Edible Medusae. 209 



The ocular lobes are much receded from the general umbrella 

 margin. 



The exumbrella is pretty thickly covered with fine pointed granules. 



The distauce between the centre of the subumbrella and the 

 point of attachment of the oral pillar is about half the distauce be- 

 tween the latter and the umbrella margin. 



The oral pillar is comparatively narrow, its breadth in the middle 

 part being a little less than ] of its length. 



The subgenital cavity is somewhat heart shaped. Its breadth is 

 about 3 tiraes that of the oral pillar. A roughened protuberance is 

 fouud at the mouth of each subgeuital cavity. 



There are eight pairs of scapulets. Each scapulet is split into 

 two equal lateral parts at the distal end. 



The oral arms are comparatively short. The lower part of the 

 arm is about the same in length as the free portion of the upper arm. 

 The two abaxial wings of the lower part are large. The appendages 

 of the oral arm are the same as in the preceding species. 



The gastrovascular System is also very much complicated. The 

 canals of the subumbrella are nearly the same as those of the pre- 

 ceding species. 



The exumbrella and the oral arms have small, round, brown spots 

 irregularly distributed. 



The diameter of the umbrella : 340 mm. 



The speeimens examined were from the Ariake Bay in Küshü. 



Dec. 12, 1898. 



