54 Annals of the South African Museum. 



Prostate pores in b. 



Seminal furrow laterally convex, passing the 18 segment just 

 lateral from the setae ab, which here are normally developed. 



Spermathecal pores in b. 



Copulatory organs : Apparently constantly an unpaired copulatory 

 cushion placed intersegmentally at 21/22, rarely a second at 20/21, 

 in addition some smaller paired copulatory cushions or papillae 

 at the hinder part of the 9 segment or at the hinder part of the 

 8 and the fore part of the 9 segment. 



Internal Anatomy. Septa 8/9-10/11 thickened. 



Alimentary tract : A distinct gizzard in the 5 segment. No 

 distinct calciferous glands. 



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

 Prostates long, tubular ; glandular part coiled at least in the distal 

 part, sometimes stretched in the proximal part, and here attached to 

 the sacs of the penial setae. Duct short and thin. Penial setae 

 very long and slender, about 5-8 mm. long and proximally ca. 35 p 

 thick, clistally diminished in thickness, somewhat before the distal 

 end 10 /.t thick. Distal end widely bent like a corkscrew, flattened, 

 without ornamentation. 



Spermathecae : Ampulla pear-shaped ; duct thin and slender, 

 longer than the ampulla. At the proximal end of the duct is an 

 unstalked diverticulum, which is attached to the duct along the 

 greater part of its length and free only at the smaller extreme end. 

 The outer border of the diverticulum has two or three slight 

 notches. 



Formae. The specimens collected by Dr. E. Warren differ in 

 length and in the arrangement of the setae somewhat from the type 

 specimens ; they may be separated as a distinct form. 



f. typicus : Length 60-80 mm., thickness 3^ mm. ; aa : ab : be : 

 cd ==3:2:3:3. 



n.f. castancus : Length about 145 mm., thickness 6 mm.; 

 aa : ab : be : cd = 3:2:4: 3. 



CHILOTA PEIESTI, n. sp. f. TYPICUS. 



Loc. Avontuur, Uniondale division ; Mr. Priest, leg. 



External Characters. Length 200 mm., thickness 7-9 mm., 

 number of segments ca. 162. 



Head tanyloboiis. Segments of the fore body, with exception of 

 the first 4, divided each into two segment-like ringlets. 



Setae rather small, widely paired. In general aa : ab : be : cd : 



