210 MR, ¥. EB. BEDDARD ON EARTHWORMS [Jan. 14, 
separating the two sete of the dorsal couple is about two and a 
halt times that separating the two sete of the ventral couple. 
The sete are all grouped on the ventral surface of the body, not 
extending far laterally. On the xviith, xviiith, and xixth segments 
the ventral sete appear to drop out in the sexually mature worms. 
In an immature specimen the xviiith segment had a pair of ventral 
sete in the usual position, but small in size; on the xviith and 
xixth segments were a pair of very small and quite immature 
sete. I did not detect any of these on the opposite side of the 
body. 
Benhamia indica, Nat. size. 
Dorsal pores were visible at the posterior end of the body, where 
the worm was less contracted. 
There are a series of genital papille in the region of the 
spermathece. A pair of large papille lie upon segment ix. ; 
through it protrude the sete of the segment, which differ from 
those of other segments of the body in being modified in structure. 
They are like those of many Geoscolecids in being rather longer 
than the ordinary sete, less curved in form, and in having the 
distal extremity ornamented with elegantly disposed semicircular 
ridges. Between this segment and the next, and again on the 
