Class VI. MEDUSA. SEA-NETTLE: 121 



GENUS XXXII. MEDUSA. SEA-NETTLE. 



Body gelatinous, orbicular, convex above ; flat 



or concave beneath. 

 Mouth beneath, in the middle. 

 Tentacula placed below. 



Borlase's Cornwall, p. 256. tab. xxv. fig. 7> 8. 1. Fusca, 



Brown. 



M. with a brown circle in the middle ; sixteen 

 rays of the same color pointing from the cir- 

 cumference towards the centre. On the cir- 

 cumference a range of oval tubercles, and 

 crooked fangs placed alternately. Four ragged 

 tentacula extend little farther than the body, 



Borlase's Cornwall, p. 257^ tab. xxv. Jig. Q, 10. 2. Purpura. 



Purple. 



M. with a light-purple cross in the centre ; be- 

 tween each bar of the cross, is a horse-shoe- 

 shaped mark of deep purple ; from the circum- 

 ference diverge certain rays of pale purple. 

 Four thick tentacula^ short, not extending far- 

 ther than the body. 



