Polyzoa of Queen Charlotte Islands. 17 



ScMzoporella Geciln^ Audouin. 



Incrusting a Cellepora ; a single specimen. 

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

 Islands.] 



Schizoporella hyalina^ Linngeus. 



Very abundant. 



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

 Zealand, Falkland Islands, &c.] 



ScMzoporella sanguinea^ Norman. 



On shell, a single specimen of great beauty. Avicularia 

 are altogether wanting. 



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



ScMzoporella hiaperta^ Michelin. 



Houston Stewart Channel ; Virago Sound. On shell and 

 stone. 



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

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



The surface in the younger cells is thickly covered with 

 minute punctures, which are more or less obliterated as calci- 

 fication proceeds. A rounded avicularium is present on both 

 sides of the orifice, and the large mamillated form with 

 pointed mandible is also abundant. 



ScMzoporella sinuosa^ Busk. 



Shallow water, on shell. 



[Scotland (west), and Shetland, Arctic seas. Gulf of St. 

 Lawrence.] 



Highly calcified, the ooecia being deeply immersed. 



ScMzoporella crassilahris, n. sp. (PI. XVIII. fig. 1.) 



Zocecia large, elongate, ovate, quincuncial, very distinct, 

 convex ; surface dense, punctured (the punctures often oblite- 

 rated by the calcification) ; orifice suberect, suborbicular, with 

 a broad, rounded, shallow sinus occupying nearly the whole 

 of the lower margin ; peristome raised and thickened, forming 

 a wall round the orifice, often massive in front, where it is 

 carried out into a broad projection, notched or sinuated in the 

 centre. Avicularia none. Ooecium large, rounded, broader 

 than high, with rather large punctures. 



Houston Stewart Channel, 15-20 fathoms, on small shells. 



