Abstract
Our analysis of Alona cf. affinis (Cladocera: Chydoridae) populations from European Russia, Siberia and Far East of Russia bearing denticles at the posteroventral corner, based on both their morphology and genetic study considering variability of mitochondrial COI and 16S and nuclear 18S genes, revealed that they belong to a separate taxon described here as Alona sibirica sp. nov. Previously populations with denticles at the posteroventral corner were recorded from Sweden, Finland, Ukraine, European Russia, Kyrgyzstan and Mongolia, but never reported outside the temperate regions of Eurasia, so A. sibirica sp. nov. is presumably the only species of the A. affinis group with denticles at the posteroventral corner of the valves. The primary distribution area of the new species is North-East Palaearctic, while Eastern Europe and Central Asia are the areas of the species penetration, where it is less common and frequently coexisting with A. affinis s. str.
References
Alonso, M. (1991) Review of Iberian Cladocera with remarks on ecology and biogeography. Hydrobiologia, 225, 37–43.
https://doi.org/10.1007/978-94-017-0918-7_4
Alonso, M. (1996) Crustacea, Branchiopoda. Vol. 7. Fauna Iberica. Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, Madrid, 486 pp.
Artamonova, V.S., Makhrov, A.A., Karabanov, D.P., Rolskiy, A.Y., Bakay, Y.I. & Popov, V.I. (2013) Hybridization of beaked redfish (Sebastes mentella) with small redfish (Sebastes viviparus) and diversification of redfish (Actinopterygii: Scorpaeniformes) in the Irminger Sea. Journal of Natural History, 47, 1791–1801.
https://doi.org/10.1080/00222933.2012.752539
Baird, W. (1843) The natural history of the British Entomostraca. VI. The Annals and Magazine of Natural History, Series 1, 11 (68), 81–95.
Behning, A.L. (1941) The Cladocerans of the Caucasus. Gruzmedgiz Publishing, Tbilisi, 384 pp. [in Russian]
Bekker, E.I., Karabanov, D.P., Galimov, Y.R. & Kotov, A.A. (2016) DNA barcoding reveals high cryptic diversity in the North Eurasian Moina species (Crustacea: Cladocera). PloS ONE, 11 (8), e0161737.
https://doi.org/10.1371/journal.pone.0161737
Bekker, E.I., Karabanov, D.P., Galimov, Y.R., Haag, C.R., Neretina, T.V. & Kotov, A.A. (2018) Phylogeography of Daphnia magna Straus (Crustacea: Cladocera) in Northern Eurasia: Evidence for a deep longitudinal split between mitochondrial lineages. PLoS ONE, 13 (3), e0194045.
https://doi.org/10.1371/journal.pone.0194045
Belyaeva, M. & Taylor, D.J. (2009) Cryptic species within the Chydorus sphaericus species complex (Crustacea: Cladocera) revealed by molecular markers and sexual stage morphology. Molecular Phylogenetics and Evolution, 50, 534–546.
https://doi.org/10.1016/j.ympev.2008.11.007
Boratyn, G.M., Camacho, C., Cooper, P.S., Coulouris, G., Fong, A., Ma, N., Madden, T.L., Matten, W.T., McGinnis, S.D., Merezhuk, Y., Raytselis, Y., Sayers, E. W., Tao, T., Ye, J. & Zaretskaya, I. (2013) BLAST: a more efficient report with usability improvements. Nucleic acids research, 41, W29–33.
https://doi.org/10.1093/nar/gkt282
Bouckaert, R., Vaughan, T.G., Barido-Sottani, J., Duchene, S., Fourment, M., Gavryushkina, A., Heled, J., Jones, G., Kuhnert, D., de Maio, N., Matschiner, M., Mendes, F.K., Muller, N., Ogilvie, H.A., du Plessis, L., Popinga, A., Rambaut, A., Rasmussen, D., Siveroni, I., Suchard, M., Wu, C.-H., Xie, D., Zhang, C., Stadler, T. & Drummond, A.J. (2019) BEAST 2.5: An advanced software platform for Bayesian evolutionary analysis. PLoS Computational Biology, 15 (4), e1006650.
