The Netherlands Malacological Society has to deplore the loss of one of its most prominent foreign members; Professor Carl Marinus Steenberg died at Copenhagen on February 1, 1946, after a long and very painful illness. Steenberg was born November 24, 1882, at Brønderslev in the north of Jutland. As a boy he showed a remarkable interest in nature; music and mathematics also appealed to him. Already as a schoolboy he resolved to be a zoologist afterwards and he spent his spare time in the field in summer and in the Zoological Museum in winter. He entered the University of Copenhagen as a student of zoology in 1902, passed his examination of magister scientiarum in 1909 and took his doctor’s degree in 1925, for which purpose he had written his well known thesis on the anatomy of Pupillidae.