170 LIVERPOOL MARINE BIOLOGY COMMITTEE REPORT. 



Flustra foliacea, Linn. 



Eschara foliacea, Linn, Ell. and Sol., Lamk., Van Ben, 

 Found everywhere. Very abundant at Hilbre Island, 

 West Kirby, New Brighton, Holyhead, Isle of Man, &c., at 

 low-water mark. 



Flustra papyracea, Ellis and Sol. 

 Flustra chartacea, Couch, Johnst. 

 Hilbre, very scarce (Byerley). 



Flustra carbasea, Ellis and Solander. 



Carbasea papyracea, Gray, Bt. M. Cat. 

 Carbasea Papyrea, Busk, B.M. Cat., Alder. 



Bootle, rare (Tudor). 



Flustra securifrons, Pallas. 



Narrow-leaved hornwracTc, Ellis. 



Eschara securifrons, Pallas. 



Flustra truncata, Linn., Lamk., Flem., Johnst., Busk. 



Chiefly a northern form. Rhyl (Shrubsole). Not pre- 

 viously recorded. 



Family VIII. — Membranipgrid.^. 

 Syn. CelUporidcB, Johnst. 



Genus Membranipora, Blainville. 



Syn. Flustra (part), Linn, Lamk., Flem., Lam. 



Has a wide range both in space and time, ranging to the 

 Cretaceous epoch. 23 British species. 



Membranipora lacroixii, Audouin. 

 Bijlustra lacroixii^ Smitt., Flor., Bryoz. 

 Membranipora membranacea, Johnst. 

 Flustra lacroixii, Savigny. 



Ramsey, Isle of Man, on stones in tide-pools (Hincks). 

 Altcar and New Brighton on Buccinum (Lomas). Colwyn 

 Bay (Shrubsole). 



