I9I7-] J- Stephenson : Indian Oligochaeta. 399 



The female aperture seems to be situated just in front of the 

 line of the setae midventralh^ on segment xiv, on a small white 

 transversely oval papilla. 



The spermathecal papillae are two pairs, on segment viii, the 

 anterior pair midway between the setal ring and the anterior inter- 

 segmental furrow, the posterior just in front of the posterior fur- 

 row. Setae are absent from the midventral region of segment viii, 

 but displaced setae are found on all the spermathecal papillae. A 

 pair of small papillae are also present in segment ix, in or slightly 

 in front of the setal ring and in line with the spermathecal papillae ; 

 on these too displaced setae are seen. 



Internal anatomy. — The specimen was in poor condition inter- 

 nally ; it is however remarkably similar to the last species. The 

 septa, circulatory system, and nephridia require no comment. 

 The barrel-shaped gizzard is in segment vi ; of the four pairs of 

 calcareous glands those in segments xii and xiii are smaller than 

 in the preceding species. 



The testes and funnels are as before ; the two pairs of vesi- 

 culae seminales are yellowish, of fair size and slightly lobed. Each 

 of the prostatic ducts is extremely thin in its course from the end 

 of the glandular portion to its terminal swelling. The vasa defer- 

 entia pass by the outer side of the termination of the anterior duct 

 while still separate, then turn behind it, unite, and end. There 

 are small accessory glands in the neighbourhood of the prostatic 

 apertures, in front of and behind the termination of each of the 

 ducts. In addition, two large white cushions occupy the middle 

 line in positions corresponding to the external depressions. 



The ampulla of the spermatheca is of a longer or shorter ovoid 

 form, narrowing below where its outline is more irregular On 

 this lower narrower part are situated two, three or four seminal 

 chambers, of moderate size, sessile, white and shining. Below this 

 the sac is continued into the duct, narrow and almost wholly within 

 the body- wall. There are a number of accessory glands, of the 

 former type, in the neighbourhood of the spermathecae. The 

 whole is very like the organs in H. kempi (fig. 16). 



Hoplochactella affinis, sp. nov. 

 (PI. xvii, figs. 19, 20). 



\V. 1 28/1. Mormugao Bay, Portuguese India (Donna Paula Bay and 



vicinity) ; shore collecting. August, 1916. S. Kemp. Six specimens. 

 W. 125/1. Mormugao Bay, Portuguese India (Vareeg Islet, S. side of 



Mormugao Ba^•) ; shore collecting, under stones. August, 1916. S. 



Kemp. Two specimens, one damaged. 

 W. 127 I. Mormugao Bay, Portuguese India (small bay on S. W. side 



of Mormugao Head) ; shore collecting. September, 1916. S. Kemp. 



Two specimens, in rather poor condition internally. 



The description is based on the first batch of specimens, which 

 are to be considered as the types. The other batches differ 

 slightly from the first, and are referred to subsequently. 



