592 



DR. F. E. BEDDARD OX 



connection with the general .arrangement of the muscles of the 

 body. 



Yon Linstow particularly mentions that in the species studied 

 by himself, the anterior part of the body is devoid of calcareous 

 bodies. In the specimens which I have examined by sections, 

 the calcareous bodies are peculiarly numerous anteriorly, and 

 especially in the scolex, where they form in parts closely aggre- 

 gated masses as is shown in the accompanying sketch (text-fig. 1). 



Text-fisfure 1. 



W. I/. 



m. 



Longitudinal section througli scolex. 



ca. Calcareous bodies, h. Hooks seen in transverse section tlirougli "root." 

 m. Muscles of rostellum ending above in rostellum. .s. Sucker. 

 iv.v. Water-vascular tubes. 



I need not describe their distribution in the scolex exactly, for 

 they occur everywhei*e between the oi^ter skin and the suckers 

 and rostellum, except, however, among the muscle-fibres of the 

 longitudinal muscular layer. Fui'ther back in the neck region 

 the medulla is lai^gel}" occupied by masses of calcareous bodies 



