290 NATtJRAL HISTORY OP 



(C. W. P.), Scarborough {Bean), Shetland {A. M. K), 

 North Sea (A. 8. P.). 



This zoophyte grows to a height of about an inch, 

 and rises from a cup-like stalk by which it is affixed 

 to shells and stones. It attains a breadth of one to 

 two inches^ and expands in a foliaceous manner. It is 

 reticulated all over. " A person might think it was a 

 piece of Honiton lace which had lost its pliancy by 

 being frozen.^' — Landshorough. The cells occur on 

 the upper or inner side, and are rounded. The orifice 

 is extended into a peristome having a short projection 

 bearing an avicularium. The reticulations or fenestrce 

 are oval. The back or outer side of the zoarium is 

 " traversed by raised white lines." Above ea.ch fenestra 

 is a small avicularium. 



2. R. CoucHii, HincJcs. 



(The R. Beaniana of HincJis, A. N. H., ser. 3, ix., 

 308.) 



Cornwall {B. Q. (7.), Devon {T.H.), Grnernsej {A.M.N.) . 



This is a much smaller species than the preceding, 

 and is a southern form. It does not much exceed | in. 

 in size, and is roughened by the projecting beaks of 

 the peristomes. Both this and the preceding are deep- 

 water species. 



FAMILY XV. CELLEPORID^. 



Zooecia ca.lcareoiis, more or less vertical to the lolane 

 or axis of the colony, irregularly heaj^ed together, ivith a 

 terminal orifice. — T. H. 



Genus Cellepora, Fabricius (in part). 

 Zooecia urceolate, erect or suberect, heaped together 

 and irregularly disposed; the orifice terminal, with 



