NEW SPECIES OF OCNERODRILUS. 247 



or one-fourth as wide as this organ in any of the other 

 species and very characteristic in appearance (figs. 65 

 and 66). At the apex of the male papilla there is a small 

 gland without any visible lumen. 



The ovary is situated in somite xiii, as is generally the 

 case in Oligochaetge. It is attached to the anterior septum. 

 The disposition of the ova is the general one, the larger 

 ones being on and towards the outside and upper margins 

 of the o\;ary with the smallest ones further in. The 

 ovary is pressed close to the parietes of body. 



The oviduct consists of one pair of trumpet-shaped 

 organs in somite xiv, one for each ovary. The ovipore 

 is situated in this somite, opening outwardly in front of 

 the inner set^. The interior funnel opens into somite 

 xiii, in close proximity to the ovary, and is engaged in 

 the septum between somite xiii and xiv. It offers no 

 great peculiarities in its structure, but is more rounded 

 than in Ocnerodrilus occidentalis (fig. 17). 



The spermatheccv (fig. i, 27, 28, 29) consist of one 

 pair of flask or club-like bodies, situated in somite ix, 

 opening externally behind the anterior septum in the in- 

 tersegmental groove between that septum and the viii. 

 The shape is flask or club-like, thickest at the inner free 

 end, gradually tapering towards the spermathecal pore. 

 It is narrowed at the middle and furnished with a varying 

 number of diverticula, from two to six. These diverticula 

 are short, of various length, but never as long as the 

 width of the spermatheca at the point of attachment. 

 The smallest ones are wartlike. They are mostly situated 

 at the upper broader end of the organ, and rarely more 

 than one is found further down. In the diverticula the 

 spermatozoa are seen massed. The inner lining of the 

 spermatheca consists of tubular cells, which in cross- 

 section appear circular, with large round nuclei. The 



2d Ser., Vol. III. ( 19 ) January 19, 1893. 



