62 R/r. Günther, Oll tlie Strile turo and Affini tiesofMiiestrapiirasitesKrohn etc. 



Some Protozoa [üiclyocysta) were seen in the interior of this indi- 

 viduai. 



Fig. 41). Ga3trovascular system, normal. Cnidact I much more developed than 

 the other three. Tentacles all reduced, but tentacle III more deve- 

 loped than the other three. 



Fig. 41. A young individuai with 3 tentacles well developed. The medusa 

 has turned itself inside out so that the cxumbral surface has become 

 cup-shaped. The distal end of the manubiium is widely extended 

 over the surface of the rinjUirliol'. Four swellings were noticed one 

 at each junction of a radial canal wlth the stomach: it is believed tliat 

 these may indicate the point of origin of the gonads. 



Fig. 42. Tentacles all reduced. Cnidact of radius I discontinous. Gastrovas- 

 cular system highly irregulär, there being 6 radial canals one of which 

 bifurcates. The black dotted line indicates the exumbral cavity or 

 "Scheitelhöhle". 



