A new species of the genus Cytheridella (Crustacea,Ostracoda) from Nigeria,West Africa

Cytheridella tepida sp. nov., a freshwater ostracod, is described from Nigeria, West Africa. It has been compared with five extant species of the genus Cytheridella. Cytheridella tepida was collected from slow-flowing streams characterized by warm water. Some other ecological notes on its habitat are given.     

The non-marine Crustacea of Antarctica and the Islands of the Southern Ocean: biodiversity and biogeography

A total of 101 verified species and eight ordinal taxa represent the non-marine Crustacea on Antarctica and the islands of the Southern Ocean. The largely terrestrial Isopoda and Amphipoda are confined to some sub-Antarctic and cool temperate islands while the predominantly freshwater Anostraca, Anomopoda, Copepoda (=Calanoida, Cyclopoida, Harpacticoida) and Ostracoda (Podocopida) occur throughout the region. Holocene sea-level rises fragmented freshwater and terrestrial species ranges on New Zealand, Auckland, Campbell, and possibly other South Pacific islands, leaving a legacy of vicariant taxa. Tertiary species probably survived Pleistocene glaciation in aquatic refugia on the New Zealand/South Pacific, Falkland, Crozet and Kerguelen archipelagoes, but there are no valid records of Tertiary Antarctic Crustacea. All 40 Continental and Maritime Antarctic freshwater records can be ascribed to the historic introduction of anthropogenic aliens, Holocene immigration of colonists, returning re-colonists and marine species 'marooned' in epishelf and other coastal lakes.     

Ostracod fauna of salt Lake Acıgöl (Acı Tuz) (Turkey)

Lakes and wetlands in Mediterranean regions are overexploited and contaminated without sufficient local governmental control. The biodiversity of Salt Lake Ac?göl (Turkey), an internationally recognized ecosystem, is presently endangered by management plans. This study aims to analyse the ostracod community to establish its ecological status as a base for future paleoecological studies using ostracods to reconstruct the recent evolution of this wetland. Samples were collected seasonally and 13 species were recorded. Multivariate classification and ordination statistical methods revealed a major difference between assemblages related to the relative abundance of species tolerant of desiccation vs. species preferring permanent waters. Cyprideis torosa, mainly found in saline, low diversity sites, is a euryhaline species regarded as an indicator of future lake conditions if inappropriate water resource management continues.     

辽东湾表层沉积中有孔虫介形虫研究

对辽东湾的８８个表层沉积样品中的有孔虫介形虫进行了定性和定量分析，共得有孔虫４４属８７种，介形虫２４属３４种，按其分布范围的差异分为３个有孔虫介形虫组合；并探讨了组合与沉积环境的关系。     

贵州遵义晚二叠世长兴组的介形类

本文首次报道了贵州遵义晚二叠世长兴组介形类化石，计14属24种（其中4新种、4未定种）。这些介形类化石的发现，不但为该区地层划分与对比提供了新的依据，而且对二叠系与三叠系的界线研究也具有一定意义。     

Freshwater ostracods (Crustacea) from Tiantong National Forest Park and Dongqian Lake,eastern China,with descriptions of two new species

In this study, 192 samples were collected and analyzed from diverse water bodies in the Tiantong National Forest Park and Dongqian lake in Zhejiang Province, China. Twenty living ostracod species were identified, belonging to four families, eight subfamilies and 15 genera. Among them, two species are new, belonging to the genera Ilyocypris and Schellencandona; seven species, including Dolerocypris ikeyai Smith and Kamiya, 2006, Pseudocandona abei Smith and Janz, 2008, Stenocypris hirutai Smith and Kamiya, 2006, S. viridis Okubo, 1990, Tanycypris alfonsi Nagler et al., 2014, T. centa Chang et al., 2012 and Vestalenula cornelia Smith et al., 2006, are new records for China; nine species are reported only from Asia: Candonopsis (Candonopsis) transgrediens Brehm, 1923, Chrissia dongqianhuensis Kong et al., 2014, Dolerocypris ikeyai Smith and Kamiya, 2006, Ilyocypris dui n. sp., Pseudocandona abei Smith and Janz, 2008, Schellencandona dui n. sp., Stenocypris hirutai Smith and Kamiya, 2006, S. viridis Okubo, 1990 and Vestalenula cornelia Smith et al., 2006. Of the above species, the two new species, Schellencandona dui n. sp. and Ilyocypris dui n. sp., are described and illustrated, and Stenocypris viridis is re-described.

www.zoobank.org/urn:lsid:zoobank.org:pub:2D679051-CBA2-4B09-BCF0-E0152EBC2694     

Re-description of Heterodesmus adamsii Brady, 1866 from Japan,with a description of a new congeneric species (Ostracoda: Myodocopina)

Heterodesmus adamsii Brady, 1866 from Amakusa and a new species, Heterodesmus apriculus sp. nov. from Amakusa and Noto, both from Japan are reported. It is confirmed in the present study that the main characteristics of the carapace and appendages of H. adamsii accord with those of the genus Amphisiphonostra Poulsen, 1962, and it is concluded that the latter is a junior synonym of Heterodesmus Brady, 1866. A diagnosis of the genus Heterodesmus is given.     

