Tropical freshwater sponges develop from gemmules faster than their temperate-region counterparts Ludimila CalheiraEmilio LannaUlisses Pinheiro Original Paper 16 August 2019 Pages: 425 - 436
The cnidome of Olindias muelleri (Cnidaria: Hydrozoa: Limnomedusae) from South Adriatic Sea Camilla RovetaDaniela PicaStefania Puce Original Paper 24 August 2019 Pages: 437 - 442
Ultrastructure of the epidermal gland system of Tetranchyroderma suecicum Boaden, 1960 (Gastrotricha: Macrodasyida) indicates a defensive function of its exudate Jannik SchnierWilko H. AhlrichsAlexander Kieneke Original Paper 03 September 2019 Pages: 443 - 462
Histomorphological investigation of the mature externa of Heterosaccus dollfusi (Crustacea, Rhizocephala) Mohamed F. Nour EldeenMona M. El GamalMohamed H. Mona Original Paper 14 June 2019 Pages: 463 - 473
Sound production mechanism in the Brazilian spiny lobsters (Family Palinuridae) Santiago HamiltonJosé Filipe SilvaSilvio Peixoto Original Paper 28 August 2019 Pages: 475 - 482
Morphological study of the labial sensilla in Nabidae (Hemiptera: Heteroptera: Cimicomorpha) Artur TaszakowskiAgnieszka NowińskaJolanta Brożek Original Paper Open access 12 July 2019 Pages: 483 - 492
On organ development in larvae of Diplosoma migrans (Menker & Ax, 1976) (Tunicata, Ascidiacea, Didemnidae) Wolfgang GroeplerThomas Stach Original Paper 16 July 2019 Pages: 493 - 509
The orobranchial structures in four neotropical silversides (Teleostei: Atherinopsidae) related with feeding habits Carlos A. Martínez-PalaciosMaría C. Aguilar-ValdezLindsay G. Ross Original Paper 09 August 2019 Pages: 511 - 523
Histochemical characterization and connective fiber distribution of the cardiac outflow tract of pirarucu, Arapaima gigas (Schinz, 1822) (Osteoglossiformes, Arapaimidae) Mario Vitor Buzete GardinalThalles Fernando Rocha RuizCarlos Alberto Vicentini Original Paper 16 August 2019 Pages: 525 - 534
Bone microstructure in finite element modeling: the functional role of trabeculae in the femoral head of Sciurus vulgaris Maja MielkeJohn A. Nyakatura Original Paper 22 July 2019 Pages: 535 - 547