G. GORGONIA. 211 



FEATHER. 



44. Gorgon I A penna. Branching and dichoto- 

 mous ; branches expanded, and few in number ; ra- 

 mifications alternate, straight, parallel, approximate, 

 and filiform ; polypi alternate, recurved, and lateral ; 

 rind thin, and whitish ; axe solid, and of a fawn co- 

 lour ; height about two decimetres ; length of the ra- 

 mifications from two to three centimetres. 



Australasia. 



ELONGATED. 



45. Gorgon I A elongata. Dichotoraous ; branches 

 remote; polypi scattered, and almost imbricated. 



Northern Sea and Atlantic Ocean. 



RUSHY. 



4G. GoRGONiA juncea. Very simple, very long, cy- 

 lindrical, and attenuated at the extremity ; polypi 

 scattered and small ; rind red or orange ; height from 

 ten to fifteen decimetres. 



American Ocean, and the Isle Mauritius. 



Nota. A fragment of this Gorgonia more than a 

 metre high, and fixed to a piece of lava, was found 

 and brought me from the Isle of France or Mauritius. 



MOUSE-TAIL. 



47. Gorgonia myvra. Stem simple, filiform, 

 bent, and whitish ; polypi knob-formed, transversely 

 wrinkled, curved towards the stem, and placed by 

 double rows in an alternate disposition on the two 

 opposite sides of the stem ; height from fifteen to 

 twenty centimetres. 



