igiyj J- Stephenson : Indian Oligochaeta. 403 



species, which were kindly sent for re-examinatioii and comparison 

 with the example now obtained, by the Director of the Zoological 

 Survey. This is the more necessary as owing to a regrettable acci- 

 dent in the post, the tube containing the specimens was broken on 

 the return journey, and the types are now practically valueless. 



The specimen which I previously {19) took as the basis of my 

 description, with the well-marked papillae on segment xviii, has 

 spermathecae and spermathecal diverticula as shown in the figure 

 (19, fig. 8) ; the diverticula are numerous and in two groups, the 

 individual chambers being very fairly independent of each other. 

 The " accessory spermathecae", as I called them in my previous 

 account, are not hollow sacs, but stalked glands similar to those 

 in the various species of Hoplochaetella described in the present 

 paper. The manner of opening of the spermathecae is correctly 

 described ; externally there appears a slight whitening in the setal 

 line of segment viii at two places, one on each side of the middle 

 line, the interval between them being about equal to that between 

 the male apertures. The prostates are in the form of a series of 

 loops. There is, as stated, no heart in segment xiii ; but in xiv 

 there is a vascular commissure similar to that described in Hoplo- 

 chaetella {cf. p. 390 ant.). 



In the other dissected specimen there is only one accessory 

 spermathecal gland on each side (as against two and three in the 

 type). The anterior pair of spermathecae cannot be followed so 

 far back as in the former specimen, and the duct really seems to 

 pierce the body-wall in front of the groove 7/8 ; the posterior pair 

 as before pierce the body-wall at the level of the setal ring in viii. 

 The ampulla of the spermatheca is irregular in shape ; the duct is 

 about as long as the ampulla, broad at its origin, still further 

 swollen at the level of origin of the diverticula, and contracting 

 considerably towards the external aperture. The diverticula are 

 about ten in number, arranged more or less distinctly in two groups 

 of about five each ; though distinct enough, the separate diverti- 

 cula are not stalked (they might almost be called stalked in the 

 previous specimen)^ and rather resemble the chambers which so 

 commonly surround, more or less completely, the base of the am- 

 pulla in species of the genus Eu'yphoeus. The ectal portion of the 

 duct is distinctly muscular. The gizzard is barrel-shaped. There 

 is no heart in segment xiii, but the commissural vessel is present 

 in xiv, as in the previous example. Externally, the male aper- 

 tures are further apart than in the type specimen, — about a quar- 

 ter of the circumference instead of one-seventh. In the spermathe- 

 cal region there are slight papillae which seem to correspond to 

 the apertures ; these are (i) in the setal ring of segment viii, about 

 at the situation of setae e on each side and (ii) just in front of 

 groove j/^, in line with the same setae ; these correspond to the 

 sites at which the ducts of the spermathecae seem to pierce the 

 parietes as seen from the inside There is a fifth papilla in this re- 

 gion, also in the setal ring of segment viii, at the site of seta b on 

 the left side. 



