BRITISH ZOOPHYTES. • 265 



Lepra] ia sinuosa {BiisTc), Escharella linearis forma 

 secundaria {Smitt). 



Hab. : Shetland {A. M. K), West of Scotland {T. H.). 



The colonies are red in colour, and are found at 

 varying depths to 150 fathoms. 



The zooecia are irregularly rhomboidal or ovate in 

 shape, marked with punctures, or in some cases with a 

 reticulated pattern. The orifice is placed at the upper 

 margin of the cell, and is circular, with a notch below. 

 The ooecia have a distinct circular perforation in the 

 centre, and are granulated. In this and the succeeding 

 species of this genus the avicularia are usually wanting. 



15. S. Cecilii, Audonin. 



Flustra Cecilii [Aud., Savigny), Lepralia Cecilii 

 (Bush, McA., T. H.), Jersey {Mrs. BucMand), Guernsey 

 {T. H.). 



This is a deep-water species, forming " vitreous and 

 glistening colonies when fresh.'' The cells have large 

 punctures and distinctly semicircular orifices, with a 

 single notch or sinus in the centre of the lower margin 

 of each. The ooecia are large and prominent. 



16. S. CEUENTA, Norman. 



Lepralia violacea (var. cruenta. Bush), L. cruenta 

 {A. M. N.), Discopora cruenta {Smitt). 



Hab. : Shetland {A. M. N.), Channel Islands {Bush), 

 Peterhead {C. W. P.). 



This is a rare species from deep water. It forms 

 deep red-coloured colonies, sometimes turning black 

 when dry. 



The cells are very irregular in shape, with very large 

 punctures over the front and round the margin of each. 

 There are no spines or avicularia, but the orifice has 

 a broad margin which is a conspicuous feature. 



