1 66 CATALOGUE OF ADDITIONS TO, AND ALTERATIONS 



Genus, Cabarea. — Lamouroux. 



1 — C. BoRYii, Audouin. 



On tlie rib of an Old " Crab Pot" off Gorran Haven, more 

 than' thirty years ago. The ' pot ' had been used for the crab 

 season in deepish water and lost, and afterwards washed ashore. 

 Eare. (C.W.P.) 



Genus, Bicellaria.- — Blainville. 



1 — Bicellaria Ciliata. — Linnceus. 



This very beautiful object is not rare on the Cornish Coast. 

 It occasionally grows in rounded masses, and as it acquires age, 

 the interstices get filled with muddy sand ; when so, from being 

 in gales of wind in the roughened sea, a twirling motion is 

 given to the mass and the delicate young protruding branches 

 are broken off, and thus a top shape is given to the sandy mass : 

 at first sight these abraded masses might be taken for sponges. 

 After a time of comparative quiet, the builders again cover them 

 over with fresh branches, sand fills up the new part, and thus 

 the masses are enlarged from time to time, and as well smoothed 

 again and again into top-shape, unti] got up by the dredger or 

 thrown ashore in gales of wind. I well remember how much I 

 was piizzled with the first I got ; however, I soon found it out. 

 I have seen them since in all stages of growth. (C.W.P.) 



Genus, Bugula. — Oken. 



1 — Bugula Tukbinata. — Alder. 



■ Hincks, Dev. and Corn. Cat., 37. 



Falmouth (Cocks.) 



"This fine species— had been confounded with Bugula avicu- 

 laria, until detected by the late Mr. Alder's keen and discrimin- 

 ating ej^e." It attains a large size, and forms large clustered 

 growths beneath the ledges of rocks in the clefts and gullies, 

 and under surface of stones near low water mark. It has not 

 yet been noticed in the further north. Dorset on drift wood. 

 (T.H.) Falmouth (Cocks). 



Genus, Beania. — -Johnsto7i. 

 1 — Beania Mikabilis — Johnston. 

 Bream Sands, near Falmouth. (Cocks.) 



