Meiofauna Marina Biodiversity, morphology and ecology of small benthic organisms Editor-in-Chief Thomas Bartolomaeus (Bielefeld, Germany) Managing Editor Andreas Schmidt-Rhaesa (Bielefeld, Germany) The marine meiofauna, defined as animals of microscopic size living in marine sediments, is one the earth’s richest and most diverse community extending from the shore to the deep sea. The marine meiofauna still contains numerous undescribed species and higher taxa. Special morphological adaptations evolved, especially in meiofauna living in the intertidal zone which is under a strong abiotic regime. Certain higher taxa evolved exclusively in the marine interstitial system. Evolutionary constrains caused elaborated life-cycles, migration patterns, special reproductive behaviours and structural adaptations. The interstitial system is also habitat for larvae and juveniles of certain macrofaunal species. A surprisingly large number of species coexists in the tiny interstices, but still most questions on their interactions and life strategies await their answers. Meiofauna Marina continues the journal Microfauna Marina (Vol. 1-11, 1984-1997). It invites papers on all aspects of permanent or temporary marine meiofauna, especially those dealing with their taxonomy, biogeography, ecology, morphology and ultrastructure. It also extends to brackish water meiofauna. Manuscripts on the evolution of marine meiofauna are also welcome. Publication of larger reviews or special volumes are possible, but need to be requested for. Meiofauna Marina will be published once a year. All contributions undergo a thorough process of peer-review.