At present, descriptions of Cleantioides emarginata Kwon & Kim, 1992 have been limited to the type locality of Pusan, Korea. In this study, we discovered this species in the Changjiang (Yangtze) River estuary, Chi...At present, descriptions of Cleantioides emarginata Kwon & Kim, 1992 have been limited to the type locality of Pusan, Korea. In this study, we discovered this species in the Changjiang (Yangtze) River estuary, China. This represents an extension of the known geographical range of C. emarginata. In addition, we present information of a colour pattern not previously described, along with details on the estuarine habitat of the species.展开更多
Several specimens of the giant deep-sea isopod genus Bathynomus were collected by a deep-sea lander at a depth of 898 m near Hainan Island in the northern South China Sea.After careful examination,this material and th...Several specimens of the giant deep-sea isopod genus Bathynomus were collected by a deep-sea lander at a depth of 898 m near Hainan Island in the northern South China Sea.After careful examination,this material and the specimens collected from the Gulf of Aden,north-western Indian Ocean,previously reported as Bathynomus sp.,were identified to be the same as a new species to the genus.Bathynomus jamesi sp.nov.can be distinguished from the congeners by:the distal margin of pleotelson with 11 or 13 short straight spines and central spine not bifid;uropodal endopod and exopod with distolateral corner slightly pronounced;clypeus with lateral margins concave;and antennal flagellum extending when extended posteriorly reaches the pereonite 3.In addition,Bathynomus jamesi sp.nov.is also supported by molecular analyses based on mitochondrial COI and 16S rRNA gene sequences.The distribution range of the new species includes the western Pacific and north-western Indian Ocean.展开更多
Spherillo hailuogouensis sp.nov.is described from Hailuogou National Glaciers Forest Park,China.The new species can be diagnosed by the apical part of the male pleopod endopod 1 bearing four spinules near middle and f...Spherillo hailuogouensis sp.nov.is described from Hailuogou National Glaciers Forest Park,China.The new species can be diagnosed by the apical part of the male pleopod endopod 1 bearing four spinules near middle and four well-developed denticles on outer margin.Type specimens are deposited in the Insect Museum,Jiangxi Agricultural University,Nanchang,P.R.China.展开更多
The soil animal Mongoloniscus sinensis （Dollfus, 1901） is distributed in Northern China together with three other congeneric species only found in Asia. Compared to European and North American Oniscidea, little phyl...The soil animal Mongoloniscus sinensis （Dollfus, 1901） is distributed in Northern China together with three other congeneric species only found in Asia. Compared to European and North American Oniscidea, little phylogeographic information about this Asian genus has been reported. Herein, we infer the genetic structure and demographic history of M. sinensis based on mitochondrial cytochrome c oxidase subunit I （mtCoI）. The total dataset included 193 individuals from 26 locations in four provinces （Shanxi, Henan, Hebei and Shandong） of China. Most of the 87 haplotypes were unique to a sampling location, but seven haplotypes were shared among the populations. The results showed that high genetic differentiation exists both within populations and among the groups and populations ofM. sinensis. According to the distribution of phylogenic clades and geographic analyses, it is suggested that mountain ranges play an important role in population separation and that the possible evolutionary trajectory of this species is from north to south. The most likely place of origin is the Northeast Plain of China with an estimated time of isolation separating populations around 8 Mya.展开更多
基金Supported by the Innovate Funds of East China Normal University(No.78210097)the Innovate Funds of the State Key Laboratory of Estuarine and Coastal Research(No.2010RCDW15)the National Natural Science Foundation of China(Nos.41201441,40906046)
文摘At present, descriptions of Cleantioides emarginata Kwon & Kim, 1992 have been limited to the type locality of Pusan, Korea. In this study, we discovered this species in the Changjiang (Yangtze) River estuary, China. This represents an extension of the known geographical range of C. emarginata. In addition, we present information of a colour pattern not previously described, along with details on the estuarine habitat of the species.
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Nos.XDB06010100,XDB06010103 and XDB06010201)the National Natural Science Foundation of China(Nos.41406147 and 41406160)the Scientific and Technological Cooperation Special Foundation of Hainan Province(KJHZ2015-17).
文摘Several specimens of the giant deep-sea isopod genus Bathynomus were collected by a deep-sea lander at a depth of 898 m near Hainan Island in the northern South China Sea.After careful examination,this material and the specimens collected from the Gulf of Aden,north-western Indian Ocean,previously reported as Bathynomus sp.,were identified to be the same as a new species to the genus.Bathynomus jamesi sp.nov.can be distinguished from the congeners by:the distal margin of pleotelson with 11 or 13 short straight spines and central spine not bifid;uropodal endopod and exopod with distolateral corner slightly pronounced;clypeus with lateral margins concave;and antennal flagellum extending when extended posteriorly reaches the pereonite 3.In addition,Bathynomus jamesi sp.nov.is also supported by molecular analyses based on mitochondrial COI and 16S rRNA gene sequences.The distribution range of the new species includes the western Pacific and north-western Indian Ocean.
基金supported by the National Natural Science Foundation of China(31601885)Doctoral Foundation of Jiangxi Agricultural University(9232303272)
文摘Spherillo hailuogouensis sp.nov.is described from Hailuogou National Glaciers Forest Park,China.The new species can be diagnosed by the apical part of the male pleopod endopod 1 bearing four spinules near middle and four well-developed denticles on outer margin.Type specimens are deposited in the Insect Museum,Jiangxi Agricultural University,Nanchang,P.R.China.
基金supported by National Natural Science Foundation of China(31471970)
文摘The soil animal Mongoloniscus sinensis （Dollfus, 1901） is distributed in Northern China together with three other congeneric species only found in Asia. Compared to European and North American Oniscidea, little phylogeographic information about this Asian genus has been reported. Herein, we infer the genetic structure and demographic history of M. sinensis based on mitochondrial cytochrome c oxidase subunit I （mtCoI）. The total dataset included 193 individuals from 26 locations in four provinces （Shanxi, Henan, Hebei and Shandong） of China. Most of the 87 haplotypes were unique to a sampling location, but seven haplotypes were shared among the populations. The results showed that high genetic differentiation exists both within populations and among the groups and populations ofM. sinensis. According to the distribution of phylogenic clades and geographic analyses, it is suggested that mountain ranges play an important role in population separation and that the possible evolutionary trajectory of this species is from north to south. The most likely place of origin is the Northeast Plain of China with an estimated time of isolation separating populations around 8 Mya.
