Figure 147. — Convoluia convolula. 



69 (65) Small tube-shaped penis with a false seminal vesicle attached at proximal end; cellular spermatic duct present. 



From Red Sea (Fig. 148) 



Genus Brachypea. 



Figure 148. — Brachypea kenoma. 



70 (67) Special yolk-carrying cells absent; yolk deposited in the eggs 72 



70 (67) Developing eggs in one layer toward the ventral 

 side of the body with a layer of special yolk- 

 carrying cells (yolk-glandlike layer) dorsal or dor- 

 solateral to the eggs (Fig. 149) 71 



Figure 149. — Polychoenis, cross section. 



45 



