1. Musculature development in planuloids of Cassiopeia xamachana (Cnidaria: Scyphozoa)

   • Valeriia Khabibulina
   • Viktor Starunov

   Original Paper 24 April 2019 Pages: 297 - 306

   

2. Antennal sensory structures in water bugs of Nepoidea (Insecta: Hemiptera: Nepomorpha), their morphology and function

   • Agnieszka Nowińska
   • Jolanta Brożek

   Original Paper Open access 11 May 2019 Pages: 307 - 319

   

3. Morphological and histological study of the forewing of Aleyrodes proletella (Linnaeus 1758) (Sternorrhyncha, Hemiptera) with a comparative analysis of forewings among Sternorrhyncha infraorders

   • Barbara Franielczyk-Pietyra
   • Łukasz Depa
   • Piotr Wegierek

   Original Paper Open access 29 May 2019 Pages: 321 - 333

   

4. Morphological discontinuous variation and disparity in Lutzomyia (Tricholateralis) cruciata Coquillett, 1907 are not related to contrasting environmental factors in two biogeographical provinces

   • Ana Celia Montes de Oca-Aguilar
   • Efraín De Luna
   • Sergio Ibáñez-Bernal

   Original Paper 25 May 2019 Pages: 335 - 348

   

5. Immature stages of beetles representing the ‘Opatrinoid’ clade (Coleoptera: Tenebrionidae): an overview of current knowledge of the larval morphology and some resulting taxonomic notes on Blapstinina

   • Marcin Jan Kamiński
   • Ryan Lumen
   • Dariusz Iwan

   Original Paper Open access 16 April 2019 Pages: 349 - 370

   

6. Retinal differentiation in syngnathids: comparison in the developmental rate and acquisition of retinal structures in altricial and precocial fish species

   • Guadalupe Álvarez-Hernán
   • José Pedro Andrade
   • Javier Francisco-Morcillo

   Original Paper 11 May 2019 Pages: 371 - 385

   

7. Unveiling the cryptic morphology and ontogeny of the Colombian Caiman crocodilus: a geometric morphometric approach

   • Mónica Angulo-Bedoya
   • Santiago Correa
   • Hugo A. Benítez

   Original Paper 09 May 2019 Pages: 387 - 397

   

8. Regeneration in the Podarcis bocagei model organism: a comprehensive immune-/histochemical analysis of the tail

   • Carla Luís
   • Ilda Rodrigues
   • Raquel Soares

   Original Paper 13 June 2019 Pages: 399 - 407

   

9. Bony labyrinth shape differs distinctively between modern wolves and dogs

   • L. A. Janssens
   • P. Gunz
   • A. Stoessel

   Original Paper 06 May 2019 Pages: 409 - 417

   

10. A farewell to arms: using X-ray synchrotron imaging to investigate autotomy in brittle stars

    • E. G. Clark
    • K. Fezzaa
    • D. E. G. Briggs

    Methods Papers 05 June 2019 Pages: 419 - 424