Relicthemisia, a new subgenus of the oil-collecting bee genus Centris Fabricius, 1804 with notes on distribution and host plants of C. xanthomelaena Moure & Castro, 2001 (Hymenoptera: Apidae)
Felipe VIVALLO & Fernando César Vieira ZANELLA
1-15, Publié le 14 juillet 2021, art. 760 (1)
Two new species of cheilostomate Bryozoa from Iberian waters
Oscar REVERTER-GIL & Javier SOUTO
16-31, Publié le 15 juillet 2021, art. 760 (16) 
Proposal of two new genera of the family Zosimeidae Seifried (Copepoda: Harpacticoida): Heterozosime gen. nov. and Acritozosime gen. nov.
Six new species of Anthuridae (Peracarida: Isopoda) from the southern Mexican Pacific
Ubaldo JARQUÍN-MARTÍNEZ & María del Socorro GARCÍA-MADRIGAL
61-100, Publié le 21 juillet 2021, art. 760 (61) 
Redescriptions of Neanthes Kinberg, 1865 (Annelida: Errantia: Nereididae) species from worldwide regions
Tulio F. VILLALOBOS-GUERRERO et al.
101-135, Publié le 22 juillet 2021, art. 760 (101) 
A new riparian Andean Potamites (Reptilia, Squamata, Gymnophtalmidae) from El Sira Mountains, central Peru, with comments on P. ecpleopus Cope 1875, and on the taxonomy and biogeography of Potamites
Germán CHÁVEZ et al.
136-159, Publié le 23 juillet 2021, art. 760 (136) 
Neanthes goodayi sp. nov. (Annelida, Nereididae), a remarkable new annelid species living inside deep-sea polymetallic nodules
Regan DRENNAN et al.
160-185, Publié le 27 juillet 2021, art. 760 (160) 
