More than just a name: Colonel Messager and his correspondents
Abraham S. H. BREURE & Barna PÁLL-GERGELY
7-19, Publié le 29 janvier 2019, art. 41 (2)
An inventory of the spider species of Barcelonnette (France), with taxonomic notes on Piniphantes agnellus n. comb. (Araneae, Linyphiidae)
Filippo MILANO et al.
29-58, Publié le 19 février 2019, art. 41 (4) 
Revisiting Calohypsibiidae and Microhypsibiidae: Fractonotus Pilato, 1998 and its phylogenetic position within Isohypsibiidae (Eutardigrada: Parachela)
Piotr GĄSIOREK et al.
71-89, Publié le 07 mars 2019, art. 41 (6) 
Annotated type-catalogue of Brachyura (Crustacea, Decapoda) of the Muséum national d’Histoire naturelle, Paris. Part II. Gecarcinidae and Grapsidae (Thoracotremata, Grapsoidea), with an Appendix of pre-1900 collectors
Ngan Kee NG et al.
91-130, Publié le 26 mars 2019, art. 41 (7) 
Revision of Sinonereis Wu & Sun, 1979 (Annelida: Nereididae)
Víctor M. CONDE-VELA & Xuwen WU
153-161, Publié le 16 avril 2019, art. 41 (9) 
Catalogue des types de la collection de phasmes du Muséum national d’Histoire naturelle de Paris (Insecta, Phasmatodea)
Emmanuel DELFOSSE et al.
181-235, Publié le 04 juin 2019, art. 41 (11) 
Phylogéographie de Neritina stumpffi Boettger, 1890 et Neritina canalis Sowerby, 1825 (Gastropoda, Cycloneritida, Neritidae)
Ahmed ABDOU et al.
237-248, Publié le 04 juin 2019, art. 41 (12) 
Mauled by a rhinoceros: the final years of Alfred Duvaucel (1793-1824) in India
Annotated checklist of the Hemiptera Heteroptera of the Site of Community Importance and Special Area of Conservation “Alpi Marittime” (NW Italy)
Margherita NORBIATO et al.
269-312, Publié le 09 juillet 2019, art. 41 (15) 
Beyond shells: first detailed morphological description of the mangrove-associated gastropod Haminoea cf. fusca (A. Adams, 1850) (Cephalaspidea, Haminoeidae), with a COI phylogenetic analysis
Sadar ASLAM et al.
313-326, Publié le 01 août 2019, art. 41 (16) 
Eight new species of xanthic Telenominae Thomson, 1860 (Platygastroidea, Scelionidae) from India
Kamalanathan VEENAKUMARI & Mohanraj PRASHANTH
341-358, Publié le 03 septembre 2019, art. 41 (18) 
Révision du genre Danuriella Westwood, 1889 (Mantodea)
Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
Jean-Georges HARMELIN et al.
385-418, Publié le 26 septembre 2019, art. 41 (21) 
Cytheroid ostracods (Crustacea) from South Korea, with description of a new species
Hyunsu YOO et al.
419-441, Publié le 10 octobre 2019, art. 41 (22) 
Redescription of two overlooked species of the Perinereis nuntia complex and morphological delimitation of P. nuntia (Savigny in Lamarck, 1818) from the Red Sea (Annelida, Nereididae)
The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca
José Rafael ORTEGA & Serge GOFAS
513-551, Publié le 28 novembre 2019, art. 41 (26) 
Two new species of the similis-subgroup of Triconia Böttger-Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
Kyuhee CHO et al.
567-593, Publié le 17 décembre 2019, art. 41 (28) 
A review of the genus Coccoglypta Pilsbry, 1895 (Gastropoda: Pulmonata: Camaenidae)
Barna PÁLL-GERGELY et al.
595-608, Publié le 20 décembre 2019, art. 41 (29) 
