REPRODUCTION AND DEVELOPMENT 



107 



Fig. 57. Successive positions during copulation by Erpohdella. 



From Nagao, 1957. 



Fig. 58. Section through two specimens, A and B, oi Erpohdella 

 octoculata during implantation of the spermatophore. m, mass of 

 spermatozoa in ovary; o, ovarian strand; o.s., ovarian sac; sph, 

 spermatophore; spz, spermatozoa. From Grasse, 1959, 



after Brumpt. 



