The Tunicata collection is part of the SeSAM collections of Senckenberg which combines all collections held at the Senckenberg Natutal History Museum of Frankfurt. It contains Tunicata from all over the world and includes the type material of 40 primary types; especially important is the reference material related to the works of Gottschaldt (1898), Hartmeyer (1903, 1911, 1912), and Sluiter (1913 & 1932).