lo University of Michigan 



Plate I 



All outlines have been made with the aid of the camera lucida and 

 details filled in at the same scale of magnification. 



Abbreviations used: ci.p., cirrus-pouch; g.p., genital pore; tt., testes; 

 ut.p., uterine pouch ; v.d., vas deferens ; vi., vitellaria. 



Figs. I and 2. Head of type specimen seen from upper and lower 

 surfaces respectively. 



Fig. 3. Head of a smaller specimen found in Professor Pearse's 

 material. Drawn to the same scale as figs, i and 2. 



Fig. 4. Mature proglottid of type specimen. 



Fig. 5. Ripe proglottid of type specimen. 



Fig. 6. Last proglottid of type specimen. 



Fig. 7. Mature proglottid from specimen 12.148, in Professor 

 Ward's collection. 



Fig. 8. Portion of proglottid showing the shape of ovarian lobes 

 under certain conditions of contraction of the proglottid. Drawn to 

 the same scale as fig. 7. 



