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



Remarks : — The two species of Draiuida to which the present specimens bear most 

 resemblance are D. bournei (Mchlsn.) and D. barwelli (Bedd.). From the first the pre- 

 sent form differs (besides a few minor details) in the shape of the testis saGS (not a 

 great matter, since this is variable in these specimens), in its much smaller size, and 

 especially in the fact that the surface of the prostates is " glandular." From the 

 second, it differs in a few details such as the number and situation of the gizzards 

 (points which are however very variable), the relative magnitude of the setal inter- 

 vals, and the shape of the prostates (pear-shaped in D. barwelli, almost circular, flat 

 and sessile in the present form) ; the chief difference however is the absence of dorsal 

 pores here, — a character which the varietal name is intended to indicate. Most of 

 the species of Draiuida have no dorsal pores ; the type form of D. barwelli, however, is 

 peculiar in possessing them. I have rejected the alliance of the present form with 

 D. bournei (itself, according to Michaelsen, 4, a variety of D. pellucidus), because the 

 smooth and shiny, or soft and furry, condition of the surface of the prostate is appa- 

 rently a distinction of some importance (cf. Michaelsen, in the paper just quoted). 



The diagnosis of the present variety ma}^ run as follows : Drawida banvelli 

 var. impertusus : — as for the typical form, with the following exceptions. Setal in- 

 terval aa rather less than be, except at the hinder end. Male pores bounded by very 

 prominent anterior and posterior lips ; a pair of indefinite but fairly large whitish 

 papillae on the segment in front of the male pores. No dorsal pores. Four gizzards, 

 in xiv — xvii. Prostates flat, sessile, almost circular. 



Fam. MEGASCOLECLDAE. 



Subfam. MEGASCOLECINAE. 



Genus Pontodrilus. 



Elephanta Island, Bombay ; on the sea-shore. 30-vi-1917. B. Prashad. A single specimen, 

 not fully mature. 



The species was presumably the one which has been found on several parts of 



the coast of India, P. bermudensis, Bedd. f. ephippiger (Rosa). 



Genus Megascolides. 



Megascolides prashadi, sp. nov. 



Plate IX, figs. 5, 6. 



» 



Sakanvari, on the way to Mahableshwar, W. India 4-vii-1917. B. Prashad. A single 

 specimen. 



External Characters : — Length 42 mm., diameter 4 mm. The worm is unpigment- 

 ed, of a buff colour, which is lighter at the ends of the body and in the clitellar region. 

 Segments 140 ; the last 60 however are very short and lighter in colour, and have 

 perhaps been regenerated. 



The prostomium is prolobous. 



The dorsal pores begin at the anterior border of the clitellum, in groove 12/13. 



The setae are paired. In the middle of the body the relative size of the intervals 

 may be expressed by the formula ab = ^aa = %bc = \cd; behind the clitellum 



