Mr. F. S. Conaiit on the Cubomedusge. 



35 



half the depth of the cavitj, and at times evea to the bell- 

 margin. In the gelatine of the proboscis an in-egular number 

 (15—22) of sensory organs resembUng otocysts, from the 

 presence of which comes the specific name. Phacelli brush- 

 shaped, composed of from 7 to 13 filaments springing from a 



Fis:. 2. 



Tripedalia cystopliora. 



single stalk in each quadrant, or, rarely, from two separate 

 stalks in one of the quadrants. Distance of tlic sensory clubs 

 from the bell-margin about i or \ of tiie height of bell. 

 Breadtli of velarium about ^ the diameter of bell at margin ; 

 ■with 6 velar canals on each quadrant j the canals simple, 



