Evaluation of Bovine High-Density SNP Genotyping Array in Indigenous Dairy Cattle Breeds

In total 52 samples of Sahiwal (19 Excoffier L, Laval G, Schneider S. Arlequin 3.01: An integrated software package for population genetics data analysis. Evol Bioinform Online 2005; 1:47–50.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), Tharparkar (17 Hayes BJ, Bowman PJ, Chamberlain, AJ, Goddard ME. Invited review: genomic selection in dairy cattle: progress and challenges. J Dairy Sci 2009; 92:433–443.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), and Gir (16 Melka HD, Jeon EK, Kim SW, Han JB, Yoon D, Kim KS. Identification of genomic differences between Hanwoo and Holstein breeds using the Illumina Bovine SNP50 BeadChip. Genomics Inform 2011; 9:69–73.[Crossref] , [Google Scholar]) were genotyped by using BovineHD SNP chip to analyze minor allele frequency (MAF), genetic diversity, and linkage disequilibrium among these cattle. The common SNPs of BovineHD and 54K SNP Chips were also extracted and evaluated for their performance. Only 40%?50% SNPs of these arrays was found informative for genetic analysis in these cattle breeds. The overall mean of MAF for SNPs of BovineHD SNPChip was 0.248?±?0.006, 0.241?±?0.007, and 0.242?±?0.009 in Sahiwal, Tharparkar and Gir, respectively, while that for 54K SNPs was on lower side. The average Reynold’s genetic distance between breeds ranged from 0.042 to 0.055 based on BovineHD Beadchip, and from 0.052 to 0.084 based on 54K SNP Chip. The estimates of genetic diversity based on HD and 54K chips were almost same and, hence, low density chip seems to be good enough to decipher genetic diversity of these cattle breeds. The linkage disequilibrium started decaying (r²?相似文献   

Understanding Kurdish ethno-nationalism in Turkey: socio-economy,religion, and politics

Abstract

In his recent article in Ethnic and Racial Studies, entitled ‘Curbing Kurdish ethno-nationalism in Turkey’, (Sarigil 2010 Sarigil, Zeki. 2010. Curbing Kurdish ethno-nationalism in Turkey: an empirical assessment of pro-Islamic and socio-economic approaches. Ethnic and Racial Studies, 33(3): 533–53. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) tests two rival hypotheses regarding Kurdish ethno-nationalism in Turkey and, using data from the World Values Survey (WVS), finds that socio-economic status (levels of income and education) better explains the individual roots of Kurdish ethno-nationalism in Turkey than does religiousness. In this paper, I offer both a methodological critique of Sarigil's research and a replication of his model with a more appropriate sample. I first argue that Sarigil's research design lacks internal validity because it studies Kurdish nationalism within a sample that predominantly consists of Turks, which invalidates his findings. I then replicate and expand Sarigil's model within a specific sample of Kurdish-speaking people in Turkey. The results show dramatic changes. Religiosity and political satisfaction seem to be better predictors of support for Kurdish ethno-nationalism in Turkey than do socio-economic factors.     

‘Here are the Gypsies!’ The importance of self-representations and how to question prominent images of Gypsy minorities

Abstract

Gypsy, Roma or traveller minorities remain a group that is still homogenized as the ‘other’¹1. There are an estimated 12 million Gypsy people across Europe, with the majority residing in Central and Eastern Europe. ‘Roma’ is the European institutional preferred umbrella term, but it is often rejected by activists and at a local level because many groups still identify as ‘Gypsies’ (Gay y Blasco 2002 Gay Y Blasco, Paloma 2002 ‘Gypsy/Gypsy diasporas: A comparative perspective’, Social Anthropology, vol. 10, no. 2, pp. 173–88[Crossref] , [Google Scholar]; Mayall 2004 Mayall, David 2004 Gypsy Identities 1500–2000: From Egipcyans and Moon-men to the Ethnic Romany, London: Routledge[Crossref] , [Google Scholar]; Szuhay 2005 Szuhay, Péter 2005 ‘The self-definitions of Roma ethnic groups and their perceptions of other Roma groups’, in Kemény István (ed.), Roma of Hungary, New York: Columbia University Press, pp. 237–46 [Google Scholar]). In this article I use ‘Gypsy’ as a translation of the Hungarian word cigány as this is how the participants self-identified.. The European imagination continues to be entrenched in the spectacle of their difference – images of weddings, musicians, funerals and fights are fascinating and are thus prioritized. But what would happen if the cameras were given to these people themselves? What if they became the image-makers? This article examines how ethnic studies might contribute to breaking the mould of the exoticized Gypsy through self-representations. The study here formed part of an ethnographic project among primary school pupils in Hungary. Using the photo elicitation method, children were given disposable cameras producing 451 photographs that then formed the basis of interviews. The results reveal very few indicators that could be described as significantly or distinctively divided into ‘Gypsy’ or ‘non-Gypsy’ identifications, questioning the status of difference in discourses around such minorities.     

