Report upon the Oligochaeta. 59 



CHILOTA PARVUS, n. sp. 



Loc. Newlands slope of Table Mountain near Cape Town; Dr. P.' 

 Purcell, leg. Aug., 1886. 



K.rti'nial Characters. Length 26-30 mm., thickness ca. 2 mm., 

 number of segments 80-90. 



Head indistinctly tanylobous. 



Setae at the hinder end of the body somewhat enlarged, in general 

 widely paired or separated. At the fore-end of the body 

 aa : ab : be : cd : dd --= 5 : 3 : 5 : 5 : 10, dd -- = J /j, ; at the hinder end 

 aa : ab : be : cd : dd = 4:3:4:4:6. 



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



Prostate pores between the lines of the setae a and b. 



Spermathecal pores in b. 



Internal Anatomy. Septum 4/5 complete ; all septa tender, but 

 6/7-14/15 somewhat thicker than the others. 



Alimentary tract : A small glittering gizzard in the 5 segment. 

 No calciferous glands. 



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

 Prostates restricted to a single segment ; glandular part serpentine, 

 diict short and narrow. Penial setae about 0'6 mm. long, and 

 proximally 18 ju thick, distally 15 p thick, somewhat bent at the 

 ends. Distal end flattened and broadened like a spatula, about 28 p. 

 broad. Distal part with exception of this spatula occupied by 

 numerous toothed transverse ridges which are placed at the crossing- 

 points of two systems of spiral lines. 



Spermathecae : Ampulla irregularly pear-shaped; duct thin, 

 tubular, somewhat shorter than the ampulla. Into the distal end 

 of the duct open at its fore-side by means of a common mouth two 

 nearly globular unstalked diverticula which are separated from each 

 other only imperfectly. The diverticula are provided with numerous 

 very small seminal chambers which are only imperfectly separated 

 from the central lumen of the diverticula. 



[AcANTHODRiLUs] sCLATERi, Bedd., spec, inquir. aut. spuria. 



1897. Acanthodrilus sclateri, Beddard in P. Zool. Soc., London, 



1897, p. 342. 

 1900. Chilota sclateri, Michaelsen in Tierreich, x., p. 148. 



Loc. Knysna forest (types of Acanthodrilus sclateri). 



Remarks. The bottle labelled by Beddard as Acanthodrilus 

 sclateri contained, besides 3 fragments, 12 intact specimens out 



