Аннотация:This Atlas contains a summary of the main invertebrate animals available for studying their embryology and development processes at the Pertzov White Sea Biological Station (WSBS) MSU, Russia. The illustrations used in the Atlas are collected thanks to the efforts of a large team of people working at the WSBS MSU. The release of the Atlas is timed to the 3rd Summer Course on Embryology of Marine Invertebrates, which took place June 9-30, 2019 at the WSBS MSU. Detailed information can be found on the website of the biostation: http://en.wsbs-msu.ru