旗查干哈达苏木不同类型（流动、半流动）的沙地进行植物种类年度变化规律研究，阐明飞播对不同沙地原生植被植物种类的作用，并在飞播区和对照区比较研究的基础上，剖析了植物种类的动态变化、相关植物种的侵入和消减过程．     

New contributions to the marine benthic ciliates from the Antarctic area,including description of seven new species (Protozoa,Ciliophora)

Twenty‐six marine benthic ciliates including seven new species were isolated from King George Island, Antarctic. The morphology and taxonomy of 19 of them are described in the present paper: Aegyriana paroliva, Amphileptus sp., Amphisiella antarctica nov. spec., Condylostoma cf. magnum, Dysteria parovalis nov. spec., Folliculina ? sp., Hartmannula cf. angustipilosa, Hemigastrostyla szaboi nov. spec., Heterostentor coeruleus, Holosticha sp., Intranstylum antarcticum nov. spec., Metaurostylopsis rubra, Orthodonella shenae, Philasterides cf. armatalis, Pithites pelagicus nov. spec., Pleuronema coronatum, Strombidium apolatum nov. spec., Telotrochidium sp., and Thigmokeronopsis magna nov. spec. Based on the new observations, an improved diagnosis for the genus Aegyriana is suggested: dorsoventrally flattened Dysteriidae with tail‐shaped podite, which is positioned subcaudally in a glabrous region within somatic kineties; oral structure in two parts: ca three close‐set fragments on right and one preoral kinety on left; left postoral kineties shortened posteriorly and continuous with right ones, leaving no median gap or suture; cytopharyngeal rods dominant. According to the new understanding and information obtained, a refined diagnosis of the genus Hemigastrostyla is also suggested: hypotrich with Oxytricha‐like cirral pattern; eight to ten frontal (including one buccal) and five to seven ventral cirri; five transverse and three caudal cirri; no right‐lateral anlagen of dorsal kineties occurring and the old adoral zone will be partly replaced by newly formed structure during morphogenesis; dorsal cilia located in small pits, fibre system highly developed; marine habitat.     

广西花坪林区蜻蜓调查

记载广西花坪林区蜻蜓目Ｏｄｏｎａｔａ昆虫１４种，其中４种为广西区新记录种：巨齿尾溪虫忽ＢａｙａｄｅｒａｍｅｌａｎｏｐｔｅｒｙｘＲｉｓ、大赤蜻ＳｙｍｐｅｔｒｕｍｂａｃｈａＳｙｌｙｓ、秋赤蜻Ｓ．ｄｅｐｒｅｓｉｕｓｃｕｌｕｍＳｅｌｙｓ及褐顶赤蜻Ｓ．ｉｎｆｕｓｃａｔｕｍＳｅｌｙｓ。观察标本保存于山西大学生物系和广西师范大学生物系。     

香港蜘蛛一新属二新种(平腹蛛科,圆颚蛛科)

记述采自香港的二种蜘蛛：１．平腹蛛科Ｇｎａｐｈｏｓｉｄａｅ的胡氏香港蛛，新属新种，Ｈｏｎｇｋｏｎｇｉａｗｕａｅｇｅｎ．ｅｔｓｐ．ｎｏｖ．；２．圆颚蛛科Ｃｏｒｉｎｎｉｄａｅ的普氏膨颚蛛，新种，Ｏｅｄｉｇｎａｔｈａｐｌａｔｎｉｃｋｉｓｐ．ｎｏｖ．，香港蛛属为一新属，膨颚蛛属为我国新纪录属．     

酪氨酸电氧化反应特性的研究

提出一种能充分利用线性电势扫描伏安数据，并能对电活性质粒弱吸附进行定性判定的方法，对酪氨酸在玻碳电极上的吸附现象进行了研究，结果矣玻碳电极上发生了弱吸附，与文献中的方法比较，具有信息利用速率和处理效率高，可靠性强等优点。     

安徽景天科野生资源及开发展望

安徽有野生景天科植物２９种，隶属瓦松属（Ｏｒｏｓｔａｃｈｙｓ）、八宝属（Ｈｇｌｏｔｅｌｅｐｈｉｕｍ）和景天属（Ｓｅｄｕｍ）。因其富含化学成分，建议在医药、食用、观赏及环境保护等方面加大开发研究力度，将其潜在的野生价值转变成实际生产力．