1899] MARINE INVERTEBRATES OF SINGAPORE 133 
oa 
By most writers on tropical zoology much stress has been laid on 
these modifications, and we have all repeatedly been told of the 
brilliant coloration of tropical marine animals, of the way in which 
hermit-crabs wander far inland, of fresh-water crabs, etc., but to my 
mind the resemblances are much more striking than the differences, 
and all that I have attempted in the present article is to give some 
idea, necessarily very imperfect, of the general impression produced 
when collecting for the first time in these waters, and if it is thought 
that more detailed facts are required before any generalisations are 
possible, I can only hope that at some future time I may be able to 
contribute my mite to the common store. 
RAFFLES MusEum, 
SINGAPORE, 
