Class VI. W O R M S. 57 



that thofe animals are in higheft feafon, when 

 pregnant. 



XVIIL Body gelatinous, orbicular, convex above; MEDUSA. 

 flat or concave beneath. 

 Mouth beneath, in the middle. 

 Tentacula placed below. 



Borlase'j Cornwall, p. 256. tab. xxv. jig, 7, 8. Fufca, 



48. Brown:. 



M. with a brown circle in the middle ; fixteen rays 

 of the fame color pointing from the circumference 

 towards the centre. On the circumference a range 

 of oval tubercles, and crooked fangs placed alter- 

 nately. Four ragged tentacula extend little farther 

 than the body. 



BorlaseV Cornwall, p. 257, tab, xxv. Jig, 9, 10. Purpura, 



49, Purple, 



M. with a light-purple crofs in the centre; between 

 each bar of the crofs, is a horfe-fhoe-ftiaped mark 

 of deep purple ; from the circumference diverge 

 certain rays of pale purple. Four thick tentacula^ 

 Ihort, not extending farther than the body. 



Borlase'j 



