400 Records of the Indian Museum. [Voiv. VII l, 



Prostomiiim epilobous, almost tanylobous, marked by a 

 longitudinal median groove running its whole length. The first 

 segment shows numerous longitudinal grooves; surrounding the 

 mouth opening are a number of papillae, from the intervals 

 between which the grooves on the first segment are continued 

 backwards; the grooves do not quite reach the furrow i (? some 

 part of the appearances due to commencing eversion of the 

 buccal cavity). 



The setal ring is unbroken ventrally, and almost unbroken 

 dorsally {zz = liyz). On v and vi, however, a much wider inter- 

 val exists mid-dorsally. The setae of the preclitellar segments 

 are larger than those behind the clitellum, especially than those 

 towards the posterior end On the clitellum can be seen faint 

 whitish lines indicating the position of the setal rings, but 

 these do not project as ridges, and are not to be distinguished 

 on the dorsal surface ; a few minute setae appear to be imbed- 

 ded in the clitellum ventrally in xiv, but I could not definitely 

 say that they were present on the other segments. Number 

 of setae: 22/vi, 44/ix, 47/xii 65/xxiii, 



CHtellum xiv--xvi=3; almost without setae, though show- 

 ing whitish lines ventrally in the situation where setal rings 

 would be (v. sup). The clitellar area is smooth, without a 

 trace of annulation. 



The first dorsal pore is in furrow 11, slit-like. There are 

 no pores on the -clitellum, though they are present on the 

 anterior and posterior limiting furrows. 



The male apertures are in the line of the setae of xviii. 

 They are situated in large conspicuous circular depressions ; these 

 depressions are surrounded anteriorly, posteriorly, and especially 

 externalJy by a prominent semicircular lip or ridge_, which 

 is absent on the inner side. Including the lips, the whole area 

 extends nearly over the interval between the setal ring of xvii 

 and that of xix. The apertures are distant from each other 

 about f of the circumference; 12 setae intervene. There are 

 no genital setae. 



The female aperture is single, in a shallow depression in 

 the line of the setae of xiv. I at first thought that the aperture 

 was paired, .since the specimen shows a second, rather smaller, 

 depression by the side of the first. But this second depression 

 lias no pore in its centre; and dissection confirms this. 



The spermathecal apertures are scarcely visible ; internal 

 examination shows that they are four pairs, in t, j, i and f>. 

 'lliose of the same pair are separated by an interval equal to f 

 the circumference. 



There are no other genital marks. 



The body-wall is very thin, except in a few of the anterior 

 segments. 



Septum ir is thickened, septa t and J; much thickened, ry and 

 ,n absent, tt and all succeeding septa are thin. 



