Morphological and molecular variability of Peridinium volzii Lemmerm. (Peridiniaceae, Dinophyceae) and its relevance for infraspecific taxonomy Victoria J. C. HolzerJuliane KretschmannMarc Gottschling Original Article Open access 09 October 2021 Pages: 1 - 15
Is scale’s structure still a good character to delimitate species of Amoebozoa? case of the genus Korotnevella (Amoebozoa, Dactylopodida) Ilya A. UdalovEckhard Völcker Original Article 28 September 2021 Pages: 17 - 33
The structure of the muscular and nervous systems of the orthonectid Rhopalura litoralis (Orthonectida) or what parasitism can do to an annelid George S. SlyusarevNatalya I. BondarenkoViktor V. Starunov Original Article 24 September 2021 Pages: 35 - 45
The biogeographical history of giant earthworms of the Metaphire formosae species group (Clitellata: Megascolecidae) in Taiwan and the Ryukyu Archipelago, with the description of a new species from Yonagunijima, Southern Ryukyus Huei-Ping ShenChih-Han ChangHidetoshi Ota Original Article 16 October 2021 Pages: 47 - 60
Molecular investigation and description of Iberozospeum n. gen., including the description of one new species (Eupulmonata, Ellobioidea, Carychiidae) Jeannette KneubühlerAdrienne JochumEike Neubert Original Article Open access 05 November 2021 Pages: 61 - 92
Revealing morphological characteristics of Goniodorididae genera (Mollusca: Nudibranchia) Sofia Paz-SedanoGuillermo Díaz-AgrasMarta Pola Original Article Open access 12 October 2021 Pages: 93 - 116
Analysis of major sperm proteins in two nematode species from two classes, Enoplus brevis (Enoplea, Enoplida) and Panagrellus redivivus (Chromadorea, Rhabditida), reveals similar localization, but less homology of protein sequences than expected for Nematoda phylum Julia K. ZografYulia A. TrebukhovaKonstantin V. Yakovlev Original Article 20 September 2021 Pages: 117 - 130
Mitochondrial genome divergence supports an ancient origin of circatidal behaviour in the Anurida maritima (Collembola: Neanuridae) species group M. J. T. N. TimmermansJ. I. ArbeaS. Kett Original Article 22 September 2021 Pages: 131 - 140
Cladistic analysis and taxonomic revision of the genus Poecilocricus Schubart, 1962 (Diplopoda, Spirobolida, Rhinocricidae) Patrícia Elesbão Silva RodriguesLuiz Alexandre CamposEverton Nei Lopes Rodrigues Original Article 07 October 2021 Pages: 141 - 160
Morphological and molecular inference of immature stages of Larinus hedenborgi (Col: Curculionidae), a trehala-constructing weevil Jiří SkuhrovecRafał GosikAzar Tahghighi Original Article 09 October 2021 Pages: 161 - 176
Comparative analysis of morphospace of Neotropical Sericini (Coleoptera: Scarabaeidae): disparity in the light of species diversity and activity patterns Thaynara L. PachecoMarcela L. MonnéDirk Ahrens Original Article Open access 30 October 2021 Pages: 177 - 188
Morphological and genetic data suggest a complex pattern of inter-island colonisation and differentiation for mining bees (Hymenoptera: Anthophila: Andrena) on the Macaronesian Islands Anselm KratochwilRobert J. PaxtonMartin Husemann Original Article Open access 02 November 2021 Pages: 189 - 204
DNA barcoding in Dorcadionini (Coleoptera, Cerambycidae) uncovers mitochondrial-morphological discordance and the hybridogenic origin of several subspecies Maria-Magdalena DascăluFlorina-Georgiana CabaLucian Fusu Original Article 23 November 2021 Pages: 205 - 229
Take a deep breath… The evolution of the respiratory system of symphytognathoid spiders (Araneae, Araneoidea) Lara LopardoPeter MichalikGustavo Hormiga Original Article Open access 10 November 2021 Pages: 231 - 263
Gut-content analysis in four species, combined with comparative analysis of trophic traits, suggests an araneophagous habit for the entire family Palpimanidae (Araneae) Stano PekárLenka Petráková DušátkováCharles R. Haddad Original Article 29 September 2021 Pages: 265 - 274
Evaluating the correlation between area, environmental heterogeneity, and species richness using terrestrial isopods (Oniscidea) from the Pontine Islands (West Mediterranean) Gabriele GentileRoberto ArganoStefano Taiti Original Article Open access 08 October 2021 Pages: 275 - 284