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use of for doing some dredgings in the neighbourhood of the har- 
bour, mainly near the little Island of Samalona, the director of 
the harbour works, ingeneer H. V. van der Voort, most kindly 
placing at our disposal a small steam launch, excellently suited for 
dredging work in more shallow water. I beg here to express my 
sincerest thanks to this gentleman for this courtesy, as also to Mr. 
P. Rasmussen of the Macasser Produce Co., Ltd., for all kindness 
shown to the Expedition on our way out and back. 
These few days’ work was, of course, not sufficient for giving 
more than an impression of the biological conditions of the bottom 
in this sea, the impression being not very favourable. The bottom 
nearly everywhere consisted of a very soft mud, in which only a 
comparatively scanty fauna was found. Only on the edge towards 
the riff on Samalona and on the small bank Taka Bako a more 
varied fauna was found, some fine Salmacis virgulata being the most 
noteworthy find. 
The sandy shore of Samalona proved a locality of considerable 
biological interest. Numbers of Amphipods, apparently very closely 
related to the Talitrus and Orchestia's of our own sandy shores, 
were found here at the upper limit reached by the waves, living 
in much the same way as these latter, the sand being in places 
completely covered with the small heaps of loose sand, thrown up 
by the Amphipods when burying themselves in the sand. The-sandy 
beach otherwise was the home of great numbers of sea-cockroaches 
(Hippa), so swiftly moving and again burying themselves, when 
thrown out of the sand, that they were hard enough to see, being 
also exactly of the colour of the sand; further the white mussel Car- 
dium {donaciforme ?), so very cornmon in the sand on these shores, 
was found here (but not Donux), and also a fairly large ChirodotCLy 
rather unusually resistent, so that one could haul it out of the sand 
without tearing it to pieces. The shore here being at times evidently 
exposed to a rather heavy surf (the surrounding coral reef is too 
small for giving much protection), this quality of the ChirodoiUy 
living in the loose sand, is in good accordance with the character 
of its habitat. 
