218 W. BLAXLAND BENHAM, 
Nais elinguis. 
Fic. 88.—The chete. a. Of dorsal bundle. 4. A ventral cheta. c. A genital 
cheta. 
Fie. 39.—View of genital region from above by transparency (from a living 
worm compressed). 0, 0, 0. Masses of ova at different stages of development 
which have dropped away from the ovary. sp. sac. Sperm-sac. spth. Sperma- 
theca. ze. Nephridium, 
Fic. 40.—Ventral view of anterior region of sexually mature worm, show- 
ing position of clitellum and the genital chete (gez. ch.). d. Dorsal cheete. 
v. Ordinary ventral chete. 
Fie, 41.—View of a nearly mature specimen, rather from the side, showing 
presence of genital cheete (gex. ch.) on one side only. d. The still persistent 
dorsal chete of Segment vi. v. The still persistent ventral cheete of the 
same segment on one side. 
Stylodrilus Vejdovskyi. 
Fic. 42.—Ventral view of head. Pr. Prostomium. 
Fic. 43.—Ventral view of Segments x and x1, to show penis and annula- 
tion (a, 6) of the segment. v. Ventral chete. 
Fie. 44.—Chete. a. From post-genital region, ventral or dorsal. 4. Pre- 
genital ventral bundles. 
