198 Papers from the Department of Marine Biology. 



exumbrella finely granular, flatter than a hemisphere. The bell-margin is 

 badly damaged but there appear to be 6 to 8 cleft or subdivided velar lappets 

 in each octant. Their general contours are rounded, and inter-lobular clefts 

 extend radially a short distance up the exumbrella surface. 



The 8 rhopalia have each an ocellus, but no exumbrella pit. Perradial 

 diameter of arm-disk, 55 mm. ; width of subgenital ostia, 34 mm. ; width of 

 perradial columns of arm-disk, 12 mm.; subgenital porticus wide and unitary; 

 naked upper arm, 20 mm. long; length of the abaxial side of the mouth-bearing 

 part of each arm, 35 mm. ; length of the terminal naked axial filament of each 

 arm at least 40 mm., but all are broken at their ends. 



There is a thick felting of short filaments upon the arm disk. 



The circular muscles are unitary, being only partially interrupted in the 

 8 principal radii. 



The 8 radial-canals are each about 3.5 mm. wide, and in addition there are 

 about 8X10 slender radial-canals, all of which anastomose with one another 

 and with the 8 chief radial-canals, forming a wide network in the subumbrella. 



In formalin the 8 chief radial-canals are violet. 



Schultze describes this medusa from Ternate and from Amboina, Malay 

 Archipelago. 