A new clionaid sponge infests live corals on the west coast of India (Porifera,Demospongiae, Clionaida)

Coral reef ecosystems depend on the balanced interplay of constructive and destructive processes and are increasingly threatened by environmental change. In this context bioeroding sponges play a significant role in carbonate cycling and sediment production. They occasionally aggravate erosional processes on disturbed reefs. Like other coral ecosystems, Indian reefs have suffered from local and global effects. However, the systematic affiliation and diversity of many Indian bioeroding sponges and their infestation rates are largely confused or unknown. The present study describes a new bioeroding sponge species, Cliona thomasi sp. nov. from the central west coast of India. It belongs to the Cliona viridis species complex, displaying the key characters of tylostyles and spirasters, as well as harbouring photosymbiotic dinoflagellates. Specific morphological characteristics and molecular data from nrITS1 DNA and 28S rDNA distinguished C. thomasi sp. nov. from other known C. viridis complex and a number of Spheciospongia species. The historic sample of ‘Suberites coronarius’ from Mergui Archipelago (sensu Carter, 1887 Carter, H. J. (1887). Report on the marine sponges, chiefly from King Island, in the Mergui Archipelago, collected for the trustees of the Indian museum, Calcutta, by Dr. John Anderson, F. R. S., superintendent of the museum. Zoological Journal of the Linnean Society, 21, 61–84. https://doi.org/10.1111/j.1096-3642.1887.tb00381.x[Crossref] , [Google Scholar]), but not from the Caribbean (sensu Carter, 1882 Carter, H. J. (1882). Some sponges from the West Indies and Acapulco, in the Liverpool Free Museum, described with general and classificatory remarks. Annals and Magazine of Natural History, 9, 266–301, 346–368, pls. XI-XII. https://doi.org/10.1080/00222938209459039[Taylor &; Francis Online] , [Google Scholar]), is conspecific with C. thomasi sp. nov. Cliona thomasi sp. nov. is locally very abundant, appears to be a key bioeroder, and thus regular monitoring of its abundance, distribution and infestation patterns is recommended.     

A taxonomical study of the genus Esakia Lundblad, 1933 (Heteroptera: Gerromorpha: Gerridae), with descriptions of two new species from Borneo

Abstract

Two new species of the genus Esakia Lundblad, 1933 Lundblad, O.M . (1933), ‘Zur Kenntnis der aquatilen und semi-aquatilen Hemipteren von Sumatra, Java und Bali’, Archiv für Hydrobiologie Supplementum , 12, 1–195, 263–489. [Google Scholar] are described, both from Borneo: Esakia borneensis sp. n. and E. mazzoldii sp. n. For the first time, E. johorensis Cheng, 1966 Cheng, L . (1966), ‘Three New Species of Esakia Lundblad (Heteroptera: Gerridae) from Malaya’, The Proceedings of the Royal Entomological Society of London , 35(1–2), 16–22. [Google Scholar] is reported from Sumatra; E. hungerfordi Miyamoto, 1967 Miyamoto, S . (1967), ‘Gerridae of Thailand and North Borneo Taken by the Joint Thai-Japanese Biological Expedition 1961–62’, Nature Life Southeast Asia , 5, 217–257. [Google Scholar] from Sarawak and Sabah; and E. lundbladi Cheng, 1966 Cheng, L . (1966), ‘Three New Species of Esakia Lundblad (Heteroptera: Gerridae) from Malaya’, The Proceedings of the Royal Entomological Society of London , 35(1–2), 16–22. [Google Scholar] from Thailand (Narathiwat Province). The taxonomy of E. kuiterti Hungerford and Matsuda, 1958 Hungerford, H.B. , and Matsuda, R . (1958), ‘The Genus Esakia Lundblad with Two New Species (Heteroptera, Gerridae)’, Journal of the Kansas Entomological Society , 31(3), 193–197. [Google Scholar] and E. hungerfordi is discussed. Esakia hungerfordi, previously considered by Polhemus (1992 Polhemus, J.T . (1992), ‘Nomenclatural Notes on Aquatic and Semiaquatic Heteroptera’ [Short communications], Journal of the Kansas Entomological Society , 64(4), 438–443.[Web of Science ®] , [Google Scholar]) as a synonym of E. fernandoi, is treated here as a separate species from the latter. Easkia kuiterti, which was also synonymised with E. ventidioides Lundlblad, 1933 by Polhemus (1992 Polhemus, J.T . (1992), ‘Nomenclatural Notes on Aquatic and Semiaquatic Heteroptera’ [Short communications], Journal of the Kansas Entomological Society , 64(4), 438–443.[Web of Science ®] , [Google Scholar]), is considered valid species. http://zoobank.org/urn:lsid:zoobank.org:pub:F6E94274-2305-4096-9186-2D799124E2FA     

