EXPLANATION OF PLATE I. 



Peripatopsis Dewaali M. Weber. 



Fig. i. Part of the right ovary, with two spermatopliores, one of which 

 projects thi ough an opening in the wall (X 250). — e. s. egg 

 stalk. sp. spermatophore. ut. uterine wall. 



» 2. Ovarian wall, Avith two egg stalks projecting into the body cavity 

 (X 250). — e. 3'oung egg. ov. cavity of the ovary. 



» 3. Ovarian wall, with two young eggs lying in it (X 000). — ov. 

 cavity of the ovary. 



» 4 and 5. Young eggs on stalks, projecting into the ovary (fig 4: 

 X 600; üg 5: X 850). 



» 0. Egg lying in the body cavity, against the uterine wall (X 600). 



» 7. Egg lying in the body cavity (X 600). 



» 8. Egg (stalked) with a projoction pointing to a spermatophore, which 

 lies in an opening of the ovarian wall (X 250). ■ 



.» 9. Fertilized egg and young embryo, lying in the ovary. The walls 

 are cut somewhat obliquely (X 600). 



» 10. Older embryo (blastula), lying in the ovary (X 600). 



