368 Records of the Indian Museum. [Voi,. XIII, 



similarity to the former is increased by the absence of any other 

 widening at the termination of the spermathecal duct, and to the 

 latter by the coiled form of the prostate. It differs from both in 

 the number or in the position of the gizzards, as well as from D. 

 jalpaigurensis in the absence of genital markings. 



Drawida affinis, sp. nov. 



\V. 131/1. Rangamati, Chittagong Hill Tracts, Bengal, ii-vii-1915. 

 R. Hodgart. A single specimen. 



External characters. — Length 37 mm. ; maximum diameter 3 

 mm. Colour a uniform medium gray. Segments 107, with, in ad- 

 dition, a small zone of regeneration consisting of eight very small 

 segments ; all the segments are very narrow from front to back. 



The prostomium was small and could not be accurately ex- 

 amined, owing to its being withdrawn within the first segment. 



Dorsal pores are absent. 



The setae are closely paired ; there is a relatively narrow inter- 

 val between the ventral bundles, so that aa : Z)c : : 3 : 5, or 4 : 7. 

 The lateral bundles of setae are at the level of the lateral line of 

 the bod}^ {dd =^ half the circumference). 



The nephridiopores are in line with the setae cd. 



No clitellum was visible, nor are there any genital markings. 



The male apertures are in groove lo/ir, with their centres in 

 h ; they are inconspicuous and slit-like. 



The female pores were not visible. 



There was possibly a sHght indication of the spermathecal aper- 

 tures in grooves y /S slightly ventral to c. 



Internal anatomy. — Septa 5/6 to 8/9 are moderately thickened. 



The gizzards are three in number, in segments xiii-xv, with 

 softer annuli intervening. 



The last hearts are in segment ix ; they run freely, not being 

 connected to the septa by mesentery, as is usually the case. 



The testis-sacs are attached to septum 9/10, and are ovoid in 

 shape and contained wholly in segment x. The vas deferens is 

 narrow, and constitutes a coiled mass in x, on the posterior face of 

 septum 9/10. The prostate is tubular, and consists of several 

 closely applied coils or loops (more than in the last species) ; it is 

 rather shiny in appearance, and becomes progressively narrower 

 towards its ectal end ; the vas deferens joins it at a point above 

 (ental to) the middle of its length. 



The ovarian chamber, — segment xi, — is constituted as in the 

 last species ; the alimentary canal is excluded by means of a mem- 

 branous connection between septa lo/ii and 11/12 which arches 

 over the gut, but the septa are not united together dorsally near 

 their junction with the parietes. No ovaries or ovisacs were 

 visible. 



The spermathecae were small, empty and transparent; they 

 were flattened against septum 7/8, and approximately circular in 

 shape. A narrow coiled duct leads downwards. The atrium has 



