5.9, 53.2: 10 Treatments

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Eucyclops azorensis     Hołyńska, Maria, Sługocki, Łukasz, Ghaouaci, Souad & Amarouayache, Mounia, 2021, Taxonomic status of Macaronesian Eucyclops agiloides azorensis (Arthropoda: Crustacea: Copepoda) revisited - morphology suggests a Palearctic origin, European Journal of Taxonomy 750, pp. 1-28 : 4-14 4-14
Neolimnophila alaskana     Kolcsar, Levente-Peter, Oosterbroek, Pjotr, Gavryushin, Dmitry I., Olsen, Kjell Magne, Paramonov, Nikolai M., Pilipenko, Valentin E., Stary, Jaroslav, Polevoi, Alexei, Lantsov, Vladimir I., Eiroa, Eulalia, Andersson, Michael, Salmela, Jukka, Quindroit, Clovis, d'Oliveira, Micha C., Hancock, E. Geoffrey, Mederos, Jorge, Boardman, Pete, Viitanen, Esko & Watanabe, Kozo, 2021, Contribution to the knowledge of Limoniidae (Diptera: Tipuloidea): first records of 244 species from various European countries, Biodiversity Data Journal 9, pp. 67085-67085 : 67085 67085
Chthonius halberti     Gardini, Giulio, 2021, The Italian species of the Chthonius ischnocheles group (Arachnida, Pseudoscorpiones, Chthoniidae), with reference to neighbouring countries, Zootaxa 4987 (1), pp. 1-131 : 57-60 57-60
Chthonius halberti     Gardini, Giulio, 2021, The Italian species of the Chthonius ischnocheles group (Arachnida, Pseudoscorpiones, Chthoniidae), with reference to neighbouring countries, Zootaxa 4987 (1), pp. 1-131 : 57-60 57-60
Cosmarium neocrenatum   spec. nov.  Van Westen, Marien C. & Coesel, Peter F. M., 2021, Taxonomic notes on desmids from the Netherlands IV, with a description of another five new species, Phytotaxa 522 (3), pp. 240-248 : 240-241 240-241
Arrenurus europaeus   sp. nov.  Smit, Harry, 2022, A new species of the genus Arrenurus Dugès, 1834 (Acari: Hydrachnidia: Arrenuridae) from Europe, Zootaxa 5150 (1), pp. 148-150 : 148 148
Myriophyllum rubricaule   sp. nov.  Van Valkenburg, Johan L. C. H., Boer, Edu & Raaymakers, Tom M., 2022, Myriophyllum rubricaule sp. nov., a M. aquaticum look-alike only known in cultivation, European Journal of Taxonomy 828, pp. 1-15 : 4-8 4-8
Cosmarium regnesiforme   spec. nov.  Van Westen, Marien C. & Coesel, Peter F. M., 2021, Taxonomic notes on desmids from the Netherlands IV, with a description of another five new species, Phytotaxa 522 (3), pp. 240-248 : 246-247 246-247
Cosmarium sphagnicoliforme   spec. nov.  Van Westen, Marien C. & Coesel, Peter F. M., 2021, Taxonomic notes on desmids from the Netherlands IV, with a description of another five new species, Phytotaxa 522 (3), pp. 240-248 : 247 247
Hoplophthiracarus pavidus     van der Hammen, L., 1963, The Oribatid Family Phthiracaridae I. Introduction and Redescription of Hoplophthiracarus pavidus (Berlese), Acarologia 5, pp. 306-317 : 307-317 307-317