212 CLASS HI.— ORDER II. 



ISECKLACE- FORMED. 



48. Gorgon I A moniliformis. Simple, upright, and 

 filiform ; polypi tuberculous, sometimes alternate, and 

 sometimes dispersed, with an umbilical opening ; rind 

 white, and very thin, 



Australasia. 



BRISTLY. 



49. GoRGONiA setacea. Simple and stiff; rind 

 white and cretaceous, almost warty. 



American seas. 



SECTION IV. 



Doubtful Poli/pidoms, which may not belong to the genus 



Gorgonia. 



BRIAREAN. 



50. Gorgon I A Briareus. Slightly branching, cy- 

 lindrical, and thick ; rind nearly white internally, and 

 ashy externally. 



Seas of Southern America. 



Nota, The polypi of this Gorgonia appear very 

 large ; it is in these that Ellis, in dissecting, thought 

 he discovered nerves and muscles. 



FLORID. 



51. Gorgonia ftorida. Branching ; branches scat- 

 tered and reflected ; rind reddish, and spongy ; cells 



