192 CALIFORNIA ACADEMY OF SCIENCES. 



PLATE LIV. 



SPARGANOPHILUS BENHAMI. 

 119. Five cross-sections through various parts of the body. 



n. Through posterior part of pharynx in somite v. s. gl. dorsal septal glands. I. x. gl. lower septal glands. 

 1i. Through spermathecae and somites viii and ix. 



c. Thi'ough somite x. t. c. r. tube of ciliated rosette. 



d. Through oviduct, somite xiv with sperm-sacs. 



«. Through clitellum in somite xix, showing tubercnla pubertatis. cl. c. 1 long clitellar cells, rl. c. 2 short 

 clitellar cells, spd. spermduct running below the muscular layers. 



