SOME MEDUSJî OF JAPANESE WATERS. 27 



the œsopbagus, and dichotomously branched. Two or three of 

 them are found at each perradial corner of oesophagus. The 

 genital glands are four, well developed, vertically compressed 

 pouches. They run together with radial canals for more than 

 two-thirds the length of these. The four tentacular bulbs are 

 arched toward aboral side ; on each of them there are about forty 

 long tentacles in one row, and two short and stiff tentacles, 

 directed more or less upwards in the middle parts. The radial 

 canals have ragged outlines. The velum is broad and strong. 



The medusa measures 13.5 mm. in breadth, and 16 mm. in 

 height. 



Collected by Prof. Ijima's party at Korsakoff in 1906. 



Cladonemidae. 



Uvashhtieaf^ n. g. 



Cladonemidae with four radial canals, four amentiform ten- 

 tacles, and meridional bands of nematocysts on exumbrella. There 

 are four, interradial, hollow spaces, between exumbrella and sub- 

 umbrella, which spaces I propose to call the interumbrellar spaces. 

 They are something quite different from the " Scheitelhöhle " or 

 the " Nesselschläuche." 



Ut'cisJiiniea globosa, n. sp. 



(PI. V, Fig.^. 27-29.) 



The umbrella is globose, slightly higher than broad, very 

 thick and armed with numerous meridional bands of nematocysts. 



* Urashima, name of legendary fishenuaii, who is said to have lived with the Sea-Goddess 

 "Otohime" in her submarine palace. 