Creating a human head finite element model using a multi-block approach for predicting skull response and brain pressure

To better understand head injuries, human head finite element (FE) models have been reported in the literature. In scenarios where the head is directly impacted and measurements of head accelerations are not available, a high-quality skull model, as well as a high-quality brain model, is needed to predict the effect of impact on the brain through the skull. Furthermore, predicting cranial bone fractures requires comprehensively validated skull models. Lastly, high-quality meshes for both the skull and brain are needed for accurate strain/stress predictions across the entire head. Hence, we adopted a multi-block approach to develop hexahedral meshes for the brain, skull, and scalp simultaneously, a first approach in its kind. We then validated our model against experimental data of brain pressures (Nahum et al., 1977 Nahum AM, Smith R, Ward CC. 1977. Intracranial pressure dynamics during head impact. Proceedings of the 21st Stapp Car Crash Conference, SAE Paper No. 770922; Warrendale, PA: Society of Automotive Engineers.[Crossref] , [Google Scholar]) and comprehensive skull responses (Yoganandan et al., 1995 Yoganandan N, Pintar FA, Sances A, Jr., Walsh PR, Ewing CL, Thomas DJ, Snyder RG. 1995. Biomechanics of skull fracture. J Neurotrauma. 12(4):659–668.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar], Yoganandan et al., 2004 Yoganandan N, Zhang J, Pintar FA. 2004. Force and acceleration corridors from lateral head impact. Traffic Injury Prevention. 5(4):368–373.[Taylor &; Francis Online] , [Google Scholar], and Raymond et al., 2009 Raymond D, Van Ee C, Crawford G, Bir C. 2009. Tolerance of the skull to blunt ballistic temporo-parietal impact. J Biomech. 42(15):2479–2485.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). We concluded that a human head FE model was developed with capabilities to predict blunt- and ballistic-impact-induced skull fractures and pressure-related brain injuries.     

Mercury risks versus nutritional benefits of tribal commercial fish harvests in the Upper Laurentian Great Lakes

The Inter-Tribal Fisheries and Assessment Program (ITFAP) of the Chippewa Ottawa Resource Authority (CORA) in Sault Ste. Marie, Michigan, has been monitoring contaminant concentrations in the fillet portions of lake trout (Salvelinus namaycush) and lake whitefish (Coregonus clupeaformis) from the waters of lakes Superior, Huron, and Michigan since 1991. The primary purpose of this article is to present a risk quantification of methylmercury (MeHg) that is adjusted for nutritional benefit, originally presented by Ginsberg and Toal (2009 Ginsberg GL and Toal BF. 2009. Quantitative approach for incorporating methylmercury risks and omega-3 fatty acid benefits in developing species-specific fish consumption advice. Environ Health Perspect 117:267–75[Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2015) on trends in contaminant concentrations in fillet portions of these commercial fish that we recently reported in Dellinger et al. (2014 Dellinger JA, Moths MD, Dellinger M, et al. 2014. Contaminant trends in freshwater fish from the Great Lakes: A 20 year analysis. Hum Ecol Risk Assess 20:461–78[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). Both species of fish caught by tribal fishermen showed clear benefits to cardiovascular health and infant neurodevelopment if consumed at a rate of six ounces per week. However, other popularly consumed fish such as cod, tuna, and tilapia are estimated to have only marginal benefit or net negative effects on cardiovascular health and infant neurodevelopment. This dynamic assessment of benefits and risks further demonstrates the importance of traditionally caught fish in tribal health.     

