Shedding light on the origin of Acanthocystidae: Ricksol blepharistes gen. n., sp. n. (Ricksolidae fam. n., Panacanthocystida, Centroplasthelida), with notes on the evolution of the genera Acanthocystis, Ozanamia gen. n. (Ozanamiidae fam. n.), and “Heterophrys-like organisms” Yegor Shɨshkin-SkarðDaria DrachkoVasily V. Zlatogursky Original Article 26 December 2022 Pages: 263 - 274
Species delimitation in Ceratozamia (Zamiaceae) from Southwestern Mexico, in light of reproductive and climatic diversification Lilí Martínez-DomínguezFernando Nicolalde-MorejónDennis Wm. Stevenson Original Article 31 December 2022 Pages: 275 - 293
Guess who? Taxonomic problems in the genus Eiseniella revisited by integrated approach Irene de SosaDaniel F. MarchánDarío J. Díaz Cosín Original Article Open access 06 December 2022 Pages: 295 - 308
Integrative taxonomy helps to revise systematics and questions the purported cosmopolitan nature of the type species within the genus Diaforobiotus (Eutardigrada: Richtersiusidae) Daniel Stec Original Article Open access 11 November 2022 Pages: 309 - 328
The Macrobiotus persimilis-polonicus complex (Eutardigrada, Macrobiotidae), another example of problematic species identification, with the description of four new species Roberto BertolaniMichele CesariGiovanni Pilato Original Article 24 December 2022 Pages: 329 - 368
An unknown segment number in centipedes: a new species of Scolopocryptops (Chilopoda: Scolopendromorpha) from Trinidad with 25 leg-bearing segments Amazonas Chagas-JrGregory D. EdgecombeAlessandro Minelli Original Article 15 November 2022 Pages: 369 - 380
The phylogeography of some soil-feeding termites shaped by the Andes Damien GergonneRomain FougeyrollasVirginie Roy Original Article 29 November 2022 Pages: 381 - 394
Historical biogeography highlights the role of Miocene landscape changes on the diversification of a clade of Amazonian tree frogs Diego A. OrtizConrad J. HoskinAntoine Fouquet Original Article Open access 14 November 2022 Pages: 395 - 414
Phylogenetic relationships and divergence times of the poorly known genus Spalerosophis (Serpentes: Colubridae) Reza YadollahvandmiandoabRicardo KoroivaDaniel Oliveira Mesquita Original Article 21 November 2022 Pages: 415 - 423