PROUT—BRYOZOA, 2D SERIES. 267 
eit 4 here aia generic shaceham of orn ‘um from 
waren escription, with the view presenting 
some further details in the organization of this Bryozoa, which 
hy sar rene: not so manifest in the specimens upon which 
us. 
Sees aap surface plates are not invariably separa- 
ted by a thin malls, but even on the leaf-like are of 
the « here this character 
ral pinta 
ved, we find eek sometimes for np the le spaces so 
pletely w: together, of solidified, that the mesial or a. 
visional plate cann egg a ecognized. Where the dividing 
plate is more fully see ig a cancellous structure on ane 
side, from the outer or of which the large 
terminating on the free surface take their fe. This dvi vis- 
the appearance of three lamelle, interrupted and dislocated 
— excessive cell development. : . : 
stent ontec tables Sotkn Seisodkat anew. or four Poni 
case ae econ st 
as to leave inter- 
was “< 