Teaching Bernoulli's Principle through Demonstrations

ABSTRACT

One proven strategy to help students make sense of abstract concepts is to sequence instruction so students have exploratory opportunities to investigate science before being introduced to new science explanations (Abraham and Renner 1986 Abraham, M. R. and Renner, J. W. 1986. The sequence of learning cycle activities in high school chemistry. Journal of Research in Science Teaching, 23: 121–143. [Crossref], [Web of Science ®] , [Google Scholar]; Renner, Abraham, and Birnie 1988 Renner, J. W., Abraham, M. R. and Birnie, H. H. 1988. The necessity of each phase of the learning cycle in teaching high school physics. Journal of Research in Science Teaching, 25: 39–58. [Crossref], [Web of Science ®] , [Google Scholar]). To help physical science teachers make sense of how to effectively sequence lessons, this article summarizes our experiences using an exploration–explanation sequence of instruction to teach Bernoulli's principle to prospective middle and secondary science teachers in a science methods course. We use demonstrations during our Bernoulli unit to help students go back and forth between their observations of phenomenon and what occurs on the microscopic level with what we have termed molecular talk. Students engage in guiding questions, consider their old and new understandings of science, and use evidence to construct new ideas during all stages of the lesson.     

Kindergarten Impacts of a Preschool Language-Focused Intervention

Many preschool language-focused interventions attempt to boost language and literacy skills in young children at risk in these areas of development, though the long-term effects of such interventions are not well-established. This study investigated kindergarten language and reading skills, specifically the subcomponents of vocabulary, decoding, and reading comprehension, for children exposed to the language-focused intervention Learning Language and Loving It (LLLI; Weitzman &; Greenberg, 2002 Weitzman, E. &; Greenberg, J. (2002). Learning language and loving it. Toronto, Canada: The Hanen Centre. [Google Scholar]) during preschool. End of kindergarten skills were examined, comparing children whose teachers implemented LLLI (n = 25) or business-as-usual (BAU) instruction (n = 24). Hierarchical linear modeling results showed the LLLI intervention to have significant effects on children's decoding and reading comprehension in kindergarten for children who had high levels of language skill at preschool, as compared to their counterparts in the BAU condition. Study findings therefore indicate that preschool language-focused interventions may primarily benefit children with higher skill levels. This suggests the need to explore avenues for addressing the needs of children with relatively low language skills during preschool and the eventual transition to reading.     

Re-thinking Contemporary Activism: From Community to Emplaced Sociality

This article explores the relationship between activism, sociality and place. It analyses a case-study of selected social relations produced through activities related to an urban social movement - the UK network of the international Cittàslow (Slow City) movement. It specifically examines how social relationships contribute to the human agency that Cittàslow activism involves. In a recent Cultural Studies analysis of the Cittàslow movement, Wendy Parkins and Geoffrey Craig (2006) Parkins, Wendy and Geoffrey, Craig. 2006. Slow Living, Oxford: Berg. [Crossref] , [Google Scholar] have suggested that Cittàslow ‘communities’ drive processes of change. Here, following social anthropologists (Creed 2006; Amit in Amit &; Rapport 2002) who call for an interrogation of the concept of ‘community’ in its local and academic uses, I propose a different analytical route. I suggest that Cittàslow activism is better understood by analysing how agency is produced through actual local embodied social relationships.     

Computer simulations of the two-species model for the melting curve maximum

The existence of extrema, maximum and/or minimum and negative gradients of melting curves observed for several elements at high pressure is investigated by molecular dynamics simulation using the two-species model (TSM) proposed by Ogura et al. [1 OguraH, MatsudaH, OgawaT, OgitaN, UedaA. Computer simulation for the melting curve maximum phenomenon. Prog Theor Phys. 1977;58:419–433.[Crossref], [Web of Science ®] , [Google Scholar]]. TSM is a model which imitates the change in the electronic structure of an atom in terms of a species change in particles. The TSM phase diagram has two solid phases and one liquid phase with a solid–solid–liquid triple point which corresponds to the melting curve minimum. The melting curve has both a maximum and a minimum, and the gradient of the melting curve is negative between these extrema. These peculiar melting curve properties and phase diagram are common to alkali metals and some other elements.     