https://doi.org/10.1371/journal.pcbi.1006650
Chernomor, O., vonHaeseler, A. & Minh, B.Q. (2016) Terrace aware data structure for phylogenomic inference from supermatrices. Systematic Biology, 65 (6), 997–1008.
https://doi.org/10.1093/sysbio/syw037
Chifman, J. & Kubatko, L. (2015) Identifiability of the unrooted species tree topology under the coalescent model with time-reversible substitution processes, site-specific rate variation, and invariable sites. Journal of Theoretical Biology, 374, 35–47.
https://doi.org/10.1016/j.jtbi.2015.03.006
Collins, R., Boykin, L.M., Cruickshank, R.H. & Armstrong, K.F. (2012) Barcoding’s next top model: An evaluation of nucleotide substitution models for specimen identification. Methods in Ecology and Evolution, 3 (3), 457–465.
https://doi.org/10.1111/j.2041-210X.2011.00176.x
Dumont, H.J. & Silva-Briano, M. (2000) Karualona n. gen. (Anomopoda: Chydoridae), with a description of two new species, and a key to all known species. Hydrobiologia, 435, 61–82.
https://doi.org/10.1023/A:1004006521874
Flössner, D. (1972) Krebstiere, Crustacea (Kiemen- und Blattfüßer, Branchiopoda, Fischläuse, Branchiura). Die Tierwelt Deutschlands, 60, 1–499.
Flössner, D. (2000) Die Haplopoda und Cladocera (ohne Bosminidae) Mitteleuropas. Backhuys, Leiden, 428 pp.
Frey, D.G. (1988) Alona weinecki Studer on the subantarctic islands, not Alona rectangula Sars (Chydoridae, Cladocera). Limnology and Oceanography, 33, 1386–1411.
https://doi.org/10.4319/lo.1988.33.6.1386
Frey, D.G. (1991) The species of Pleuroxus and of three related genera (Anomopoda, Chydoridae) https://doi.org/in Southern Australia and New Zealand. Records of the Australian Museum, 43, 291–372.
https://doi.org/10.3853/j.0067-1975.43.1991.49
Frey, D.G. (1993) Species of Pleuroxus (Anomopoda, Chydoridae) from the subantarctic islands and southernmost South America: a partial unravelling of the Pleuroxus aduncus problem. Hydrobiologia, 262, 145–188.
https://doi.org/10.1007/BF00010882
Fu, Y.X. (1997) Statistical tests of neutrality of mutations against population growth, hitchhiking and background selection. Genetics, 147, 915–925.
Garibian, P.G., Chertoprud, E.S., Sinev, A.Y., Korovchinsky, N.M. & Kotov, A.A. (2019) Cladocera and Copepoda (Crustacea: Branchiopoda) of the Lake Bolon and its basin (Far East of Russia). Arthropoda Selecta, 28 (1), 37–63.
https://doi.org/10.15298/arthsel.28.1.05
Garibian, P.G., Neretina, A.N., Klimovsky, A.I. & Kotov, A.A. (2018) A new case of West-East differentiation of the freshwater fauna in Northern Eurasia: the Pleuroxus trigonellus species group (Crustacea: Cladocera: Chydoridae). Zootaxa, 4532 (4), 451–482.
https://doi.org/10.11646/zootaxa.4532.4.1
Gerard, K., Roby, C., Chevalier, N., Thomassin, B., Chenuil, A. & Feral, J.P. (2008) Assessment of three mitochondrial loci variability for the crown-of-thorns starfish: a first insight into Acanthaster phylogeography. Comptes Rendus Biologies, 331, 137–143.
https://doi.org/10.1016/j.crvi.2007.11.005
Hebert, P.D.N., Stoeckle, M.Y., Zemlak, T.S. & Francis, C.M. (2004) Identification of Birds through DNA Barcodes. PLoS Biology, 2 (10), e312.
https://doi.org/10.1371/journal.pbio.0020312
Heled, J. & Drummond, A.J. (2010) Bayesian inference of species trees from multilocus data. Molecular Biology and Evolution, 27, 570–580.
https://doi.org/10.1093/molbev/msp274
Herbst, H.V. (1962) Blattfűsskrebse (Phyllopoden: Echte Blattfűsser und Wasserflőhe). Kosmos, Stuttgart, 130 pp.
