BRITISH ZOOPHYTES. 249 



FAMILY X. CRIBRILINID^. 



Zoarium adnate, forming an indefinite crust, or erect. 

 Zocecia having the front ivall — more or less — fissured, 

 or traversed by radiating furroios. — T. H. 



Gi-ENUS I. Cribrilina, Gray. {Cribrum, a sieve.) 



Zoarium incrusting. Zooecia contiguous, having the 

 front* more or less occupied by transverse or radiating 

 punctured furrows ; orifice semicircular or suborbicular. 

 — T.H. 



1. C. RADIATA, Moll. 



Eschara radiata {Moll.), Lepralia innominata {R. Q. 

 C, D.L., G.J., Busk, T. H., Manzoni), L. scripta, L. 

 pretiosa, L. calomorpha (Beuss), Reptescharella pyg- 

 msea (B'Orb.), C. innominata (Smitt), L. annulata 

 (Heller, Manzoni). 



Hab. : Common on South and South- West Coasts, 

 and to the West Coast of Scotland. 



" The cells are white, ovate, and sometimes almost 

 orbicular, and when the ribs diverge from a central 

 umbo, each cell is like a pecten in miniature.^^ — Lands- 

 borough. Some varieties have five or six spines. 



The cell, like that of many other Polyzoa, is richly 

 sculptured, a large number of ribs or ridges branching 

 towards the margin from a central line, point, or pro- 

 jection, the interspaces being often decorated by punc- 

 tures and dots. The appearance of the colonies is 

 subject to considerable variation, being sometimes deli- 

 cate and gauze-like, at others coarse and dull in colour. 



2. C. PUNCTATA, Rassall. Plate XX. fig. 4. 

 Lepralia punctata (Hassall, Bnsh, G. /., I). L.), 



Escharipora punctata (Smitt). 



