Novel data support validity of Phoxinus chrysoprasius (Pallas, 1814) (Actinopterygii, Leuciscidae)
Nina G. BOGUTSKAYA et al.
1-20, Published on 06 March 2023, art. 861 (1)
New species of Pavlovophyceae (Haptophyta) and revision of the genera Exanthemachrysis, Rebecca and Pavlova
Benoît VÉRON et al.
21-47, Published on 08 March 2023, art. 861 (21)
Three new species of pseudoscorpions (Arachnida: Pseudoscorpiones: Pseudotyrannochthoniidae) from caves in Yunnan and Guizhou Provinces, China
First record of Pudeoniscidae Lemos de Castro, 1973 (Oniscidea) from Peru, with the description of a new genus and species
Ana Teresa OCAMPO-MACEDA et al.
65–77, Published on 13 March 2023, art. 861 (65) 
Genus Schismatothele Karsch, 1879 (Araneae, Theraphosidae): taxonomic notes and seven new species description
Wolf MOELLER et al.
78-112, Published on 14 March 2023, art. 861 (78) 
On the genus Ammonius Thorell, 1899 (Mygalomorphae, Barychelidae): description of the female of A. pupulus, a new species and new distribution records
Hector M. O. GONZALEZ-FILHO et al.
113-131, Published on 15 March 2023, art. 861 (113) 
Parasitic bopyrid isopods of hermit crabs (Anomura, Paguridae) from the Atlantic coast of Mexico, with notes on their reproduction and distribution
Jesús ROMERO-RODRIGUEZ & Fernando ÁLVAREZ
132-167, Published on 16 March 2023, art. 861 (132) 
Clitopilus cretoalbus sp. nov. (Entolomataceae, Agaricales), a new species from Pakistan
Aiman IZHAR et al.
168-184, Published on 17 March 2023, art. 861 (168)
Two new species of Russula subgenus Heterophyllidia (Russulaceae, Russulales) from Yanshan Mountains, North China
Hao ZHOU et al.
185-202, Published on 20 March 2023, art. 861 (185)
