88 T. KOMAI : STUDIES ON TWO ABERRANT CTENOPHORES 



Stage and becomes a parasite. 



(7). The egg-cells are found in the ventral epidermis, i. e. in the 

 original pharyngeal epithelium, they show a structure very different from 

 that of the eggs of ordinary ctenophores, having no alveolar layer in 

 the centre. 



(8). Gastrodes shows relationship to the Platyctenea on one hand 

 and to the Cydippida on the other, but the distinct dorsiventrality 

 of the body which has resulted from the out-opening of the pharynx 

 apparently makes the form to be grouped into the former order. 



(9). The existence of a planula stage in Gastrodes affords an 

 evidence of the close relationship of the Ctenophora to the Cnidaria. 

 Moreover, the resemblance of the planula with that of the Plydrozoa 

 suggests a con.sanguinity between the Ctenophora and the Hydrozoa. 



