382 Records of the Indian Museum. [Vol. XIII, 



The male apertures are on segment xviii, in line with g or the 

 interval ^h ; they are wide apart, this interval representing: a dis- 

 tance equal about to a quarter of the circumference ; the pores are 

 slightly behind the line of the setae, and are prolonged inwards to- 

 wards the middle line by slight grooves. Surrounding each aper- 

 ture is a whitish oval opaque thickened patch, which is itself sur- 

 rounded by a more translucent lip ; the aperture is situated excen- 

 trically in the oval patch, between the centre and the outer margin. 

 The whole takes up the entire ventral surface of segment xviii, the 

 lip on each side forming a prominence at the lateral margin of the 

 ventral surface of the animal (fig. 10). There are no setae between 

 the male apertures. 



The female aperture was not actually visible, but was indi- 

 cated by a very slightly paler transversely oval patch taking up 

 the space between furrow 13/14 and the setal ring of xiv. 



The spermathecal apertures are large and patent, widely apart 

 (not quite one-third of the circumference) and near the lateral 

 margin of the ventral surface, in furrows 6/7 and jj^ ; they are 

 bounded by distinct lips, and a gelatinous matter was protruding 

 from them. 



Internal anatomy. — No septa are notably thickened ; 8/9 and 

 9/10 seemed slightly strengthened, and perhaps 7/8 and lo/ii 

 very slightly so. 



A rudimentary gizzard is situated in segment v, the outline of 

 the thickening of the oesophageal wall being somewhat Y-shaped, 

 the posterior portion is narrower, and the wall between the limbs 

 of the Y is soft. The oesophagus is bulged in segment ix, with 

 marked transverse striations (vascular channels). The intestine 

 begins in xix. 



The last heart is in segment xii. 



Testes and funnels are free in segments x and xi (testes not 

 certainly identified in xi ; the funnels are conspicuous through the 

 adherent iridescent spermatozoa). Segment x is filled with coagu- 

 lum, as in the last species. The vesiculae seminales, large loose 

 flocculent masses with only slightly indented margins, take up the 

 whole length of segments xi and xii ; those on xi fuse dorsally over 

 the gut, while those in xii meet but are apparently still separable. 



The prostates take up part of segment xvii and all of xviii and 

 xix, and are indented by the septa. The duct is thin, soft, not 

 muscular, of the same diameter throughout, and bent once on itself, 

 the convexity of the loop being forwards ; there is no modification 

 of the body- wall where the duct joins it. No penial setal sacs 

 were seen. 



Ovaries and funnels were present in segment xiii. 



The spermathecae are two pairs, in segments vii and viii ; 

 they are very simple in form, — roughly pear-shaped with a thick 

 stalk. The ampulla is of some size, and fills out the whole length 

 of the segment ; each was, in the present specimen, full of a 

 coagulated yellow gelatinous material. The duct is broad and short, 

 — half as broad and a quarter as long as the ampulla, from which 