基于形态及分子性状对介形类高级分类体系的分析

运用最大简约法（MP）对介形纲中9个主要类群的27个形态性状及18S rDNA序列进行分析,并构建系统发育一致树,以期为尚存争议的现生介形类高级阶元分类提供新的证据.结果显示punciidaen自成一类,其分类地位与尾肢亚纲（Podocopa）和壮肢亚纲（Myodocopa）相当,可命名为“Punciocopa”,但仍需更多的证据加以证实;而吸海萤类（halocypridian）由于基于形态与分子证据获得的拓扑结构不一致,其分类地位尚无法得以解决;在介形类3个亚纲中,尾肢亚纲应包括金星介（Cypridocopina）、浪花介（Cytherocopina）、巴氏介（Bairdiocopina）、达尔文介（Darwinulocopina ）和泡沫介（Cytherellidae）5个类群, 壮肢亚纲至少包括分肢介（Cladocopida）和壮肢介（Myodocopida）两个类群,而“Punciocopa”仅有Punciidae科.     

On a freshwater species of the genus Sanyuania Zhao and Han, 1980 (Crustacea,Ostracoda, Loxoconchidae) from Thailand,with a discussion on morphological evolution of the freshwater Loxoconchidae

The genus Sanyuania Zhao and Han, 1980 Zhao, G. and Han, D. 1980. “Late Quaternary brackish‐water ostracod faunas from the area to the west of Weishanhu Lake, Jiangsu and their significance.”. In Papers on Marine Micropaleontology, Edited by: Wang, P. 120–129. Beijing (China): Ocean Press.  [Google Scholar] is here transferred from the Cytherideidae to the Loxoconchidae, based on the morphology of valves and soft parts. Sanyuania segersi sp. nov., is described from a freshwater habitat, a river, in Thailand. This is the first record of this genus in Southeast Asia. The new species has a number of remarkable characters distinguishing it from other members in the genus and family: invicidont hinge, spearhead‐like protruding posterior extremity of carapace in dorsal view, subtriangular shape of carapace in lateral view, sieve plate without a central seta (sensillum) and an aberrant chaetotaxy of first and second antennae. The new taxon is compared with other recent freshwater loxoconchids [Cytheromorpha fuscata (Brady, 1869 Brady, G. S. 1869. Contributions to the study of the Entomostraca. IV. Ostracoda from the River Scheldt and the Grecian Archipelago.. Ann Mag Nat Hist ser 4., 3: 44–50.  [Google Scholar]), Elofsonia baltica (Hirschmann, 1909), Loxoconcha elliptica Brady, 1868, Loxoconcha galilea Lerner‐Seggev, 1968, Pseudolimnocythere hartmanni Danielopol, 1979 Danielopol, D. L. 1979. On the origin and the antiquity of the Pseudolimnocythere species (Ostracoda, Loxoconchidae).. Biol Gallo‐Hellen., 8: 99–107.  [Google Scholar], Pseudolimnocythere hypogaea Klie, 1938 Klie, W. 1938. Ostracoden aus unterirdischen Gewässern in Süditalien.. Zool Anz., 123: 148–154.  [Google Scholar]] using (1) phylogenetic analyses and (2) analyses of the chaetotaxy of the first antenna and second and third thoracopods, by comparison with an ontogenetic series of Loxoconcha japonica Ishizaki, 1968. The results from both types of analyses are congruent and reveal that Sanyuania segersi sp. nov., Pseudolimnocythere and Loxoconcha are in a more derived clade in the Loxoconchidae and are closely related to each other, whereas Cytheromorpha and Elofsonia are more ancestral.     

On Paranacypris samambaiensis gen. nov., sp. nov. (Crustacea,Ostracoda), the first South American psychrodromid from the alluvial valley of the Upper Paraná River,Brazil

Paranacypris samambaiensis gen. nov., sp. nov. is here described from closed lakes in the alluvial valley of the Upper Paraná River. The new genus, characterized by a large frontally overlapping left valve, belongs in the Psychrodromini, and is the first representative of this tribe described in South America. Nevertheless, it has some different character states, and the diagnosis of the tribe had to be adapted. The species is rare and restricted to closed lakes (not in contact with the main channels of the river). It mostly occurs in benthic littoral habitats, and far less in the pleuston communities, the most common habitat in this floodplain. The behaviour of P. samambaiensis gen. nov., sp. nov. is enigmatic because it combines long natatory setae on the antennae (swimming behaviour) with a very stout caudal ramus, including the spine‐like posterior seta (crawling behaviour). We present a key to the genera of the Herpetocypridinae.