CCELENTEBATA. 



19 



pressa and G. ciliata to Sycandra, also G. ensata (S. glabra) and 

 G. tessellata (S. elegans=Dunst&rvilla) ; Leucosolenia botryoides to 

 Ascaltis ; L. contorta to Ascandra L. lacunosa to Ascortis ; L. 

 coriacea to Ascetta ; Lewonia nivea, L. fistulosa, and Leucogypsia 

 Gossei to Leucandra ; and Leuconia pumila to Leucaltis. 



Following Hackel, and referring the Silicispongiae, Cerato- 

 spongise, and Hyalospongiae to the Fibrospongise, we have three 

 orders : 



Gelatinous, no skeleton MYXOSPONGLE. 



With a skeleton. 



