THE OLIGOOH^TA OF NATAL AND ZULULAND. 447 



placed medially to the normal one, and was smaller than 

 the latter. The spermathecee are of a stunted pear-shape, 

 shortly and narrowly stalked, and their contents give to them 

 a glittering appearance. 



Sexual setfe : the ventral setae of segments 13, 14, 16 18 

 and 22-28 or 23-27 are enlarged and transformed into sexual 

 setfe. They are only slightly bent at the distal extremity, and 

 are more or less flattened laterally like a sabre. The maximum 

 dimensions are : length 0"96 mm., breadth 30 fx; and another 

 example, length 0"78 mm., breadth 60 fi. The distal end of 

 the sexual setfe is ornamented in a very characteristic manner, 

 being covered with deep scars or cicatrices ii-regularly dis- 

 tributed or partly joined into small transverse groups. The 

 proximal border of the scars is sharply marked, and is 

 rounded or straight ; they lie parallel to each other and to 

 the border of the seta. The scars are as long as broad, or 

 longer than broad; they flatten out and disappear distally. 



Setal glands : a sexual seta is accompanied by two or 

 three setal glands which project freely into the body-cavity. 

 Generally these glands are bluntly pear-shaped, firm and 

 opaque. The glands in segments 16-18 diifer a little from 

 the others in that they are mostly much longer, being club- 

 shaped and about four times as long as broad ; they are also 

 not quite so firm and they are semi-translucent. 



Remarks. — M. parvus is allied to M. modestus Mich., 

 and it diifers mainly in the arrangement of the seta?, of the 

 tubercula pubertatis, and of the cushions of the sexual setae, 

 as well as in the thickening of certain septa. 



Mi croch fetus beddardi Benham. 



Microchseta beddardi Benham, " Studies on Earthworms II." Quart. 

 Journ. Micr. Sci., (n. s.) xxvi, p. 78, pi. viii, figs. 1-S, 10, 1886. 



Microchseta beddardi Benh.; Benham, "Description of Three New- 

 Species of Earthworms," Proc. Zool. Soc. Lond.. 1892, p. 142. pi. 

 viii, fig. 8. 



Hab. — Natal (teste Benham). 



I have had no opportunity of examining this species. 



