A NEW BRANCHIATE OLIGOCHATE. 341 
Fic. 7.—A part of integumental network of posterior segments. Br. 
Branchia. Jn. Intestine. 
Fie. 8.—Ventral external view of Segments 9—14. c/. Clitellum. s. Ven- 
tral seta bundles. Sp. Spermathecal pores. . Atrial pores. . Oviducal 
pores. zp. Nephridiopores. 
Fie. 9.—Diagram to illustrate principal blood-vessels of Segment 8. ai. 
Alimentary canal. WV. Nerve-cord. D. V. Dorsal vessel. V. V. Ventral 
vessel. H. Contractile heart. §.2. V. Supra-intestinal vessel. H'. Intestinal 
heart, giving off on each side a vessel which joins the integumental network. 
L. V. Lateral vessels connected with integumental network. 
Fic. 10.—Principal trunks of vascular system in anterior region of body. 
Lettering as in Fig. 9. 
Fic. 11.—Corpuscles from axial cavity of branchia. 
Fie. 12.—Male efferent apparatus. /. Funnel of vas deferens. Vd. Vas 
deferens. X. Junction of vas deferens with atrium (4/.). Cav. Cavity of 
atrium. Vd’. Coils of vas deferens lying behind atrium. a. Ciliated thin- 
walled tube leading from atrium to 4, protrusible penis, separated by a space 
from its muscular sheath. 
Fic. 13.—Transverse section through body in branchial region. Br. d. 
Dorsal branchia. Br. v. Ventral branchia. Int. Intestine. WV. Nerve- 
cord. sp. Septum separating dorsal from ventral part of celom. JD. V. 
Dorsal vessel. V.V. Ventral vessel; the latter gives off a branch, which 
immediately divides to supply dorsal and ventral branchie. 
Fic. 14.—Extenal opening of nephridium through a dilated vesicle (.). 
s» Ventral seta. 
Fie. 15.—Longitudinal section through head, to show position of brain, 
which lies in prostomium and first segment of the body. 
VOL. XXXIII, PART I1I.—NEW SER. AA 
