1. Introduction
The collection of Vertebrate remains from the pleistocene Te-
gelen Clay ranks among the most valuable additions to the palaeontological
collection of Teyler’s Museum acquired during the
curatorship of Professor Eug. Du b o i s . These materials were
uncatalogued, and only partly labelled and numbered, when I
took over the charge of the collection from Dr. C. B e e t s in the
spring of 1946. B e e t s had discovered that more fossils from
Tegelen were present in our Museum than was known to those
interested in this fauna. He referred some important fossil bones to
Dr D. A. H o o ij e r, who has dealt with them in a short paper
(H o o ij e r, 1947), and he sent two incomplete skulls of Trogon-
therium boisvilletti for examination to Dr. A. S c h r e u d e r (cf.
S c h r e u d e r , 1949, p. 122, and f. 9; 1951, p. 406, pi. 1, 2). It
appeared moreover that some wooden boxes and a large basket with
unsorted fossil bones from Tegelen were stored in a depository of
the Museum. They had presumably been sent to D u b o i s about
1913, and had never been looked at. The late Dr J. J. A. B e r n-
sen, D u b o i s ’ pupil who wrote a thesis on the fossil remains of
“Rhinoceros” from the Tegelen Clay, would have been extremely
glad to have examined these fossils, as many bones of Dicerorhinus
kirchbergensis, a species of which he had very incomplete material,
were among them!