INTRODUCTION In continuation of Part I1 of the Demosphongiae of Santa Marta, we list the species of the orders above, following the classification of Bergquist (1980). It is the subject of this paper to construct a checklist of the collected sponges and to present the type specification of the new species. Up to now there does not exist any description of sponges of the Colombian coast, where they dwell in large populations. There is no doubt that our collection from January until March 1977 reflects only a part of the diversity in this population, but we hope to stimulate further investigations. The material was collected in more than hundred SCUBA-activities and hand samplings. It was treated by the same methods as given in Part I. The collecting areas of the following described species are more extensive. We are deeply grateful to the Deutscher Akademischer Austauschdienst (DAAD) for enabling these investigations and to the following persons for their collecting activities: I. Caycedo, Dr. R. Köster, Dipl. Biol. H. Sanchez, Dr. B. Werding, Dr. J. Vêlez.
