DIASTOPOKA. !">" 



l>runchiii stems rise from the same base, forming very 

 beautiful clusters. 



The Mediterranean E. proboscidea, M. -Edwards, is a 

 larger species, of more slender habit, and wanting the 

 clavate expansions, but very nearly akin to the present. 

 It has not occurred in our seas, the specimens which John- 

 ston referred to it being really Palmicellaria elegans of 

 Alder. (See page 378.) 



HABITAT. On shell, &c., shallow to deep water. 



LOCALITIES. Wolf Rock, near Penzance (C. W. P.) : 

 under Berry Head, Torbay (T. H.) : coast of Antrim, off 

 the Maiden Lighthouses, 62-72 fathoms (Swanston). 



RANGE IN TIME. Coralline Crag (S. Wood). 



Genus DIASTOPORA (part.), Lamouroux. 



Dcr. From Siavrrj^a, an interval, and Tropes, a passage or openiug. 



BERENICEA, Lamouroux : D'Orbigny (for one section of the genus). 



DIASTOPORA (part.), Lamx. : Smitt. 



DiAsroroBA, Johnston : Busk : &c. 



TUBULIPORA (sp.), Johnston : &c. 



PATINELLA (sp.), Busk : Hincks. 



MRSEXTERIPORA, Blainville : Busk: &c. (for foliaceous bilanunatc forms). 



DISCOSPARSA, D'Orbigny. 



GENERIC CHARACTER. ZOARIUM adnateandcrustaceom, 

 or foliaceous, usually discoid or flabellate, less commonly 

 irregular in form. ZOCECIA tubular, with an elliptical 

 or subcircular orifice, crowded, longitudinally arranged, in 

 great part immersed. 



THERE seems to be no sufficient ground for detaching 

 this group from the present family. In its early state 

 Diastopora resembles 7W//////wa ; and its peculiar habit 



