More than just a name: Colonel Messager and his correspondents
Abraham S. H. BREURE & Barna PÁLL-GERGELY
7-19, Published on 29 January 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, Published on 19 February 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, Published on 07 March 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, Published on 26 March 2019, art. 41 (7) 
Revision of Sinonereis Wu & Sun, 1979 (Annelida: Nereididae)
Víctor M. CONDE-VELA & Xuwen WU
153-161, Published on 16 April 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, Published on 04 June 2019, art. 41 (11) 
Phylogéographie de Neritina stumpffi Boettger, 1890 et Neritina canalis Sowerby, 1825 (Gastropoda, Cycloneritida, Neritidae)
Ahmed ABDOU et al.
237-248, Published on 04 June 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, Published on 09 July 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, Published on 01 August 2019, art. 41 (16) 
Eight new species of xanthic Telenominae Thomson, 1860 (Platygastroidea, Scelionidae) from India
Kamalanathan VEENAKUMARI & Mohanraj PRASHANTH
341-358, Published on 03 September 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, Published on 26 September 2019, art. 41 (21) 
Cytheroid ostracods (Crustacea) from South Korea, with description of a new species
Hyunsu YOO et al.
419-441, Published on 10 October 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, Published on 28 November 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, Published on 17 December 2019, art. 41 (28) 
A review of the genus Coccoglypta Pilsbry, 1895 (Gastropoda: Pulmonata: Camaenidae)
Barna PÁLL-GERGELY et al.
595-608, Published on 20 December 2019, art. 41 (29) 
