Identification of the Kalyptorhynchia (Plathelminthes) in Meixner's 'Turbellaria' 1938 with remarks on the morphology and distribution of the species in the North Sea and the Baltic Sea

Remarks arc given on taxonomy, structure and distribution of 38 species of Kalyptorhynchia, incompletely described (in part nomina nuda) in part I of 'Turbellaria (Strudclwürmer)' in Tierwelt der Nord-und Ostsee (Meixncr 1938). The remarks are based mainly on the existing parts of the basic material for Meixner's study in the collections of the Zoological Institution in Graz, Austria, including incomplete proof sheets of the unpublished part II. Available information on the species published after 1938 has been taken into account.