Hudec, I. (2010) Anomopoda, Ctenopoda, Haplopoda, Onychopoda (Crustacea: Branchiopoda). Fauna Slovenska III. VEDA, Bratislava, 496 pp.
Ji, G.H., Xiang, X.F., Chen, S.Z., Yu, G.L., Kotov, A.A. & Dumont, H.J. (2015) Annotated Checklist of Chinese Cladocera (Crustacea: Branchiopoda). Part II. Order Anomopoda (families Macrotrichidae, Eurycercidae and Chydoridae). Zootaxa, 4044 (2), 241–269.
https://doi.org/10.11646/zootaxa.4044.2.4
Jones, G. (2017) Algorithmic improvements to species delimitation and phylogeny estimation under the multispecies coalescent. Journal of Mathematical Biology, 74, 447–467.
https://doi.org/10.1007/s00285-016-1034-0
Kalyaanamoorthy, S., Minh, B.Q., Wong, T.K.F., von Haeseler, A. & Jermiin, L.S. (2017) ModelFinder: Fast model selection for accurate phylogenetic estimates. Nature Methods, 14, 587–589.
https://doi.org/10.1038/nmeth.4285
Kapli, P., Lutteropp, S., Zhang, J., Kobert, K., Pavlidis, P., Stamatakis, A. & Flouri, T. (2017) Multi-rate Poisson tree processes for single-locus species delimitation under maximum likelihood and Markov chain Monte Carlo. Bioinformatics, 33, 1630–1638.
https://doi.org/10.1093/bioinformatics/btx025
Katoh, K., Rozewicki, J. & Yamada, K.D. (2019) MAFFT online service: Multiple sequence alignment, interactive sequence choice and visualization. Briefings in Bioinformatics, 20 (4), 1160–1166.
https://doi.org/10.1093/bib/bbx108
Korovchinsky, N.M. (2006) The Cladocera (Crustacea: Branchiopoda) as a relict group. Zoological Journal of the Linnean Society, 147, 109–124.
https://doi.org/10.1111/j.1096-3642.2006.00217.x
Korovchinsky, N.M. (2009) The genus Leptodora Lilljeborg (Crustacea: Branchiopoda: Cladocera) is not monotypic: description of a new species from the Amur River basin (Far East of Russia). Zootaxa, 2120 (1), 39–52.
https://doi.org/10.11646/zootaxa.2120.1.5
Kotov, A.A., Jeong, H.J. & Lee, W. (2012) Cladocera (Crustacea: Branchiopoda) of the south-east of the Korean Peninsula, with twenty new records for Korea. Zootaxa, 3368 (1), 50–90.
https://doi.org/10.11646/zootaxa.3368.1.4
Kotov, A.A., Karabanov, D.P., Bekker, E.I., Neterina, T.V. & Taylor, D.J. (2016) Phylogeography of the Chydorus sphaericus group (Cladocera: Chydoridae) in the Northern Palearctic. PLoS ONE, 11 (12), e0168711.
https://doi.org/10.1371/journal.pone.0168711
Kotov, A.A., Sinev, A.Y., Garibian, P.G., Neretina, A.N., Jeong, H.G., Lee, W., Chae, K.S. & Min, G.S. (2018) Recent progress in studies of the Cladocera (Crustacea: Branchiopoda) of South Korea with seven new records for the Korean Peninsula. Journal of Species Research, 6, 227–246.
