1915.] J. STEPHENSON : Indian Oligochaeta. 75 
ate an almost exact counterpart of the appearances in the foregoing species. The 
number of circles of spines is perhaps rather greater (9-10), and the spines them- 
selves are apparently a little smaller and more numerous; but the similarity of the 
setae in the two species is very striking. 
Remarks.—This species happened to present itself for dissection almost immedi- 
ately after the foregoing; and I was naturally much struck by the great similarity of 
the penial setae. I was tempted to unite them in the same species, notwithstanding 
the wide distance between their respective habitats; and it may possibly still be true 
that they should be considered as varieties only of a single species. A more extended 
knowledge of Indian earthworms, which may result in the discovery of intermediate 
forms, may decide the matter. I made a complete dissection of two specimens and 
in addition examined the external characters of a third of the present batch, with the 
result that the differences between this form and the last may be said to consist in 
the much closer approximation of the spermathecal apertures in the present form, 
the position of the last heart in xiii instead of xii, the short narrow spermathecal 
duct, and the simple form of the male apertures. 
Genus LAMPITO. 
Lampito mauritii, Kinberg. 
Ennur, Madras, under bricks on sandy soil in garden; 20-1-1915 (N. Annandale). One large and 
five small specimens. 
Genus MEGASCOLEX. 
Megascolex nureliyensis, Mich. 
Horton Plains, 7000 ft., Ceylon; dug from earth; Dec., 1913 (S. W. Kemp). Three specimens. 
Same locality, under stones and logs; same date and collector. A single specimen 
A full description need not be given; but the following points may be of interest 
for comparison with the original description of the species. 
The mid-dorsal setal interval is irregular, —zz—2-3yz, and the intersetal distances 
are also irregular. Ventrally there is a difference in the setal relations between the 
preclitellar and postclitellar regions; in the former aa is slightly greater than ab,— 
up to 14a); behind the clitellum it is considerably greater,—aa=2-3ab. I could not 
confirm the details of the original description regarding the diminution of intersetal 
intervals and size of setae on passing outwards from the middle line; but the enlarge- 
ment of the ventral setae on a number of anterior segments appears to be a character 
worth mentioning; those of iii or iv to viii or ix are enlarged, while those of x may 
be noticeably small. 
The clitellum may be absent in fully sexual specimens; in any case it seems to 
be indefinite in extent,—perhaps xiii-xvii—5, and marked only by a more pro- 
nounced purple colour on the dorsal surface. 
The gizzard is in vi (in two specimens dissected). 
Testis-sacs enclose not only the testes and funnels, but the alimentary canal 
and hearts also, in segments x and xi. On opening the worm, a thin membrane is 
