371 
LiMNOCODIUM (CRASPEDACUSTEs) SOWEllBll. 
The movements of the embryo in this phase are active enough. 
A frequent pulsation of the subumbrellar musculature is seen, 
which alters but little the surface outline of the spherical embryo. 
The spherical form is, however, slowly altered, and occasionally the 
embryos become much elongated parallel to the oro-apical axis. 
I defer any further description of the development of Limno- 
codium until I can submit the more complete drawings of the 
stages which I have already recorded and of others for which I 
am now in search. 
Intra-cellular digestion in Lim7iocodium,—T\\Q exceedingly 
important fact that some of the Coelentera, and lower kinds of 
worms, digest their solid food by the inception of the solid food- 
particles into the substance of endodermal cells, each endodermal 
cell behaving as an Amoeba, has now been fairly established by 
the observations of Allman on Myriothela, of Metschnikoff on 
Turbellarians, and of T. J. Parker on the common Hydra. 
Limnocodium exhibits this mode of digestion in the most 
striking and obvious manner. I have prepared drawings of the 
endodermal cells of the stomach, showing their amoeboid character, 
and showing further the presence of such food-bodies as Pro- 
tococci, Diatoms, and Euglenae, in various stages of digestion, 
within the protoplasm of single cells, and of aggregated groups 
of such cells. These were observed in and drawn from living 
specimens of Limnocodium with a magnifying power of 800 
diameters. 