https://doi.org/10.11646/zootaxa.3368.1.4
Kotov, A.A. & Taylor, D.J. (2019) Contrasting endemism in pond-dwelling cyclic parthenogens: the Daphnia curvirostris species group (Crustacea: Cladocera). Scientific Reports, 9, 6812.
https://doi.org/10.1038/s41598-019-43281-9
Kultti, S., Nevalainen, L., Luoto, T.P. & Sarmaja-Korjonen, K. (2011) Subfossil chydorid (Cladocera, Chydoridae) ephippia as paleoenvironmental proxies — Evidence from boreal and subarctic lakes in Finland. Hydrobiologia, 676, 23–37.
https://doi.org/10.1007/s10750-011-0869-z.
Kumar, S., Stecher, G., Li, M., Knyaz, C. & Tamura, K. (2018) MEGA X: Molecular Evolutionary Genetics Analysis across Computing Platforms. Molecular Biology and Evolution, 35, 1547–1549.
https://doi.org/10.1093/molbev/msy096
Kurenkov, I.I. (2005) Zooplankton of the lakes of Kamchatka. Kamchatka Research Institute of Fisheries and Oceanography, Petropavlovsk-Kamchatskiy, 178 pp.
Leydig, F. (1860) Naturgeschichte der Daphniden. H. Laupp’sche Buchhandlung, Laupp & Siebeck, Tübingen, 252 pp.
Liévin, F. (1848) Die Branchiopoda der Danziger Geden, ein Beitrag zur Fauna der Provinz Preussen. Neueste Schriften der Naturforschenden Gesellschaft in Danzig, 2 (4), 1–52.
Lilljeborg, W. (1901) Cladocera Sueciae. Nova acta regiae societatis scientatis scientiarum upsaleinsis, Seriei Tertiae, 19, 1–701.
Margaritora, F.G. (1985) Cladocera. Fauna d’ltalia. Vol. 23. Edizioni Calderini, Bologna, 399 pp.
Millette, K.L., Xu, S., Witt, J.D.S. & Cristescu, M.E. (2011) Pleistocene-driven diversification in freshwater zooplankton: Genetic patterns of refugial isolation and postglacial recolonization in Leptodora kindtii (Crustacea, Cladocera). Limnology and Oceanography, 56, 1725–1736.
https://doi.org/10.4319/lo.2011.56.5.1725
Minh, B.Q., Nguyen, M.A.T. & von Haeseler, A. (2013) Ultrafast approximation for phylogenetic bootstrap. Molecular Biology and Evolution, 30, 1188–1195.
https://doi.org/10.1093/molbev/mst024
Müller, P.E. (1867) Danmarks Cladocera. Naturhistorisk Tidskrift, Koebenhavn, 3 (5), 53–240.
Negrea, S. (1983) Cladocera. Fauna Republicii Socialiste România, Bucureşti. Crustacea, 4 (12), 1–399.
Novichkova, A.A. & Chertoprud, E.S. (2016) The freshwater crustaceans (Cladocera: Copepoda) of Bering Island (Commander Islands, Russian Far East): species richness and taxocene structure. Journal of Natural History, 50, 1357–1368.
https://doi.org/10.1080/00222933.2015.1113319
Okonechnikov, K., Golosova, O. & Fursov, M. (2012) Unipro UGENE: a unified bioinformatics toolkit. Bioinformatics, 28, 1166–1167.
https://doi.org/10.1093/bioinformatics/bts091
Popova, E.V., Petrusek, A., Kořínek, V., Mergeay, J., Bekker, E.I., Karabanov, D.P., Galimov, Y.R., Neretina, T.V., Taylor, D.J. & Kotov, A.A. (2016) Revision of the Old World Daphnia (Ctenodaphnia) similis group (Cladocera: Daphniidae). Zootaxa, 4161 (1), 1–40.
https://doi.org/10.11646/zootaxa.4161.1.1
Posada, D. & Crandall, K.A. (2001) Selecting the best-fit model of nucleotide substitution. Systematic Biology, 50, 580–601.
https://doi.org/10.1080/106351501750435121
Radzimovskiy, V.D. (1979) On finding of the subspecies of Biapertura affinis (Leydig, 1860) (Crustacea, Cladocera) in Ukraine. Vestnik Zoologii, 4, 88–91.
