Three new species of the fairy shrimp Eubranchipus Verill, 1870 (Branchiopoda: Anostraca) from northern Japan and far Eastern Russia

Three new species of the genus Symmorphus Wesmael, 1836 are described with materials from South Korea and Far eastern Russia: Symmorphus kurzenkoi Kim sp. nov., S. truncatoclypeus Kim sp. nov., S. yamanei Kim sp. nov. All are members of the subgenus Symmorphus Wesmael 1836. S. kurzenkoi Kim sp. nov. is likely to be closely related to Symmorphus fuscipes in having well developed and completely closed propodeal submedian carina, but is clearly different from the latter in the shape of metasomal tergum 1 that is not markedly narrowed toward base. Within the S. murarius group proposed by Cumming 1989, Symmorphus truncatoclypeus Kim sp. nov. is unique in having a clypeus with apical margin completely truncated. S. yamanei Kim sp. nov. is separated from congeners by following combination of characteristics: uniformly lengthened mesosomal setae; vestigial epicnemial carina; areolate mesepimeron; propodeal submedian carina that is somewhat strongly developed though doubled and not clearly closed dorsally; weakly raised basal transverse carina on metasomal tergum 1; faintly foveate-reticulate dorsomedian portion of metasomal tergum 1. Re-description of S. tsushimanus Yamane 1990, which is the most poorly known species in the Far East, is presented based on the holotype. Finally, an updated revised determination key to Far Eastern species, supplemented by digital images and line drawings, is given.

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A new species of Metreletus Demoulin, 1951 from the far eastern region of Russia (Ephemeroptera: Ameletidae)

Zootaxa ◽

10.11646/zootaxa.3349.1.3 ◽

2012 ◽

Vol 3349 (1) ◽

pp. 31

Author(s):

TATIANA M. TIUNOVA

Keyword(s):

New Species ◽

The Other ◽

Eastern Region ◽

The Third ◽

Far Eastern Russia ◽

European Mountain ◽

Far Eastern ◽

A New Species ◽

Eastern Species ◽

Eastern Russia

Metreletus omelkoi sp. nov. (male, female imagines and male, female subimagines, larvae and egg) is described from the fareastern region of Russia. The genus Metreletus Demoulin, 1951 has a trans-Palaearctic distribution and includes two species:the West-European mountain species, M. balcanicus Ulmer, 1920, and the Far-Eastern species, M. micus Bajkova, 1976. Metre-letus omelkoi sp. nov. is the second species from Far-Eastern Russia and the third globally. The larvae of M. omelkoi sp. nov.differ from the other species in their genus by the size of gill I (M. micus) and the form of gills II–VII (M. balcanicus). The male imago of the new species can be distinguished from M. balcanicus by shape, the penis lobes.

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Geographic Distribution and Phylogeny of Soricine Shrew-Borne Seewis Virus and Altai Virus in Russia

Viruses ◽

10.3390/v13071286 ◽

2021 ◽

Vol 13 (7) ◽

pp. 1286

Author(s):

Liudmila N. Yashina ◽

Sergey A. Abramov ◽

Alexander V. Zhigalin ◽

Natalia A. Smetannikova ◽

Tamara A. Dupal ◽

...

Keyword(s):

