1914-] J.Stephenson: OUgochaeta. 395 



The spermathecal apertures are two pairs, in grooves f and 

 i, near the lateral borders of the animal and distant from each 

 other about i of the circumference. They are conspicuous round 

 pits, each surrounded by a paler lip. 



No septa are notabh' thickened; the first is t. A number 

 of small brown particles, spherical in shape, were found attached 

 to the bod3^-wall and to the organs in the anterior part of the 

 body. On breaking one up it was found to consist of granular 

 yellow matter with an entire seta embedded in it ; they are thus 

 similar to the brown bodies found in the coelom in many Lum- 

 bricidae. 



The gizzard is verj^ rudimentary; it is situated in front of 

 septum y, and is hardly broader than the preceding part of the 

 oesophagus. The oesophagus is swollen and darker in colour 

 in segment ix, and its walls are here rather hard and brittle ; 

 internall}^ a number of ridges are seen, but no well-developed 

 lamellae. The intestine swells out in xvii. 



The last heart is in segment xii. 



The excretory system is meganephric ; the nephridia pierce 

 the body-wall in approximately the same longitudinal line. 



The testes, in segments x and xi, were in one of the two speci- 

 mens dissected comparatively very large and folded. The funnels 

 are in the same segments. 



The vesiculae seminales when fully developed are large white 

 masses occupying segments x, xi and xii ; all are continuous from 

 side to side dorsally over the alimentary canal. That in x is 

 not lobed, is free or at least easily separable from septum ti, 

 but is more intimately attached to to. That in xi is slightly 

 lobed, and is attached to septum tt. That in xii is the largest, 

 and is lobed ; it is attached to septum H, and, by bulging back 

 septum T3, it appears to occupy segment xiii also, and even 

 extends to the level of tJ. In a specimen at a younger stage 

 of maturity (the one in which the testes were notably large), 

 seminal vesicles were only present in xi and xii ; those in xi 

 were united to a single sac, as above, while those in xii were 

 still separate. 



The prostates are massive, rather rectangular blocks, not 

 much cut up into lobes, occupying segment xviii; they bulge 

 forwards septum H so as apparently to occupy xvii also. The 

 duct, on the under surface of the gland, is bent a few times 

 so as to have a sinuous course; 'it is broader towards its end. 

 The female organs have the usual situation. 



The spermathecae are ovoid sacs in segments vii and viii, 

 situated with their long axis transversely. They appear promi- 

 nently at the sides of the alimentary canal when the specimen 

 is opened ; they are without diverticulum, and th; short duct 

 is extremely wide. — a half or three quarters of th? diameter of 

 the ampulla itself. The sac has a transparent appearance, due 

 to its containing a hard ovoid yellowish glassy mass, which under 

 the microscope shows no structure. 