Rambaut, A., Drummond, A.J., Xie, D., Baele, G. & Suchard, M.A. (2018) Posterior summarization in Bayesian phylogenetics using Tracer 1.7. Systematic Biology, 67, 901–904.
https://doi.org/10.1093/sysbio/syy032
Ramos-Onsins, S.E. & Rozas, J. (2002) Statistical properties of new neutrality tests against population growth. Molecular Biology and Evolution, 19, 2092–2100.
https://doi.org/10.1093/oxfordjournals.molbev.a004034
Reid, N.M. & Carstens, B.C. (2012) Phylogenetic estimation error can decrease the accuracy of species delimitation: a Bayesian implementation of the general mixed Yule-coalescent model. BMC Evolutionary Biology, 12, 196.
https://doi.org/10.1186/1471-2148-12-196
Reumont, B.M., Meusemann, K., Szucsich, N.U., Dell’Ampio, E., Gowri-Shankar, V., Bartel, D., Simon, S., Letsch, H.O., Stocsits, R.R., Luan, Y., Wägele, J.W., Pass, G., Hadrys, H. & Misof, B. (2009) Can comprehensive background knowledge be incorporated into substitution models to improve phylogenetic analyses? A case study on major arthropod relationships. BMC Evolutionary Biology, 9, 119.
https://doi.org/10.1186/1471-2148-9-119
Røen, U. (1968) Notes on abnormalities in freshwater Entomostraca with a description of a new subspecies, Alona affinis dentata. Videnskabelige Meddelelser fra Dansk naturhistorisk Fore-ning, 131, 153–159.
Rozas, J., Ferrer-Mata, A., Sánchez-DelBarrio, J.C., Guirao-Rico, S., Librado, P., Ramos-Onsins, S.E. & Sánchez-Gracia, A. (2017) DnaSP 6: DNA Sequence Polymorphism Analysis of Large Data Sets. Molecular Biology and Evolution, 34, 3299–3302.
https://doi.org/10.1093/molbev/msx248
Sacherová, V. & Hebert, P.D.N. (2003) The evolutionary history of the Chydoridae (Crustacea: Cladocera). Biological Journal of the Linnean Society, 79, 629–643.
https://doi.org/10.1046/j.1095-8312.2003.00216.x
Sayers, E.W., Cavanaugh, M., Clark, K., Ostell, J., Pruitt, K.D. & Karsch-Mizrachi, I. (2019) GenBank. Nucleic Acids Research, 47, D94–D99.
https://doi.org/10.1093/nar/gky989
Scher, O., Defaye, D., Korovchinsky, N.M. & Thiéry, A. (2000) The crustacean fauna (Branchiopoda, Copepoda) of shallow fresh water bodies in Iceland. Veztnik Zoologii, 34 (6), 11–25.
Schödler, J.E. (1863) Neue Beiträge zur Naturgeschichte der Cladoceren (Crustacea Cladocera). Verlag von August Hirschwald, Berlin, 80 pp.
Scourfield, D.J. & Harding, J.P. (1966) A key to the British freshwater Cladocera. 3rd edition. Freshwater British Association, Scientific Publication, 5, 1–55.
Sinev, A.Y. (1997) Review of the affinis-group of Alona Baird, 1843, with the description of a new species from Australia (Anomopoda Chydoridae). Arthropoda Selecta, 6 (3–4), 47–58.
Sinev, A.Y. (1998) Alona ossiani sp. n., a new species of the Alona affinis complex from Brasil, deriving from the collection of G. O. Sars (Anomopoda Chydoridae). Arthropoda Selecta, 7 (2), 103–110.
