316 lister : the haunts of the mycetozoa. 
one of the minute sporangia had formed on a moss leaf, to which 
“ giddy height,” as he remarks, the plasmodium must have crept 
quite two millimetres away from its feedmg-grounds. 
Bone. —Mycetozoa are sometimes found on old bones lying 
in pastures, but in such cases their feeding stage has probably 
been passed amongst the vegetable matter of the turf on which 
the bones rested. One undoubted instance is known, however, 
of plasmodium feeding within the substance of bone. In the 
grounds of the British Museum, Cromwell Road, the skull of a 
Sperm-whale had been put to macerate in one of the sand pits 
prepared for that purpose. After, some months, aethalia of 
Fuligo sepiica appeared on the surface of the sand overlying the 
skull. Later, the skull itself was removed and placed on turf 
to undergo further cleaning. From it, fresh aethalia emerged 
throughout the summer of 1913, and again in 1914. I am in¬ 
debted to Mr. S. F. Harmer, head of the Zoological Department 
of the British Museum,for kindly directing my attention to this 
interesting occurrence. In tan-heaps, the classic haunt of Fuligo 
sepiica, or “ Flowers of Tan,” animal matter from hides enriches 
the beds of oak-bark and affords a mixed diet for the plas¬ 
modium ; but, in the case of the whale’s skull, there seems to 
be no doubt that the plasmodium had fed entirely on the fats 
and other animal substances embedded in the bones. 
In concluding these notes, I am well aware how imperfect 
and incomplete the references to the many and varied haunts 
of the Mycetozoa are ; but they may serve, perhaps, as a rough 
scaffolding about which further observations may be built up. 
To those of us who search for Mycetozoa, these haunts have a 
singular fascination, and we would gladly share their charm 
with other naturalists. 
The following lists are intended to serve as a guide indicating 
some of the Mvcetozoa characteristic of the different haunts 
%/ 
described. They do no more than suggest a few of the species 
that may be found, and of these, it must be remembered, many 
are by no means restricted to a single habitat. 
