54 Journal of the Asiatic Society of Bengal. [{January, 1913. 
between lines of setae 6 and c: where the pore is on xv, the 
papilla takes up the whole length of xv and xvi, and quite half 
of xiv. 
(In what follows, the description will assume that the male 
aperture is on xv. 
e female apertures are*situated in obliquely running 
cracks which bound the male papillae anteriorly and internally, 
these apertures are in line with setae a. 
A ‘ genital area’ may be described as follows: the fissures 
t 
xvii, or even partially on to xviii, between and behind the 
male papillae. 
On a certain number of segments behind the male apertures 
the setae of series a are implanted in small circular papillae ; 
this may be the case in xvii, Xvili, xix, xx and xxi, but the 
oe of the papillae may not be the same on the two 
sides. 
' The clitellum is very indistinct, and seems to vary ; it 
seems to begin anteriorly about xxi-~xxiy (once about xv), and 
to extend posteriorly to xxxvi or xxxvii. 
the long axis of the oval was parallel to the surface of the body, 
prostates in Ovary, funnel, and ovisac were all prominent 
structures in the normal situations. There were no sperma- 
t 
What were probably large sporozoan it ben ihaaen 
those described by Benham (Q 5 M.S., eae es, simila 
