1915.] J. STEPHENSON : Indian Oligochaeta. 69 
and situated on the septa, so that in dissection they appear as a ring round the 
intestine at the position of each septum. The posterior end of the specimen (not the 
posterior end of the animal, which was lost) showed micronephridia only; a regular 
row of small tufts occupied the line ab, and these constituted the ventralmost tufts 
in each segment; the rest, irregularly arranged, are seated mostly on the parietes, a 
certain number however being connected with the septa. 
Testes and funnels are small, and free in segments x and xi. The seminal vesi- 
cles are small, in xi and xii, on the anterior wall of the segment. They consist each 
of a double row of grape-like lobes; in other words, the attachment of each vesicle 
to the septum is linear, and on each side of this axis is a row of grape-like lobes; the 
whole is flattened against the septum. 
The prostates are tubular, small and narrow, consisting of a few windings only. 
Each begins in xix; the terminal portion, in xviii, is straighter, slightly shiny, and 
runs inwards to the male aperture; though it must be called the duct, it is not nar- 
rower than the rest, and does not differ much in appearance. 
The ovary was identified in xiii, but not the funnel. 
The spermathecae are two pairs; they are quite small, near the middle line, are 
simple cylindrical or finger-like sacs,—perhaps very slightly wider at their inner end. 
There is no diverticulum or duct. 
The penial setae (fig. 12) are in length from end to end neglecting any curves, 
57 mm., and in thickness 214 The shaft is curved in various degrees. The free 
end is bayonet-shaped, the tip flattened and markedly hollowed, the edge apparently 
semicircular, thin and sharp. A few small irregularities or indentations may be seen 
on one or both margins near the distal end. 
Genus COMARODRILUS, gen. nov. 
Comarodrilus gravelyi, sp. nov. 
(Plate VII, fig. 13.) 
Trichur, 0-300 ft., Cochin State; 1—4-x-1914 (F. H. Gravely). A single specimen. 
External characters.—Length 92 mm.; diameter (average) I mm., max. 1:25 mm., 
a long thin worm, constricted at the clitellum. Colour grey, no notable difference 
between dorsal and ventral surfaces, clitellum light brown. Segments 135. 
Prostomium indistinguishable. 
First dorsal pore in groove 6/7. 
The ventral setae are arranged in pairs, but not the lateral 
setae. In front of the clitellum aa=approximately 2ab, while 
c is about and d much above the lateral line of the body; 
bc—=2-24 ab, and cd is greater than bc; the interdorsal distance 
is a little greater than the interlateral (dd > cd.) In the FR OA 
middle and posterior parts of the body the setae d are much drilus gravelyi; ideal trans- 
closer together, indeed not far from the mid-dorsal line, and Ye'se Section, to show 
: 3 setal distribution in pre- 
dd is obviously less than cd. clitellar region. 
