查看更多>>摘要：Four species of the dexaminid genus Guernea are reported from Korean coastal waters. This is the first record of the genus Guernea from Korea. Two of the species are identified as new species; Guernea jejuensis and Guernea namhaensis. The remaining two Japanese species Guernea ezoensis Ishimaru, 1987 and Guernea nullispina Hirayama, 1985 are new records for Korean waters. The species are fully illustrated and detailed comparisons are made with related species. A key to north Pacific Guernea species is also provided.
PAULO RICARDO NUCCIGUSTAVO AUGUSTO SCHMIDT DE MELO
16页
查看更多>>摘要：In a previous paper we presented the species of the genus Pagurus recorded from Brazil. Here, we present the other 12 genera of the family Paguridae that occur in Brazil, with diagnoses, synonymies, illustrations and keys to species. These 12 genera include 16 species, some of which were found recently and only in deeper waters. This suggests the need for further studies in areas that have been little studied in Brazil.
查看更多>>摘要：We have in recent papers revealed that an integrative taxonomy approach helps to solve taxonomic problems in tardigrades. However, whole tardigrades are required for DNA work, which leaves no hologenophore voucher specimens with adult morphology. Using a novel methodology for the Tardigrada, we introduce the practice of collecting high quality maximum magnification light microscopy images of recently thawed animals to act as hologenophore voucher specimens of animals later used for DNA barcode sequencing. Within the framework of a DNA barcoding project on tardigrades, we collected a moss sample from the type locality of Macrobiotus terminalis Bertolani & Rebecchi, 1993 (Castelsantangelo, Central Apennines, Italy), a species of the "'Macrobiotus hufelandi group". Within the moss sample we found several animals and eggs with a morphology that corresponded to the original description of M. terminalis, while others were attributable to Macrobiotus macrocalix Bertolani & Rebecchi, 1993. In this study, molecular (coxl mtDNA) analyses demonstrated no intraspecific variability in M terminalis from the type locality but very large interspecific differences when compared with M. macrocalix and GenBank data for other species within the M. "hufelandi group".There was also a large difference between our M. terminalis sequences and the GenBank data of a specimen attributed to the same species. The GenBank sequence originated from a population in the Northern Apennines, whose morphology appeared to be like that of the specimens of the locus typicus. This confirmed the importance in utilising material from the type locality for linking molecular data to the species' morphological characters. Our paper underlines the importance of an integrative taxonomy in species diagnoses and demonstrates a scenario where morphological observations alone are not always sufficient. Lastly, this work adds reliable information to the sequence reference library that provides a useful building block for further studies on similar and related tardigrade taxa.
查看更多>>摘要：The male of Micrathena shealsi Chickering, 1960 is described and illustrated for the first time. New geographic records of this species are provided, revealing that M. shealsi inhabits the higher altitudinal belts (1000-3000 m) of the Yungas ecoregion(mountain forests and rainforests from Argentina). Male specimens were observed in the same web of females, in most cases on the upper periphery hanging by a silk line.
ELENA V. MIKHALJOVASERGEI I. GOLOVATCHHSUEH-WEN CHANG
5页
查看更多>>摘要：The family Metopidiotrichidae and the genus Metopidiothrix Attems, 1907 are formally new to the fauna of Taiwan, due to the discovery of Metopidiothrix taiwanensis sp. nov. The fauna of Chordeumatida of Taiwan is reviewed and keyed, at present containing 13 unquestioned species from three genera and three families. Three further species, one genus and one family are dubious either as taxa or as elements of the Taiwanese fauna, or both. Palaearctic elements, such as Diplomarag-nidae and Niponiosomatidae, appear to strongly dominate over austral/tropical ones (Metopidiotrichidae).
查看更多>>摘要：This short communication describing only a single new taxon is necessary to facilitate further research publications by Neil Blackstone & Austin Parrin (Northern Illinois University) and colleagues. Neil and Austin have found the new species to be anideal experimental animal that is fast-growing and extremely easy to rnaintain in laboratory aquaria (Parrin et al. 2010). [NTM = Museum & Art Gallery of the Northern Territory, PO Box 4646, Darwin, NT 0801, Australia].
NSTL