114 CAI.llOliMA Ai'ADK.MY OK SCIENCES. 



PLATE XLI. 



ECLIPIDRILUS FKIGIDUS. 



78. A (lingramumtic figure of the region of the reproductive organs, including somites ix to xvii, showing the arrange- 



meats of the reproductive organs. The body- wall is represented ns being cut open dorsally and spread out. 

 br. the bridge or narrow part of the prostate connecting the wide and lower part with the storage chamber of 

 the spermatozoa, str. storage chamber of spermatozoa. The prostate and ciliated rosettes are somewhat 

 stretched, as otherwise they could not be seen both at the same time. 



79. Part of theclitpllum in transverse section, showing the clitellar glands, the Innf^itmlinal an<l transverse mnscn- 



lar layers. 



80A. One of the blood glands or horzkiirper. 



80H. A single gland cell of tin- former. 



81. A transverse section of the dorsal vessel, showing the blood gland occupying the ventral part of the vessel. 



82A. Cross-section of the lower part of the spermatheca, at the spermathecal pore. htl. body-wall. ep. inner lining 

 epithelium, m. muscular transverse layer, ex. exterior layer. /. m. longitudinal muscular layer of the 

 body-wall. I. m. transverse muscular layer of the body-wall. 



8'2B. Cross-section of the distal end of the spermatheca. 