Geographic Distribution ◽

Genomic Sequence ◽

Common Shrew ◽

The United States ◽

Eastern Siberia ◽

Geographic Ranges ◽

Lena River ◽

Far Eastern Russia ◽

Far Eastern ◽

Eastern Russia

The discovery of genetically distinct hantaviruses (family Hantaviridae) in multiple species of shrews, moles and bats has revealed a complex evolutionary history involving cross-species transmission. Seewis virus (SWSV) is widely distributed throughout the geographic ranges of its soricid hosts, including the Eurasian common shrew (Sorex araneus), tundra shrew (Sorex tundrensis) and Siberian large-toothed shrew (Sorex daphaenodon), suggesting host sharing. In addition, genetic variants of SWSV, previously named Artybash virus (ARTV) and Amga virus, have been detected in the Laxmann’s shrew (Sorex caecutiens). Here, we describe the geographic distribution and phylogeny of SWSV and Altai virus (ALTV) in Asian Russia. The complete genomic sequence analysis showed that ALTV, also harbored by the Eurasian common shrew, is a new hantavirus species, distantly related to SWSV. Moreover, Lena River virus (LENV) appears to be a distinct hantavirus species, harbored by Laxmann’s shrews and flat-skulled shrews (Sorex roboratus) in Eastern Siberia and far-eastern Russia. Another ALTV-related virus, which is more closely related to Camp Ripley virus from the United States, has been identified in the Eurasian least shrew (Sorex minutissimus) from far-eastern Russia. Two highly divergent viruses, ALTV and SWSV co-circulate among common shrews in Western Siberia, while LENV and the ARTV variant of SWSV co-circulate among Laxmann’s shrews in Eastern Siberia and far-eastern Russia. ALTV and ALTV-related viruses appear to belong to the Mobatvirus genus, while SWSV is a member of the Orthohantavirus genus. These findings suggest that ALTV and ALTV-related hantaviruses might have emerged from ancient cross-species transmission with subsequent diversification within Sorex shrews in Eurasia.

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Continuous Improvement in Wellbore Position Accuracy: Ultra-Extended-Reach Drilling in Far Eastern Russia

10.4043/29168-ms ◽

2018 ◽

Cited By ~ 3

Author(s):

Benny Poedjono ◽

Stefan Maus ◽

Sheldon Rawlins ◽

Nicholas Zachman ◽

Adam Paul Row ◽

...

Keyword(s):

Continuous Improvement ◽

Position Accuracy ◽

Far Eastern Russia ◽

Extended Reach Drilling ◽

Far Eastern ◽

Eastern Russia

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Nitrogen and Carbon Isotope Data of Olenekian to Anisian Deposits from Kamenushka/South Primorye, Far-Eastern Russia and Their Palaeoenvironmental Significance

Journal of Earth Science ◽

10.1007/s12583-018-0792-6 ◽

2018 ◽

Vol 29 (4) ◽

pp. 837-853 ◽

Cited By ~ 3

Author(s):

Yuri D. Zakharov ◽

Micha Horacek ◽

Alexander M. Popov ◽

Liana G. Bondarenko

Keyword(s):

Carbon Isotope ◽

South Primorye ◽

Isotope Data ◽

Far Eastern Russia ◽

Far Eastern ◽

Eastern Russia

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Are quasicrystals really so rare in the Universe?

American Mineralogist ◽

10.2138/am-2020-7519 ◽

2020 ◽

Vol 105 (8) ◽

pp. 1121-1125

Author(s):

Luca Bindi ◽

Vladimir E. Dmitrienko ◽

Paul J. Steinhardt

Keyword(s):

Milky Way ◽

Solar Nebula ◽

Carbonaceous Chondrite ◽

Icosahedral Symmetry ◽

Controlled Conditions ◽

Far Eastern Russia ◽

Far Eastern ◽

The Universe ◽

Eastern Russia

Abstract Until 2009, the only known quasicrystals were synthetic, formed in the laboratory under highly controlled conditions. Conceivably, the only quasicrystals in the Milky Way, perhaps even in the Universe, were the ones fabricated by humans, or so it seemed. Then came the report that a quasicrystal with icosahedral symmetry had been discovered inside a rock recovered from a remote stream in far eastern Russia, and later that the rock proved to be an extraterrestrial, a piece of a rare CV3 carbonaceous chondrite meteorite (known as Khatyrka) that formed 4.5 billion years ago in the pre-solar nebula. At present, the only known examples of natural quasicrystals are from the Khatyrka meteorite. Does that mean that quasicrystals must be extremely rare in the Universe? In this speculative essay, we present several reasons why the answer might be no. In fact, quasicrystals may prove to be among the most ubiquitous minerals found in the Universe.

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