818 



MR. J. T. JOHNSON ON THE 



[June 20 



like, tapering, and shai'pened off to a point at the extremity. 

 Minute upright conico-subdeltoid spines are irregularly scattered 

 on the ultimate brauchlets, the other parts o£ the corallum being 

 spineless (fig. III. 3, p. 823). Polyps pale red, with six tentacles. 

 The remains of the ccenencbyma and polyps are seen on the speci- 

 men as a brown pellicle coating the finer branches, and extending 

 as a thin web or film from branch to branch. 



Fig. I. 



Leiopatkes expansa, sp. n. About | nat. size. From a photograph. 



The only specimen of this new species that I have met with 

 was obtained from a fisherman twenty years ago. It is without 

 a base, and has a height of 405 millim. (16 in.), with a spread of 

 380 millim, (15 in.), but its spread when perfect was probably not 

 less than 445 milUm. (ITg in.). The thickest part of the stem 

 is only 5 millim. in diameter. 



No fusion of branches is anywhere visible. The elegant flabel- 

 late form and delicate ha,bit seem to distinguish this sufficiently 

 from known species of Leio^athes. 



Hob. Madeira. 