The Dangerous Myth of Emerging Adulthood: An Evidence-Based Critique of a Flawed Developmental Theory

This article examines the theory of emerging adulthood, introduced into the literature by Arnett (2000 Arnett , J. J. ( 2000 ). Emerging adulthood: A theory of development from the late teens through the twenties . American Psychologist , 55 , 469 – 480 .[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), in terms of its methodological and evidential basis, and finds it to be unsubstantiated on numerous grounds. Other, more convincing, formulations of variations in the transition to adulthood are examined. Most flawed academic theories are simply ignored by scientists. However, Arnett's unsubstantiated formulations have found their way to journalists, who are influencing public opinion, and policymakers, who are determining the fate of youth populations. As such, the article argues that an academic myth is being created that has serious economic and emotional repercussions for the many young people facing difficult circumstances in their transition to adulthood. Consequently, this myth requires corrections from the scientific community, one of which is provided here.     

VEGF-A121a binding to Neuropilins – A concept revisited

All known splice isoforms of vascular endothelial growth factor A (VEGF-A) can bind to the receptor tyrosine kinases VEGFR-1 and VEGFR-2. We focus here on VEGF-A121a and VEGF-A165a, two of the most abundant VEGF-A splice isoforms in human tissue^{1 Kut C, Mac Gabhann F, Popel AS. Where is VEGF in the body? A meta-analysis of VEGF distribution in cancer. Br J Cancer. 2007;97:978-85. doi:10.1038/sj.bjc.6603923. PMID:17912242.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]}, and their ability to bind the Neuropilin co-receptors NRP1 and NRP2. The Neuropilins are key vascular, immune, and nervous system receptors on endothelial cells, neuronal axons, and regulatory T cells respectively. They serve as co-receptors for the Plexins in Semaphorin binding on neuronal and vascular endothelial cells, and for the VEGFRs in VEGF binding on vascular and lymphatic endothelial cells, and thus regulate the initiation and coordination of cell signaling by Semaphorins and VEGFs.^{2 Guo HF, Vander Kooi CW. Neuropilin Functions as an Essential Cell Surface Receptor. J Biol Chem. 2015;290:29120-6. doi:10.1074/jbc.R115.687327. PMID:26451046.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]} There is conflicting evidence in the literature as to whether only heparin-binding VEGF-A isoforms – that is, isoforms with domains encoded by exons 6 and/or 7 plus 8a – bind to Neuropilins on endothelial cells. While it is clear that VEGF-A165a binds to both NRP1 and NRP2, published studies do not all agree on the ability of VEGF-A121a to bind NRPs. Here, we review and attempt to reconcile evidence for and against VEGF-A121a binding to Neuropilins. This evidence suggests that, in vitro, VEGF-A121a can bind to both NRP1 and NRP2 via domains encoded by exons 5 and 8a; in the case of NRP1, VEGF-A121a binds with lower affinity than VEGF-A165a. In in vitro cell culture experiments, both NRP1 and NRP2 can enhance VEGF-A121a-induced phosphorylation of VEGFR2 and downstream signaling including proliferation. However, unlike VEGFA-165a, experiments have shown that VEGF-A121a does not ‘bridge’ VEGFR2 and NRP1, i.e. it does not bind both receptors simultaneously at their extracellular domain. Thus, the mechanism by which Neuropilins potentiate VEGF-A121a-mediated VEGFR2 signaling may be different from that for VEGF-A165a. We suggest such an alternate mechanism: interactions between NRP1 and VEGFR2 transmembrane (TM) and intracellular (IC) domains.     

Rotifers from a humic coastal lagoon of Rio de Janeiro State,Brazil

Abstract

A four-year study of species composition of the zooplankton community was conducted at Lagoa Comprida, a Brazilian coastal lagoon. Forty-two species of rotifers were recorded and illustrated. All rotifer species, except Lecane boettgeri Koste, 1986 and Macrochaetus kostei, José de Paggi, Branco &; Kozlowsky-Suzuki, 2000 José de Paggi, S, Branco, C WC and Kozlowsky-Suzuki, B. 2000. A new species of Macrochaetus (Rotifera, Trichotriidae) in a coastal lagoon of Rio de Janeiro State (Brazil). Stud Neotrop Fauna &; Environm, 35: 157–160. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar], have already been found in other areas of Brazil. Some factors, which probably favored the dominant richness and density of rotifers in the zooplankton community, are discussed.     

