Abstract
The first ever list of terrestrial enchytraeids of Eastern Dagestan includes 12 species belonging to five genera. Several species from studied localities may be assigned as undescribed, therefore additional comprehensive research of enchytraeid fauna from Eastern Dagestan is required. A new enchytraeid species of the genus Fridericia Michaelsen, 1889, Fridericia samurai sp. nov., is described from Eastern Dagestan, Russia. It clearly differs from other species of the genus by short and simple oesophageal appendages, not subdivided spermathecal diverticula, and the absence of spermathecal ectal glands and clitellum on ventral side.
References
Bely, A. & Wray, G. (2004) Molecular phylogeny of naidid worms (Annelida: Clitellata) based on cytochrome oxidase I. Molecular Phylogenetics and Evolution, 30 (1), 50–63. https://doi.org/10.1016/S1055-7903(03)00180-5
Beck, H.E., Zimmermann, N.E., McVicar, T.R., Vergopolan, N., Berg, A. & Wood, E.F. (2018) Present and future Köppen-Geiger climate classification maps at 1-km resolution. Scientific data, 5, 180214. https://doi.org/10.1038/sdata.2018.214
Buchholz, R. (1863) Beiträge zur Anatomie der Gattung Enchytraeus, nebst Angabe der um Königsberg vorkommenden Formen derselben. Schriften der königlichen physikalisch-ökonomischen Gesellschaft zu Königsberg, 3 (2), 93–132.
Cognetti, L. (1901) Gli Oligocheti della Sardegna. Bollettino dei Musei di Zoologia ed Anatomia comparata della Reale Università di Torino, 16 (404), 13–27.
Degtyarev, M., Korobushkin, D., Gongalsky, K. & Zaitsev, A. (2019) Enchytraeid community (Annelida, Clitellata, Enchytraeidae) and its dependence on edaphic conditions in rice agroecosystems in Russia. Russian Journal of Ecology, 50 (4), 384–390. https://doi.org/10.1134/S1067413619040064
Degtyarev, M., Lebedev, I., Kuznetsova, K. & Gongalsky, K. (2020) A history of study and new records of terrestrial enchytraeids (Annelida, Clitellata, Enchytraeidae) from the Russian Far East. Zookeys, 955, 79–96. https://doi.org/10.3897/zookeys.955.53106
Dózsa-Farkas, K., Felföldi, T. & Hong, Y. (2015) New enchytraeid species (Enchytraeidae, Oligochaeta) from Korea. Zootaxa, 4006 (1), 171–197. https://doi.org/10.11646/zootaxa.4006.1.9
Dózsa-Farkas, K., Nagy, H. & Felföldi, T. (2019) Two new species of Fridericia (Annelida: Enchytraeidae) from Hungarian caves. European Journal of Taxonomy, 553, 1–18. https://doi.org/10.5852/ejt.2019.553
d’Udekem, J. (1854) Description d’une nouvelle espèce d’Enchytraeus. Bulletins de l’Académie Royale des Sciences de Belgique, 21, 853–865.
Eisen, G. (1872) Om nagra arktiska Oligochaeter. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 29 (1), 119–124.
Eisen, G. (1878) Redogörelse för Oligochaeter samlade under de Svenska expeditionerna till Arktiska trakter. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 3, 63–79.
Erséus, C., Rota, E., Matamoros, L. & De Wit, P. (2010) Molecular phylogeny of Enchytraeidae (Annelida, Clitellata). Molecular Phylogenetics and Evolution, 57 (2), 849–858. https://doi.org/10.1016/j.ympev.2010.07.005
Felföldi, T., Dózsa-Farkas, K., Nagy, H. & Hong, Y. (2020) Three new enchytraeid species (Enchytraeidae, Annelida) from mountain soils of Korea and ten species new for the country. Zootaxa, 4896 (1), 1–45. https://doi.org/10.11646/zootaxa.4896.1.1
Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3, 294–299.
Friend, H. (1899) New British annelids. The Zoologist, Series 4, 3, 262–265.
Friend, H. (1913) British Enchytraeids. Journal of The Royal Microscopical Society, 1913, 255–271. https://doi.org/10.1111/j.1365-2818.1913.tb01023.x
Graefe, U. (1984) Eine einfache Methode der Extraktion von Enchytraeiden aus Bodenproben. In: Köhler, H. & Beck, L. (Eds.), Protokoll des Workshops zu Methoden der Mesofaunaerfassung und zu PCP-Wirkungen auf Collembolen und andere Mesofauna-Gruppen. s.n., Bremen, pp. 17.
Healy, B. (1979) Three new species of Enchytraeidae (Oligochaeta) from Ireland. Zoological Journal of the Linnean Society, 67, 87–95. https://doi.org/10.1111/j.1096-3642.1979.tb01107.x
Hebert, P., Ratnasingham, S. & de Waard, J. (2003) Barcoding animal life: cytochrome c oxidase subunit 1 divergences among closely related species. Proceedings of The Royal Society of London. Series B: Biological Sciences, 270, S96–S99. https://doi.org/10.1098/rsbl.2003.0025
Hoffmeister, W. (1843) Beitrag zur Kenntnis deutscher Landanneliden. Archiv für Naturgeschichte, 9 (1), 183–198.
Issel, R. (1905) Un enchitreide ad ampolla spermatecale unica. Atti della Società dei naturalisti e matematici di Modena, 7, 77–79.