Sinev, A.Y. (2000) Postembryonal development of male and abnormal sexual individuals of Alona affinis (Leydig, 1860) (Anomopoda, Chydoridae). Hydrobiologia, 437, 197–202.
https://doi.org/10.1023/A:1026515226055
Sinev, A.Y. (2001) Distribution and polymorphism of Alona rectangula Sars, 1862 (Branchiopoda: Anomopoda: Chydoridae) in Russia and surrounding countries. Arthropoda Selecta, 10 (2), 83–86.
Sinev, A.Y. (2009) Cladocerans of the Alona affinis (Leydig, 1860) group from South Africa. Zootaxa, 1990, 41–54.
https://doi.org/10.11646/zootaxa.1990.1.3
Sinev, A.Y. (2013) Cladocerans of Alona affinis group (Cladocera: Anomopoda: Chydoridae) from North America. Zootaxa, 3693, 329–343.
https://doi.org/10.11646/zootaxa.3693.3.3
Sinev, A.Y. (2014) A comparative morphological analysis of four species of Camptocercus Baird, 1843 (Cladocera: Anomiopoda: Chydoridae). Zootaxa, 3895 (2), 183–207.
https://doi.org/10.11646/zootaxa.3895.2.3
Sinev, A.Y. (2018) Genus Camptocercus (Cladocera: Anomopoda: Chydoridae) in North America. Zootaxa, 4459 (1), 583–599.
https://doi.org/10.11646/zootaxa.4459.3.11
Sinev, A.Y. & Atroshenko, M.M. (2011) Revision of the genus Alonopsis Sars, 1862 and its position within Aloninae (Cladocera: Anomopoda: Chydoridae). Zootaxa, 2800 (1), 1–17.
https://doi.org/10.11646/zootaxa.2800.1.1
Sinev, A.Y. & Kotov, A.A. (2014) Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Cladocera: Chydoridae). Zootaxa, 3841 (2), 188–210.
https://doi.org/10.11646/zootaxa.3841.2.2
Smirnov, N.N. (1971) Chydoridae of the world fauna. Fauna SSSR, Rakoobraznie, 1 (2), 1–531. [in Russian]
Smirnov, N.N. (1976) Macrothricidae and Moinidae of the World fauna. Fauna SSSR, Novaya Seriya, Rakoobraznye, 1 (3), 1–237. [in Russian]
Smirnov, N.N. (1992) The Macrothricidae of the world. Guides to the identification of the microinvertebrates of the Continental Waters of the world. Vol. 1. SPB Academic Publishing, The Hague, 143 pp.
Smirnov, N.N. (1996) Cladocera: the Chydorinae and Sayciinae (Chydoridae) of the world. Guides to the identification of the microinvertebrates of the Continental Waters of the world. Vol. 11. SPB Academic Publishing, Amsterdam, 197 pp.
Smirnov, N.N. & Kotov, A.A. (2018). On morphological radiation of Cladocera (Crustacea). Invertebrate Zoology, 15 (3), 231–248.
https://doi.org/10.15298/invertzool.15.3.03
Smirnov, N.N., Kotov, A.A. & Coronel, J. (2006) Partial revision of the aduncus-like species of Pleuroxus Baird, 1843 (Chydoridae, Cladocera) from the southern hemisphere with comments of subgeneric differentiation within the genus. Journal of Natural History, 40, 1617–1639.
https://doi.org/10.1080/00222930600958870
Smirnov, N.N. & Timms, B.V. (1983) A revision of the Australian Cladocera (Crustacea). Records of the Australian Museum, Supplement 1, 1–132.
https://doi.org/10.3853/j.0812-7387.1.1983.103
Stingelin, T. (1895) Die Cladoceren der Umgebung von Basel. Revue Suisse de Zoologie, 3, 161–274.
https://doi.org/10.5962/bhl.part.8298
Stingelin, T. (1906). Neue Beiträge zur Kenntnis der Cladocerenfauna der Schweiz. Revue Suisse de Zoologie, 14, 317–387.