Integrative taxonomy of the cave-dwelling mysids of the genus Hemimysis

The genus Hemimysis (Malacostraca: Mysida: Mysidae) encompasses near-bottom, demersal and cave-dwelling mysids living in the marine, brackish and freshwater habitats around the European coast, from the Caspian Sea to the Scandinavian Peninsula. We conducted cladistic analysis of 52 morphological characters of all nine species and three subspecies of the genus Hemimysis. We also completed a molecular analysis based on three molecular markers of Hemimysis lamornae (Couch, 1856) found in the English Channel, the Mediterranean Sea, and the Black Sea. Both analyses did not support monophyly of Hemimysis lamornae. We thus consider the former subspecies H. lamornae pontica (Czerniavsky, 1882 Chevaldonné, P., &; Lejeusne, C. (2003). Regional warming‐induced species shift in north‐west Mediterranean marine caves. Ecology Letters, 6, 371–379. doi:10.1046/j.1461-0248.2003.00439.x.[Crossref], [Web of Science ®] , [Google Scholar]) and H. lamornae mediterranea Bacescu, 1936 Bacescu, M. (1936). Hemimysis lamornae sbsp. reducta, nov. sbsp. et Hemimysis anomala dans les eaux roumaines de la Mer Noire (avec une etude comparative des forms de Hem. lamornae des autres mers: H. l. typica et H.l. mediterranea, nov. sbsp.). Annales Scientifiques de L’Universite de Jassy, 23, 331–338. [Google Scholar] as valid species. Analysis of mitochondrial cytochrome oxidase subunit I (COI) sequences of H. pontica shows no significant divergence between mysids living in the marine caves of Crimea and Bulgaria. Morphological trends in Hemimysis are discussed, H. pontica Czerniavsky, 1882 Chevaldonné, P., &; Lejeusne, C. (2003). Regional warming‐induced species shift in north‐west Mediterranean marine caves. Ecology Letters, 6, 371–379. doi:10.1046/j.1461-0248.2003.00439.x.[Crossref], [Web of Science ®] , [Google Scholar] is redescribed, and a new key to all 11 species of the genus is given.     

Ladislavella tumrokensis: The first molecular evidence of a Nearctic clade of lymnaeid snails inhabiting Eurasia

In this study, we provide the first molecular evidence for a possible connection between freshwater mollusc faunas across the Bering Strait via the Beringian Land Bridge using data inferred from gastropods of the family Lymnaeidae. The gastropods collected from geothermal springs in the Tumrok Mountains, West Kamchatka, Russia, share the nuclear internal transcribed spacer 2 (ITS2) and the cytochrome oxidase subunit I gene (COI) haplotypes, thus being as sister to those recorded for lymnaeid snails in the Stagnicola elodes group from Canada and the USA. Two lymnaeid species, Lymnaea (Orientogalba) tumrokensis Kruglov and Starobogatov, 1985 Kruglov, N. D., & Starobogatov, Y. I. (1985). Ob'yom podroda Galba i skhodnykh s nim podrodov roda Lymnaea [The volume of the subgenus Galba and of the other similar subgenera of the genus Lymnaea (Gastropoda, Pulmonata)]. Zoologicheskiy Zhurnal, 64, 24–35.[Web of Science ®] , [Google Scholar] and Lymnaea (Polyrhytis) kurenkovi Kruglov and Starobogatov, 1989 Kruglov, N. D., & Starobogatov, Y. I. (1989). Mollyuski podroda Polyrhytis roda Lymnaea fauny SSSR (Pulmonata, Lymnaeidae) [Molluscs of the subgenus Polyrhytis of the genus Lymnaea of the fauna of the USSR (Pulmonata, Lymnaeidae)]. Zoologicheskiy Zhurnal, 68, 14–20.[Web of Science ®] , [Google Scholar], were described from the Tumrok geothermal locality, but actually they are morphological variations of a single taxon of subspecies rank re-classified here as Ladislavella catascopium tumrokensis. This subspecies is the first discovered representative in the genus, which formed a dwarf race in a geothermal habitat. Our findings highlight the possible exchange between freshwater faunas in Beringia during the Pleistocene and an important role of geothermal ecosystems as possible cryptic refugia for freshwater hydrobionts.