(jG Mr. C. E. Narayan Rao on soiue 



both sides perhaps representing rudimentary sperinathecal 

 structures. 



Type-speeimen in the British Museum. 



Syntypes in tlie Hamburg and Indian Museums. 



Locality. — Sandy banks of the Harangi, Madapur (Coorg), 

 and of the Cauvery, Dubari forests, Fraserpett (Coorg). 



ijlyphidrihis safjfronensis, sp. n. 



External cliaracters. — Average length of three longest 

 specimens 135 mm. ; niaximnm thickness 5 mm., which is 

 fairly the thickness throughout, except the posterior one- 

 eighth, which gradually tapers towards the anus. Average 

 number of segments 298. Segments in the middle of body 

 about one-third the width of segments 6-12, and those imme- 

 diately in front of the anus about half the width of former. 



Anteriorly the body is round, behind it becomes four- 

 cornered with feebly lateral canals, the dorsal and ventral 

 ones, however, are strongly marked. Secondary annular 

 ridges may be wanting or may be limited to the occurrence 

 of one on each segment, mainly anteriorly, 



Prostomium large, zygolobous. In tlie preserved speci- 

 mens the anterior dorsal wall of the pharynx may project 

 beyond the mouth. No dorsal pores. Anus, a dorsal 

 longitudinal slit, wider at the terminal part with tumid lips. 



The seta-distance in front of segment 12 «a=H, a/< = l, 

 lc = \\, cd=\y c?cZ=]^; in the middle of body aa = 2, 

 ab = '75, J)C=}^, cd='75, dd = 2; in the terminal modified 

 portion of body aa = l, ab = 'bO, he ='75, cd=50, dd=l. 



No trace of clitellum, all the numerous exaujples in the 

 collection being sexually mature ; puberty-tubercles and 

 clitellar wing absent. 



Nephridial pores, in the intersegmental furrows, nearer 

 to seta-line c throughout the length of body from seg- 

 ment 18. 



Spermathecal apertures made out with difficulty in the 

 intersegmental furrows 13/14— lG/17 nearer to seta-line b. 

 Sometimes only one orifice, that of 13/14 may be present. 

 IMale aperture on the intersegmental furrow 27/28 in the 

 seta-space ah ; female opening not discoverable. 



Colour. — In the living condition the whole body is a 

 vivid lemon-yellow, with reddish and whitish patches on the 

 anterior somites. The terminal modified portion of body 

 white. Dorsal and ventral dark bands. In the preserved 

 specimens the colour is either a pale yellow or grey. 



hiternal organisation. — The first recognisable septum is 

 4/5, "which and the succeeding two arc strongly muscular. 



