球体蛛在我国首次发现及一新种记述（蜘蛛目：球体蛛科）

球体蛛在我国首次被发现,本文记述了产于我国海南的纳尔蛛属一新种,定名为华纳尔蛛Wendilgarda sinensis sp. nov.,模式标本保存在河北教育学院生物系。     

The genus Testudinella (Eurotatoria : Gnesiotrocha : Testudinellidae) in North-Eastern India

Nine species and subspecies of the genus Testudinella are reported from North-Eastern India. Of these, six are new to India and eight to the North-Eastern region. Remarks are made on their distribution.     

<Emphasis Type="Italic">Bracon (Lucobracon) iskilipus</Emphasis> sp. n. (Hymenoptera: Braconidae: Braconinae) from the Central Black Sea region of Turkey

During the studies on the Turkish Braconidae, a new species Bracon (Lucobracon) iskilipus sp. n. from the Turkish Central Black Sea region was recorded. Bracon (Lucobracon) iskilipus sp. n. was described, its morphological diagnostic characters were illustrated and it was compared with the related Bracon (Lucobracon) moczari Papp.     

Identification of a unicellular,non-pigmented alga that mediates growth inhibition in anuran tadpoles: a new species of the genus Prototheca (Chlorophyceae: Chlorococcales)

A non-pigmented, unicellular alga isolated from the faeces of British anuran tadpoles and which is associated with growth inhibition in these tadpoles, was described and identified using cytological, ultrastructural, nutrient assimilation and immunological studies. The alga possessed all the distinctive morphological features of the genus Prototheca, it grew weakly on Prototheca Isolation Medium (PIM), it required thiamine for continued growth and replication, and it could assimilate the five major substrates used to speciate the protothecans. All of these characteristics, together with previous nucleic acid hybridisation studies, indicated that the microorganism belonged to the genus Prototheca. There are currently five species recognised as valid (Pore, 1985 & 1986): Prototheca zopfii Kruger, 1884, P. wickerhamii Tubaki & Soneda, 1959, P. moriformis Kruger, 1884, P. stagnora Cooke, 1968 and P. ulmea Pore, 1986.The immunology showed that the new species was related to two of the protothecans, but overall it showed that the alga was antigenically distinct from the other protothecans tested in the immunoassay. This, together with its inability to grow strongly on PIM, its ability to assimilate a wide rage of carbon substrates and its ability to mediate growth inhibition in anuran tadpoles, indicated a new species of Prototheca. We therefore propose the name Prototheca richardsi sp. n.     

Tropodiaptomus zambeziensis,T. bhangazii and T. capriviensis,three new species of Tropodiaptomus (Copepods,Calanoida) from southern Africa

Three new species of Tropodiaptomus from southern Africa are described, Tropodiaptomus zambeziensis, T. bhangazii, and T. capriviensis. Type localities are a rice paddy on the Zambezi river delta, a coastal lake in Zululand, and temporary pools in Bushmanland and the eastern Caprivi in Namibia. Speciation of Tropodiaptomus in the warm inland waters of southern Africa is much more extensive than was formerly realised.     

Morphometric analysis of the genusHemerocallis L. (Liliaceae) in Korea

To better understand the patterns of variability and distributions ofHemerocallis in Korea, 53 locations were visited and measurements of 19 morphological and phenological characters were taken on plants directly from their natural habitats. For morphometric analysis, 10 plants from each of 34 populations and five herbarium specimens ofH. middendorffii were used and the data from 12 quantitative characters was analyzed using univariate analysis. Except the littoral populations of Cheju, Hong, Taehuksan, and Sohuksan Islands (H. hongdoensis M. Chung & S. Kang), three peninsular KoreanHemerocallis species can be recognized mainly in South Korea:H. hakuunensis Nakai (=H. micrantha Nakai, growing on southern, central, and northwestern Korea);H. thunbergii Baker (=H. coreana Nakai, found on southeastern and central Korea); andH. middendorffii Tr. et Mey. (central and northeastern Korea). Morphological and phenological features contributing to recognition of the three groups were; color of perianth, shape of roots, shape of inflorescence, flowering time, odor, length of inflorescence, width of the lowest bracts, length of perianth tube enclosing a ovary, width of the inner perianth lobes. Natural hybridization seems to be rare in KoreanHemerocallis. It appears that the KoreanHemerocallis species are relatively well characterized by their distribution patterns, phenology, and habitats compared with the JapaneseHemerocallis species.     

Checklist of tortoise beetles (Coleoptera,Chrysomelidae, Cassidinae) from Colombia with new data and description of a new species

A new tortoise beetle species, Cyrtonota abrili, is described from the Antioquia and Caldas departments in Colombia. New faunistic data are provided for 87 species, including 16 new additions to the country’s fauna. A checklist of the known 238 species of tortoise beetles recorded from Colombia is given.     

Summer and spring trophic niche of larval and juvenile <Emphasis Type="Italic">Pleuragramma antarcticum</Emphasis> in the Western Ross Sea,Antarctica

The aim of this paper is to contribute to the knowledge on the feeding habits of larvae and juvenile Pleuragramma antarcticum in the western Ross Sea. In summer, the diet of P. antarcticum postlarvae (8–17 mm) was dominated by calanoid eggs (35.5%), Limacina (32.1%) and tintinnids (17.6%), while the principal food of juveniles consisted mainly of copepods (98.2%), with Oncaea curvata being the most abundant (85.1%) and the most frequently consumed prey. The food composition of P. antarcticum postlarvae (24–29 mm), collected in spring, suggest that they fed actively under the sea ice. Stephos longipes, Harpacticus furcifer and Paralabidocera antarctica sea ice copepods represent, in all their different developmental stages, the most abundant biomass food in Terra Nova Bay in this period. Our results therefore suggest that the diet of younger Pleuragramma specimens shifted in prey composition from the first summer to the following spring. This study draws attention to the key role of the copepod, P. antarctica, in the food web of Terra Nova Bay. This article belongs to a special topic: Five articles coordinated by L. Guglielmo and V. Saggiomo appear in this issue of Polar Biology and are a result of a workshop on Sea-ice communities in Terra Nova Bay (Ross Sea) held in August 2007 in Capo Calavà, Messina, Italy.