220 Memoirs of the Indian Museum. [Vol. VII, 



colour. Those in xii are large and tabulated, and meet but do not fuse with each 

 other dorsally ; the vesicle on the right side in segment ix was moderately large, but 

 that on the left was small (? had been in part detached and washed away). 



The prostates occupy more than one segment, — xviii and part of xvii on the 

 right side, xviii and part of xix on the left ; they are somewhat loosely tabulated. 

 The duct is short, narrow and rather soft ; it is covered over by the lobules of the 

 gland, and is not visible till these are separated. 



The ovaries, relatively very large, and funnels are in segment xiii. In segment 

 xiv are conspicuous ovisacs, containing large ova. 



The spermathecae are of moderate size, in segments viii and ix. The ampulla 

 is rounded, and rather flattened between successive septa. The duct is of about the 

 same length as the ampulla ; at its ental end, between the two diverticula, it is 

 rather narrow, but becomes thicker below them (fig. 23). The diverticula are small, 

 subspherical, and attached to the ental end of the duct by short stalks ; they have 

 rather a cauliflower-like appearance, but this is not due to any lobulation, — it seems 

 to be occasioned by wisps of iridescent spermatozoa shining through the wall. 



There are no penial setae. 



Perionyx igatpuriensis, sp. no v. 

 Plate X, fig. 24. 



Igatpuri, Bombay Pres. 29-vi-1917 B. Prashad. Three specimens, one consisting of only 

 the anterior end. 



Elephanta Island. Bombay ; on the sea-shore. 30-vi-1917. B. Prashad. Three specimens. 



External Characters : — Length 40-52 mm. ; diameter 2-2*5 mm. Colour dark, 

 purple dorsally, pale ventrally ; clitellum slightly lighter dorsally than the rest of 

 the dorsal surface. Segments 150-170. 



Prostomium epilobous \, tongue broad, cut off behind. 



Dorsal pores begin from groove 4/5. 



The setal rings are unbroken dorsally ; the ventral break is small and irregular, 

 or altogether absent. The setae are closer set ventrally than dorsally. The following 

 numbers were counted : — v/36, ix/48, xii/46, xix/41, and in the middle of the body 44 

 (in the specimen examined from the Bombay material the numbers were somewhat 

 greater in the anterior segments). 



The clitellum extends over xiii-xvii (only to xvi in Bombay specimen) (=4 or 5); 

 setae are present, and the intersegmental grooves can be distinguished. 



The male pores appear as depressions, each in the middle of a small circular area 

 with slightly raised lips, near the middle line in segment xviii ; these areas are sepa- 

 rated only by a groove in the mid-ventral line, and in length take up nearly the 

 whole segment. Black dots, which may be seen in the depressions, are the penial 

 setae. 



The female pore is represented by a whitish dot in a transversely oval depression 

 anteriorly on segment xiv. 



The spermathecal pores are two pairs, in grooves 7/8 and 8/9 ; they are conspicu- 



