246 Records of the Indian Museum. [VoL. V, 1910.] 
the number of sete in a bundle,—not more than four in Beddard’s 
specimens, sometimes aS many as six in mine; (v) the position of 
the spermatophores,—not round the male generative pore, but on 
the dorsal and dorsolateral surfaces of the clitellar segments ; (vi) 
some histological differences in the male efferent apparatus. 
It may therefore seem hazardous to include these specimens 
in the same species with those formerly described. I do so how- 
ever for the following reasons :— 
(a) The species is already known to be a variable one. ‘This 
is illustrated by the variations in the position of the sensory 
depression on the head. It is also illustrated by the fact that in 
the single specimen recently examined by Michaelsen, which he 
had no difficulty in assigning to this species, the male aperture 
was on the xi, and the clitellum on the xi and xii segments ; and 
it is interesting to note that Michaelsen’s words, ‘‘I think this 
dislocation (7.e., the dislocation backwards of male organs and 
clitellum in Beddard’s specimens) an abnormity without system- 
atic importance,” are supported by the finding of both modes of 
disposition in the one batch of specimens examined by me. And 
further, the variable nature of this form comes out in the differ- 
ence in shape of the spermatophores as found by Beddard and 
Michaelsen respectively. 
(b) As noted above, the number of specimens at the disposal 
of previous investigators appears to have been small. It is there- 
fore not impossible that the examination of a larger number of 
individuals would have revealed variations similar to those re- 
corded in the present paper, which would have necessitated a 
widening of the specific diagnosis. 
(c) I have of course also been influenced by the fact that my 
specimens come from Kurseong,—the identical place from which 
those submitted to Prof. Michaelsen were taken. 
I have in conclusion to offer my thanks to Dr. Annandale for 
affording me the opportunity of examining this interesting form. 
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