Plate 72. 



The three uppermost figures are oi Cassiopra fronJosa and show two varieties 



ot color pattern of the exumbrella and one view of the subumbrella 



showing; the mouth-arms. 

 The seven lower figures are of Casslopcti xnmachana showing varieties in 



color-pattern. The central figure shows the exumbrella of a medusa 



with its mouth-arms spreading outward. 



Photographed from life, b}' the author. The medusae are seen upon a 



sand\- liortom. 



