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TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



a polype with its tentacles, and 'No. 3 some of the scattered 

 spicules of carbonate of lime which are found imbedded in 

 the flesh of the colony. 



No. 4 shows another much rarer animal {Sarcodictyon 

 catenata), obtained by dredging in deep-water off Port 

 Erin. It is closely related to Alcyonium, and figures 2 

 and 5 show that the polypes are very similar, although the 

 colony of Sarcodictyon (No. 4) is merely a creeping red 



rootlet or " stolon " connecting the bases of the small 

 conical polypes and generally attached to a dead shell or 

 a piece of stone. No. 6 shows the spicules, which are red, 

 and cause the colour of the colony. 



Professor Hickson, of Manchester, has written our 

 L.M.B.C. Memoir on Alcyonium, and Professor Herdman 

 has contributed some papers on Sarcodictyon to our 

 Reports. 



