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Comparative molecular and morphological species delineation of Halammohydra Remane, 1927 (Hydrozoa)—with the description of four new species Lenke TödterKatrine WorsaaeAndreas Schmidt-Rhaesa ORIGINAL ARTICLE Open access 01 March 2023 Pages: 455 - 476
Revealing the diversity of the green Eulalia (Annelida, Phyllodocidae) species complex along the European coast, with description of three new species Marcos A. L. TeixeiraPedro E. VieiraArne Nygren Original Article 13 January 2023 Pages: 477 - 503
Development and structure of the anterior nervous system and sense organs in the holopelagic annelid Tomopteris spp. (Phyllodocida, Errantia) Günter PurschkeConrad Helm ORIGINAL ARTICLE Open access 07 February 2023 Pages: 505 - 527
Nereididae (Annelida) phylogeny based on molecular data Paulo R. AlvesKenneth M. HalanychCinthya S. G. Santos ORIGINAL ARTICLE 12 April 2023 Pages: 529 - 541
First record of North Italian roach, Leucos aula (Bonaparte, 1841) on the Pag Island, Croatia—relict of the last glacial maximum? Matej VucićFeitoumatt Lematt HamaNina Bogutskaya ORIGINAL ARTICLE 16 February 2023 Pages: 543 - 553
Taxonomy of the rear-edge populations: the case of genus Anterastes (Orthoptera, Tettigoniidae) Onur UluarÖzgül YahyaoğluBattal Çıplak ORIGINAL ARTICLE 15 March 2023 Pages: 555 - 575
Intraspecific variations in species of Ophiuroidea (Echinodermata) from the Tropical Southwest Atlantic, Northeast Brazil Jailma Ferreira da SilvaJéssica PrataMartin Lindsey Christoffersen Original Article 13 January 2023 Pages: 577 - 602
The biology of an isolated Mashona mole-rat population from southern Malawi, with implications for the diversity and biogeography of the genus Fukomys R. ŠumberaM. UhrováO. Mikula ORIGINAL ARTICLE Open access 28 March 2023 Pages: 603 - 620
ELAV Intron 8: a single-copy sequence marker for shallow to deep phylogeny in Eupulmonata Hasprunar & Huber, 1990 and Hygrophila Férussac, 1822 (Gastropoda: Mollusca) Jeffrey C. NekolaMarkéta NovákováCoen M. Adema Methods Paper 04 November 2022 Pages: 621 - 629