\)16 THE NATURAL HISTORY OF 



SPECIES V. 



M E D U S A M A R S U P I A L I S, 



OR 



PURSE-SHAPED MEDUSA. 



The substance of this is tougher than any other species 

 previously examined. It has one large cavity, and is 

 divided by the finny fringes into eight segments, each 

 alternate pair of which are similar. The colour is of a very 

 pale crimson, with waved purple lines; finny fringes deeper 

 crimson. This animal appeared almost without sensation. 

 The only evidence it gave of feeling was in an increased 

 vibration of the finny fringes. Though it was cut into 

 pieces, each portion, on which there was any fringe, con- 

 tinued, by its incessant play, to give evidence of life during 

 two or three days ; after which it became putrescent and 

 began to waste away. This animal was found in the Spitz- 

 bergen Sea. Captain Scoresby never saw but one specimen. 



SPECIES VI. 



MEDUSA UTRICULUS, 



OR 



BOTTLE-SHAPED MEDUSA. 



Caught in a transparent green sea, in latitude 75° 48' N., 

 longitude 8 Q W. A sensitive animal. Large single cavity. 

 Eight segments. Finny fringes white and iridescent. Form 

 ovoidal, with compressed mouth. 



