52 Annals of tlic Soutli African Museum. 



Nephridial pores in the lines of setae c. 



Clitellum at the 13-16 segments ( 4), in general ring-shaped. 



Male area a rounded pentagon, in front intruding somewhat into 

 the 16 segment. 



Prostate pores upon nearly hemispherical papillae in the lines of 

 setae b. 



Seminal furrows nearly straight, passing the IS segment laterally 

 from the setae ab which are normally developed. 



Sperrnathecal pores in the lines of setae b. 



I nil-null Anatomy. Alimentary tract: A very small but distinct 

 gizzard in the 5 or 6 segment. No calciferous glands. 



Male organs : Two pairs of sperm- sacs in the 9 and 11 segments. 

 Prostates with very thick and irregularly wound glandular part, 

 occupying not much more than the 17 and 19 segments respectively. 

 Penial setae very long and slender, switch-like, about 1*5 mm. long 

 and in the middle 13 /JL thick, proximally thickened to about 1^ /<, 

 distally diminishing to a thickness of about 5 /m, proximally bent only 

 a little, distally bent strongly in the form of a wide spiral. Distal 

 end a little broadened, two-edged, flattened or even a little hollowed 

 at the concave side, with indistinct granulation at the concavity. 

 The distal tip of the penial seta is simple. 



Spermathecae : Main pouch pear-shaped with short and narrow, 

 indistinctly separated duct. Into the latter opens a diverticulum 

 which is larger than the main pouch. The diverticulum has the 

 shape of a thick tube bent to form a knee, with a rounded 

 protuberance at the prominent angle of tho knee. 



CHILOTA LUCIFUGA (Bedd.). 



1897. At-iuitJtnilriltiK lin-ifnya, Beddard in P. Zool. Soc., London, 



1897, p. 343, fig. 2. 

 1900. Chilota lucifitga, Michaelsen in Tierreich, x., p. 146. 



Loc. Knysna forest (type of Acanthodrilus lucifuga), Knysna 

 main forest; Dr. E. Warren, leg. Jan., 1911. 



Ejcli'i'nal ( 'haracters. Length 65 mm., thickness li-2 mm., number 

 of segments about 103. 



Head tanylobous. 



Setae ventrally widely paired, dorsal ly separated, in general 

 aa : ab : be : cd == 7 : 5 : 8 : 8. <l/l = ca. % /<. Width of ventral pairs 

 diminishing towards the male pores slowly but finally more rapidly. 



Nephridial pores in the lines of setae c. 



Clitellum ring-shaped, at the 13-17 segments (= 5). 



