

Pohjzoa of Queen Charlotte Islands. 445 



elevated below the mouth, so as to inclose a small cavity or 

 chamber, within which is placed a slightly raised circular 

 avicularium. Ooecium (?). Zoarium forming a light brownish 



crust. 



In this species the surface glistens as if varnished. The 

 cells are well defined and simple in structure. In the older 

 zooecia the punctures disappear beneath the calcification, the 

 reticulations showing faintly through the stony crust. 



Family Myriozoidae (part,), Smitt. 



SCHIZOPORELLA, Hincks. 



Schizoporella auriculata, Hassall, form ochracea, Hincks. 



(Plate XVIII. fig, 5.) 



Off Cumshewa. [Britain, coast of Cornwall.] 

 I have not noticed the normal form of this species; but the 

 variety which I have named ochracea, and which is charac- 

 terized by the presence oi an immersed oval avicularium on 

 the front of the cell a short distance below the mouth, is not 

 uncommon. 



In the specimens from the Queen Charlotte Islands there 

 is almost always a small nodule immediately below the avicu- 

 j larium, which is wanting in the British form. 



Schizoporella Cecilii, Audouin. 



Incrusting a Cellepora ; a single specimen. 

 [Mediterranean, Australia, Britain (south-west), Channel 



Islands.] 



Schizoporella hyalina, Linnaeus. 



Very abundant. 



[Arctic seas, Britain, California, Africa, Australia, New 

 Zealand, Falkland Islands, &c.] 



Schizoporella sanguinea, Norman. 



On shell, a single specimen of great beauty. Avicularia 



are altogether wanting. 



[Britain (south-west), Mediterranean, Madeira, Florida.] 



Schizoporella biaperta 1 Michelin. 



Houston Stewart Channel; Virago Sound. On shell and 



stone. 



[Britain (south), Arctic seas, Mediterranean, Madeira, Flo- 

 rida (deep water), Bass's Straits.] 





