KONSTANTIN R. TABACHNICKLARISA L. MENSHENINAANDRZEJ PISERAHERMANN EHRLICH...
22页
查看更多>>摘要：The genus Aspidoscopulia previously known from a single Recent representative from the Indonesian Archipelago has been found to have wide West Pacific distribution, being present in large numbers in French and Russian collections. Two new Recent species of this genus, i.e. A. bisymmetrica sp. n. and A. tetrasymmetrica sp. n., are here described and illustrated. The genus is also found to have fossil record in the late Paleocene-early Eocene of the Chatham Islands, New Zealand. The generic diagnosis of Aspidoscopulia is emended due to new findings. Branching pattern and metamery occurring in these sponges are also discussed.
查看更多>>摘要：We report on a collection of mites in the family Laelapidae associated with scarabaeid beetles in Iran. Five known species are recorded from Iran for the first time: Coleolaelaps asiaticus Karg, 1999, Hypoaspis integer Berlese, 1911, Hypoaspis pentodoni Costa, 1971, Hypoaspisphyllognathi Costa, 1971, and Hypoaspis terrestris (Leonardi, 1899). Four new species are described: Coleolaelaps costal sp. nov., Hypoaspis larvicolus sp. nov., Hypoaspis maryamae sp. nov., and Hypoaspis melolonthae sp. nov. Theecological relationship between these mites and their beetle hosts has not been analysed in detail, but they probably do not play a major role as biological control agents of pest scarabs.
查看更多>>摘要：Subjectivity is a common problem in most taxonomic studies that deal with gradual changes in shape. An example is the systematics of the genus Yoldiella, which has been a matter of debate for over 40 years. However, hinge plate features have never been examined as a significant diagnostic feature in descriptions of Yoldiella species. We tested how hinge plate characters perform in discriminating among three species of this genus from the Campos Basin, Brazil. We tested the efficacy of traditional shell shape features alone, and contrasted this with a general analysis that included the hinge plate features; and also with an analysis based solely on the hinge plate. Some information on the hinge plate is used here for the firsMime, such as the distance between the highest teeth to the umbo and the distance between the highest teeth to the margin. The hinge plate analysis and a general analysis, including both shell shape and hinge plate variables, were more effective (87.5% of cases assigned correctly) than the analysis that included only shell shape variables (73.3% cases assigned correctly). The variables related to the highest teeth and the width of the hinge teeth stood out as major contributors in discriminating among these three species.
DAVID S. MCLEODSTEPHANI J. HORNERCOLIN HUSTEDANTHONY BARLEY...
13页
查看更多>>摘要：A new species in the dicroglossine genus Limnonectes from West Sumatra, Indonesia, is described. Analysis of DNA sequence data from the mitochondrial 12S and 16S gene regions places the species within the Limnonectes kuhlii Complex and demonstrates itto be the sister taxon of Limnonectes kuhlii sensu stricto from Java. Both molecular and morphological data support the recognition of this lineage as a new species. Notably, the presence of a spinule-covered mental plate distinguishes Limnonectes sisikdagu sp. nov. from all other members of the L. kuhlii Complex. Additionally, pair-wise sequence divergence greater than 10% separate the new species from its sister taxon, L. kuhlii from Java.
查看更多>>摘要：The spider fauna of Laos was for a long time neglected in terms of arachnological investigations. Only recently the spider fauna is investigated, new species are described, new records are listed and illustrations of species are provided for identification purposes (Jager 2007; Jager & Praxaysombath 2009, in press). Currently, 150 spider species are recorded for Laos (Jager & Praxaysombath in press).
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