1916. | J. STEPHENSON : Indian Oligochaeta. 45 
ae) 
were seen to present low lamellar transverse folds projecting into 
the lumen from the ventral wall, the dorsal half of the wall being 
almost or quite smooth, and in the two kinder segments (xii and 
xiii) slightly constricted off from the ventral by a lateral fold. 
Along all four segments there is a large and very conspicuous 
longitudinal midventral projection into the lumen; in a transverse 
section this would appear bilobed, spreading out on each side of a 
narrow median attachment, as if it were a ventrally situated 
typhlosole. The annular intersegmental constrictions of the oeso- 
phagus are thickened, as seen from the inside, and present a num- 
ber of nodular projections. 
The nephridia have a similar interest. In the anterior seg- 
ments these are present as villous tufts, or as an aggregate of three 
or four coils, within the cone-like septa. On passing back, larger 
nephridia soon make their appearance, more laterally placed in 
the segment; the first of these occurs in segment xiii, and is not 
of any considerable size. From here onwards the more ventral 
nephridia, covered by the intestine in the normal condition, appear 
as two compact coils; the dorsal nephridia, of considerable size 
behind the prostate, are thin and flat, and occupy the lateral third 
of the bodywall on each side; there are also a few smaller coils 
near the middorsal line (? normally one per segment). 
In the posterior third of the body, about 30 to 40 segments 
from the hinder end, there are two considerable nephridia on each 
side per segment; the dorsal of the two seems to be usually the 
longer, the ventral the more bushy; there is also on the bodywall 
a fur of very minute micronephridia. Between the thirtieth and 
twentieth segment from the end these minute nephridia become 
fewer, and after the twentieth they have almost gone. The dorsal 
nephridium has become relatively smaller, and the ventral larger ; 
the latter is now a stoutish tube which forms only one or a 
few twisted loops; its calibre is much greater than that of the 
dorsal nephridium. The smaller nephridia could not be distin- 
guished. 
I succeeded in finding a funnel on one of these stout ventral 
nephridia (from the twenty-second segment, counting from the 
posterior end); it was formed of a rosette of cells, all the same 
size, evenly surrounding a small circular aperture; a narrow but 
quite short portion of the tube succeeds, which soon widens to form 
the stout tube of which nearly the whole nephridium consists. I 
did not find funnels in the nephridia from the region behind the 
clitellum. 
Eudichogaster sp. 
From base of leaves of tall palm tree, Museum compound, Calcutta, 
28-vil-1909._ A single specimen. 
The condition of the worm did not permit of a satisfactory 
examination, and mention is made of it only because of its peculiar 
habitat. 