Jamirzoev, G.S., Bukreev, S.A., Ataev, Z.V., Abdulaev, K.A., Askenderov, A.D., Idrisov, I.A., Ilina, E.V., Mazanaeva, L.F., Mnatsekanov, R.A., Murtazaliev, R.A., Phitikov, A.B., Sergeeva, M.I., Trepet, S.A. & Yarovenko, Yu.A. (2020) Osobo okhranyayemyye prirodnyye territorii Respubliki Dagestan. Trudy gosudarstvennogo prirodnogo zapovednika “Dagestanskiy”, 16, 1–368. [in Russian]
Köppen, W. (1918) Klassifikation der Klimate nach Temperatur, Niederschlag und Jahresablauf. etermanns Geographische Mitteilungen, 64, 193–203.
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 (6), 1547–1549. https://doi.org/10.1093/molbev/msy096
Levinsen, G.M.R. (1883) Systematisk-geografisk Oversigt over de nordiske Annulata, Gephyrea, Chaetognathi og Balanoglossi. Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjöbenhavn, 45 (1883), 92–350. https://doi.org/10.5962/bhl.title.16117
Martinsson, S. & Erséus, C. (2015) Cryptic diversity in the well-studied terrestrial worm Cognettia sphagnetorum (Clitellata: Enchytraeidae). Pedobiologia, 57, 27–35. https://doi.org/10.1016/j.pedobi.2013.09.006
Martinsson, S., Rota, E. & Erséus, C. (2015) On the identity of Chamaedrilus glandulosus (Michaelsen, 1888) (Clitellata, Enchytraeidae), with the description of a new species. Zookeys, 501, 1–14. https://doi.org/10.3897/zookeys.501.9279
Möller, F. (1971) Systematische Untersuchungen an terricolen Enchytraeiden einiger Grünlandstandorteim Bezirk Potsdam. Mitteilungen aus dem Zoologischen Museum in Berlin, 47 (1), 131–167. https://doi.org/10.1002/mmnz.19710470114
Mordkovich, V. (2014) Steppe ecosystems. Akadem. izd-vo “Geo”, Novosibirsk, 170 pp. [in Russian]
Nielsen, C. & Christensen, B. (1959) The Enchytraeidae: critical revision and taxonomy of European species (Studies on Enchytraeidae VII). Natura Jutlandica, 8–9, 1–160.
Nurminen, M. (1970) Four new enchytraeids (Oligochaeta) from southern Finland. Annales Zoologici Fennici, 7, 378–381.
O’Connor, F.B. (1967) The Enchytraeidae. In: Burges, A. & Raw, F. (Eds.), Soil Biology. Academic Press, London, pp. 213–257. https://doi.org/10.1016/B978-0-12-395699-6.50012-2
Rota, E. (1994) Enchytraeidae (Oligochaeta) of western Anatolia: Taxonomy and faunistics. Bolletino di Zoologia, 61 (3), 241–260. https://doi.org/10.1080/11250009409355892
Rota, E. & Healy, B. (1999). A taxonomic study of some Swedish Enchytraeidae (Oligochaeta), with descriptions of four new species and notes on the genus Fridericia. Journal of Natural History, 33 (1), 29–64. https://doi.org/10.1080/002229399300461
Schlaghamerský, J. (2007) Consequences of the advance in Fridericia taxonomy for our knowledge of Czech and Slovak enchytraeid faunas. In: Tajovský, K., Schlaghamerský, J. & Pižl, V. (Eds.), Contributions to Soil Zoology in Central Europe II. ISB BC AS CR, v.v.i., České Budějovice, pp. 127–130.
Schmelz, R. (2003) Taxonomy of Fridericia (Oligochaeta, Enchytraeidae). Revision of species with morphological and biochemical methods. Abhandlungen des Naturwissenschaftlichen Vereins in Hamburg, 38, 1–415.
Schmelz, R. & Collado, R. (2010) Guide to European terrestrial and freshwater species of Enchytraeidae (Oligochaeta). Soil Organisms, 82, 1–176.
Schmelz, R. & Collado, R. (2012) An updated checklist of currently accepted species of Enchytraeidae (Oligochaeta, Annelida). Landbauforschung – vTI Agriculture and Forestry Research, Special Issue 357, 67–88.
Schmelz, R. & Collado, R. (2013) Enchytraeidae (Oligochaeta, Annelida) from a field site in Portugal, with the description of five new species and a redescription of Enchylea heteroducta Nielsen & Christensen, 1963. Zootaxa, 3647 (2), 307–328. https://doi.org/10.11646/zootaxa.3647.2.4
Schmelz, R. & Collado, R. (2015) Checklist of taxa of Enchytraeidae (Oligochaeta): an update. Soil Organisms, 87, 149–153.
Schwarz, G. (1978) Estimating the dimension of a model. Annals of Statistics, 6 (2), 461–464. https://doi.org/10.1214/aos/1176344136
Sievers, F., Wilm, A., Dineen, D., Gibson, T.J., Karplus, K., Li, W., Lopez, R., McWilliam, H., Remmert, M., Söding, J., Thompson, J.D. & Higgins, D.G. (2011) Fast, scalable generation of high‐quality protein multiple sequence alignments using Clustal Omega. Molecular Systems Biology, 7 (1), 539. https://doi.org/10.1038/msb.2011.75
Vejdovský, F. (1878) Zur Anatomie und Systematik der Enchytraeiden. Sitzungsberichte der Königlich Böhmischen Gesellschaft der Wissenschaften, 1877 (5), 294–304.
Zalesskaja, N.T., Petushkov, V.N. & Rodionova, N.S. (1990) Luminous soil-dwelling enchytraeids (Oligochaeta, Enchytraeidae). Doklady Akademii Nauk SSSR, Biology, 310, 496–498. [in Russian]
Zheng, L., He, J., Lin, Y., Cao, W. & Zhang, W. (2014) 16S rRNA is a better choice than COI for DNA barcoding hydrozoans in the coastal waters of China. Acta Oceanologica Sinica, 33 (4), 55–76. https://doi.org/10.1007/s13131-014-0415-8