Streletskaya, E.A. (2010) Review of the fauna of Rotatoria, Cladocera, and Copepoda of the basin of the Anadyr’ River. Contemporary Problems of Ecology, 3, 469–480.
https://doi.org/10.1134/S1995425510040119
Swofford, D. (2003) PAUP*. Phylogenetic Analysis Using Parsimony (* and other methods). Version 4. Sinauer Associates, Sunderland, Massachusetts. [program]
Tanaka, S. (1989) Occurrence of littoral Chydoridae (Crustacea, Cladocera) in Japan. Memoirs of the Faculty of Education Toyama University, Series B, Natural Sciences, 37, 1–13.
Tanaka, S., Sato, K., Ukihashi, M. & Inagaki, M. (1975) The plankters of four alpine lakes at Murodo-daira area on Mt. Tateyama in the Japanese Alps. Memoirs of the Faculty of Education Toyama University, Series B, Natural Sciences, 23, 97–106.
Trifinopoulos, J., Nguyen, L.T., von Haeseler, A. & Minh, B.Q. (2016) W-IQ-TREE: a fast online phylogenetic tool for maximum likelihood analysis. Nucleic Acids Research, 44, W232–235.
https://doi.org/10.1093/nar/gkw256
Van Damme, K. & Eggermont, H. (2011) The Afromontane Cladocera (Crustacea: Branchiopoda) of the Rwenzori (Uganda—D. R. Congo): taxonomy, ecology and biogeography. Hydrobiologia, 676, 57–100.
https://doi.org/10.1007/s10750-011-0892-0
Van Damme, K., Kotov, A.A. & Dumont, H.J. (2010) A checklist of names in Alona Baird 1843 (Crustacea: Cladocera: Chydoridae) and their current status: an analysis of the taxonomy of a lump genus. Zootaxa, 2330 (1), 1–63.
https://doi.org/10.11646/zootaxa.2330.1.1
Van Damme, K., Sinev, A.Y. & Dumont, H.J. (2011) Separation of Anthalona gen. n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines. Zootaxa, 2875 (1), 1–64.
https://doi.org/10.11646/zootaxa.2875.1.1
Werestchagin, G.Y. (1911a) On the Cladocera fauna of the Caucasus. Raboty laboratorii zoologicheskogo kabineta Imperatorskogo Warshawskogo universiteta, Warshawa, 1911, 1–17. [in Russian]
Werestchagin, G.Y. (1911) Zur Cladocerenfauna des Nowgorodischen Gouvernements (Waldayscher Bezirk). Zoologischer Anzeiger, 37, 553–561.
Xu, L., Han, B.P., Van Damme, K., Vierstraete, A., Vanfleteren, J.R. & Dumont, H.J. (2011) Biogeography and evolution of the Holarctic zooplankton genus Leptodora (Crustacea: Branchiopoda: Haplopoda). Journal of Biogeography, 38, 359–370.
https://doi.org/10.1111/j.1365-2699.2010.02409.x
Xu, S., Hebert, P.D.N., Kotov, A.A. & Cristescu, M.E. (2009) The non-cosmopolitanism paradigm of freshwater zooplankton: insights from the global phylogeography of the predatory cladoceran Polyphemus pediculus (Crustacea, Onychopoda). Molecular Ecology, 18, 5161–5179.
https://doi.org/10.1111/j.1365-294X.2009.04422.x
Zuykova, E.I., Simonov, E.P., Bochkarev, N.A., Taylor, D.J. & Kotov, A.A. (2018) Resolution of the Daphnia umbra problem (Crustacea: Cladocera) using an integrated taxonomic approach. Zoological Journal of the Linnean Society, 184, 969–998.
https://doi.org/10.1093/zoolinnean/zly015