REPORT ON THE POLYZOA. 175 



Microporella impressa, Audouin. 



Fhistra impressa , Aud., Sav 

 Lepralia granifera, Jolinst., Busk. 



Isle of Man (Hincks). 



Microporella violacea, Johnston. 



Lepralia violaaea, Johnst , Busk, &c. 

 Porina violacea, Smitt. 



Isle of Man (E. Forbes). 



Genus Chorizopora, Hincks. 



Syn. Flustra (sp.), Audouin. 



Lepralia (sp.), Jolinst , Busk. 



Only one British representative. 



Chorizopora hrongniartii, Audouin. 

 Lepralia hrongniartii, Busk. 

 Isle of Man (Hincks). 



Family XII. — Porinidae. 

 Not found in Liverpool Bay. 



Family XIII. — Myriozoid^. 



Syn. CelleporidcB (part), Johnst. 

 Memhraniporidce, Busk. 



Genus SchizoporeUa, Hincks. 

 Syn. Lepralia (part), Johnston, Busk, &c. 

 This genus has eighteen British species. 



SchizoporeUa spinifera, Johnst. 



Lepralia ciliata, Hass. and Couch. 

 Lepralia spinifera, Johnst., Busk (in part). 



Llandudno (Hincks), and Isle of Man, off Port Erin, 

 dredged by Prof. Herdman (ten to fifteen fathoms). 



