1915.] J. STEPHENSON : Indian Oligochaeta. 53 
Drawida parambikulamana, sp. nov. 
Parambikulam, 1700-3200 ft. Cochin State; 16—24-ix-1914 (F. H. Gravely). A single specimen. 
External characters. Length 84 mm., diameter 34 mm., colour a bluish grey, 
darker on dorsal, lighter on ventral surface and laterally. Thebody-wallin the lateral 
region on each side appears rather thickened (c/. D. ghatensis, ant.) The situation of 
the ventral setal bundles is marked on each side by a dark line extending the whole 
length of the ventral surface (due probably to the interruption along this line of the 
continuity of the longitudinal muscular coat); there is a similar dark line in the 
situation of the lateral bundles in the posterior half of the body, though this lateral 
dark line is less marked than the ventral. 
Segments I4o. Prostomium indistinguishable. 
The setae are small and closely paired; aa—bc; dd is approximately equal to half 
the circumference of the body,—perhaps a little more, but not as much as #. The 
lateral bundles are situated a little below the middle in height of the thickened lateral 
region of each segment. The setae are less closely paired in the anterior region of 
the body, where (segment vii) aa=5ab, while further back aa=7ab. 
A considerable number of nephridiopores are lateral in position, a few however 
ventral. 
No clitellum was distinguishable. 
The male apertures are on minute papillae in furrow 10/11 outside the line b, 
but nearer b than c. The female apertures were perhaps represented by a pair of 
minute pale spots in furrow 11/12, in the line 5. The spermathecal apertures are in 
7/8, small, and their centre in the line c. 
Internal anatomy.—Septum 4/5 is perhaps represented by a sheet of a muscle 
directed rather backwards from its insertion round the alimentary canal towards the 
body-wall, which it joins a little in front of the level of furrow 5/6; being thus 
concave backwards it may not be homologous with a septum, the septa being usually 
in the anterior part of the body concave forwards. Septum 5/6 is attached to the body- 
wall rather behind the level of the corresponding groove; it and subsequent septa up 
to 8/9 are considerably thickened; the rest are thin. 
There are three gizzards, in segments xiii—xv, that in xiii being smaller than 
the other two. The last heart is in ix. 
The testis-sacs are on septum 9/10, projecting backwards into segment x, and only 
slightly (right side) or not at all (left side) forwards into ix. A sac was opened, but 
the contents were so intimately adherent to the wall that testis and funnel could not 
be recognized ; part of the adherent mass itself was presumably testis. 
In segment ix, ventral to the level of attachment of the testis-sac, and sessile on 
the anterior face of the septum 9/10, is a white mass with a delicately mammillated 
surface. On teasing out and examining microscopically this proves to be the ex- 
tremely fine and tightly coiled vas deferens. The tube has in this part of its course a 
diameter of ‘04 mm.; it is broader and easily visible under the dissecting binocular in 
its terminal portion, before it joins the prostate. In this specimen the duct was full 
