查看更多>>摘要：We identified nine species of phylactolaemate bryozoans collected from ponds and dams on Okinawa Island, Japan. This is the first report on freshwater bryozoans from Okinawa and includes the first record of Plumatella javanica from Japan. Phylactolaemate species were identified on the basis of colony and statoblast morphology and are illustrated by light microscopy and scanning electron microscopy (SEM). We detected two new plumatellid species that, like Plumatella minuta and Plumatella vorstmani, have a transparent, weakly chitinized colony and hypertubercles on the floatoblast fenestra. A previous molecular study showed these four species to form a clade separate from Plumatella and Hyalinella. We here establish the new genus Rumarcanella to accommodate these species and describe Rumarcanella gusuku n. sp. and R. yan-baruensis n. sp. We discuss the dispersal of bryozoans to and from Japan by birds carrying statoblasts and provide a key to the Phylactolaemata of Japan.
查看更多>>摘要：A new subfamily Odiomarinae nov. subfam. is erected to receive two primitive genera of the eubrachyuran family Hymenosomatidae MacLeay, 1838: Odiomaris Ng & Richer de Forges, 1996, and Amarinus Lucas, 1980, mostly from fresh and estuarine waters of the Indo-West Pacific region. The new subfamily is characterised by the presence of "intercalated platelets" on the male abdomen, either articulated and moveable or relatively less well demarcated. The hymenosomatid platelets are actually vestigial uropodsthat are similar to those, also showing as dorsal plates, of the podotreme Dynomeni-dae Ortmann, 1892, and Dromiidae De Haan, 1833. The hymenosomatid uropod differs from the podotreme ones by the deep socket that is excavated at its ventral side and thus corresponds to the typical eubrachyuran press-button system. The odiomarine socket is particularly interesting because it provides morphological and phylogenetic criteria for identifying podotreme uropods and eubrachyuran sockets as homologues. In addition to several other plesiomorphic characters, the retention of dorsal uropods in the Hymenosomatidae, a unique known case in the Eubrachyura Saint Laurent, 1980, and evidence of an ancient lineage, allows re-defining and preliminarily interpreting theexclusive combination of characters of the family and to reconsider its status within the Eubrachyura.
查看更多>>摘要：Three new species of Indochinamon Yeo & Ng, 2007, are described from Vietnam. The poorly known Vietnamese species Indochinamon kimboiense (Dang, 1975) is redescribed. The holotype of/, kimboiense is lost, and a topotypic specimen is designated as theneotype. Indochinamon bavi n. sp. from Ba Vi National Park, Ha Tay Province, and I, phongnhan. sp. from Phong Nha, Quang Binh Province, are allied to I. kimboiense, but can be distinguished by the characters of the carapace, chela and male first pleopod.Indochinamon dangi n. sp. is allied to I. lipkei (Ng & Naiyanetr, 1993) [type locality northern Thailand], but can be distinguished by characters of the carapace, telson, and male first pleopod.
查看更多>>摘要：In August 2009 the Natural History Museum London, Hungarian Natural History Museum and Systematic Zoology Research group, Entomological Museum in Leon and The Society for Environmental Exploration, mounted the first earthworm collection expedition toNicaragua. No native earthworm species had previously been recorded for this country. This paper lists 18 new species records for the Country with the description of two new taxa to science: Eutrigaster (Graf-fia) azul sp. n. and Eutrigaster (Graffia) nicaraoi sp. n. New data on the species Eutrigaster (Eutrigaster) oraedivitis Cog-netti, 1904 is also presented here.
查看更多>>摘要：Two new species of the oribatid mite family Protoplophoridae (Acari: Oribatida), Arthrhoplophora adjacentis sp. nov. and Protoplophora takensis sp. nov., collected from leaf litter of dry evergreen forest, are described and illustrated from Thailand.Arthrhoplophora adjacentis sp. nov. is unique in having the long ciliated rostral setae which are closely paired and bidactylous claws on pretarsi I, whereas pretarsi II-IV are tridactylous. Protoplophora takensis sp. nov. differs from its congeners by the presence of notogastral setae cp, seven pairs of genital setae and four-segmented palpi. Identification keys to species of Arthrhoplophora and Protoplophora are also provided.
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