a new genus of Zoophyte. 273 



able coralline is parasitical on the upper valve of an Anomia 

 Ephippium that is likewise almost crusted over with two or 

 three species of Lepralia. It is large enough to be easily seen 



Fig. 1. 



with the naked eye, but of such minuteness that it may be 

 readily passed over unnoticed, excepting by a naturalist of the 

 practice and acuteness of its discoverer. The stalk creeps 

 over the surface of the shell, to which it adheres loosely, and 

 is divided at intervals without order or regularity, — the shoots 

 forming sometimes a long simple thread, while at other places 

 they anastomose freely. The shoots are very slender, filiform. 



Fig. 2. 



smooth, colourless and pellucid, tubular, unjointed and horny; 

 and in general they are slightly swollen at the origins of the 

 Ann. Nat. Hist. Vol. 5. No. 31. June 1840. u 



