Kinetid structure in larval and adult stages of the demosponges Haliclona aquaeductus (Haplosclerida) and Halichondria panicea (Suberitida) Agniya M. SokolovaIgor R. PozdnyakovSergey A. Karpov Original Paper 18 February 2019 Pages: 171 - 184
Spermatological characteristics of Siphoderina aloysiae (Digenea, Cryptogonimidae), an intestinal parasite of Sciaena umbra (Teleostei, Sciaenidae) Hichem KacemJordi Miquel Original Paper 14 January 2019 Pages: 185 - 192
Comparative muscular morphology in Archinemertea (Nemertea: Palaeonemertea) Alexei V. ChernyshevHiroshi Kajihara Original Paper 20 March 2019 Pages: 193 - 207
Formation and structure of paleae and chaetal arrangement in chrysopetalidae (Annelida) Ekin TilicSchabnam SermelwallThomas Bartolomaeus Original Paper 31 January 2019 Pages: 209 - 220
First ultrastructural evidence of placental nutrition in a ctenostome bryozoan: example of Amathia verticillata Thomas SchwahaMartin MoosbruggerAndrew N. Ostrovsky Original Paper Open access 19 March 2019 Pages: 221 - 232
Unusual penis morphology among cosmetid harvestmen (Arachnida: Opiliones) from Mesoamerica Daniel N. ProudVictor R. Townsend Jr. Original Paper 16 January 2019 Pages: 233 - 247
Morphology of putative chemosensory setae in males of the spider genus Ariadna Audouin (Araneae, Synspermiata, Segestriidae) André Marsola GirotiAntonio Domingos Brescovit Original Paper 26 March 2019 Pages: 249 - 263
An integrated analysis of hyperspectral and morphological data of cicada ovipositors revealed unexplored links to specific oviposition hosts Zehai HouHaiying ZhongCong Wei Original Paper 30 January 2019 Pages: 265 - 276
Interspecific size- and sex-related variation in the cranium of European brown frogs (Genus Rana) Jelena Krstičić RačkovićNataša Tomašević KolarovTanja Vukov Original Paper 25 March 2019 Pages: 277 - 286
Are baculum size and allometry a response to post-copulatory sexual selection in promiscuous males of the house mouse? Alexander CsanádySilva DurankováErika Labancová Original Paper 13 February 2019 Pages: 287 - 296