REPORT ON THE POLYZOA. 179 



Smittia trispinosa, Johnston. 

 Discopora trispinosa, Johnst. 

 Lepralia trispinosa, Jolmst., Busk, Hincks, 

 Escharella jacotini, Smitt. 



Isle of Man (Hincks). 



Genus Phylactella, Hincks. 

 Syn. Lepralia (part), auctt. 

 Alysidota (sp.), Busk. 

 Three British species. 



Phylactella collaris, Norman. 

 Lepralia collaris, Norman. 

 Isle of Man (Hincks. 



Genus Mucronella, Hincks. 

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

 Escharella, Gray. 

 Discopora, Smitt. 



Eight British species. 



Mucronella peachii, Johnston. 



Lepralia peacldi, Johnst , Gray, Busk. 

 Escharella immersa. Gray. 



Dredged oflF Spanish Head (Isle of Man), on Pccten, by 

 Prof. Herdman. Not previously recorded in this district. 



Mucronella variolosa, Johnston. 



Lepralia variolosa, Johnst., Couch, Busk. 

 Found encrusting Mytilus cdulis at Kamsey, Isle of Man. 

 Not previously recorded. 



Mucronella coccinea, Abildgaard. 

 Cellejjora coccinea, Abildgaard. 

 Lepralia coccinea, Johnst., Busk. 

 Lepralia mamillata, Searles Wood, Busk, Manzoni. 



Dredged by Prof. Herdman off Spanish Head, on Pecten, 

 and off Port St. Mary, on Laminaria roots. Also found on 

 Anomia (five fathoms). Very common in the Isle of Man. 



