302 Records of the Indian Museum. [MOK eae 
and the number in a bundle does not exceed three; but I could 
not be certain of any other constant distinction. 
The dorsal setae begin in segment vi, and the bundles consist 
of one hair-seta and one needle. The hairs are equal to the diame- 
ter of the body in length, that is about 2504, and taper finely 
towards the tip; none are specially lengthened, the one on segment 
vi being in fact rather shorter than that of vii. The needles are 
straight or perhaps slightly curved at the tip (this last character 
was only noted in a potash preparation), which is simple; they 
taper to a point distally, and in length are from 50 to nearly 
6or. 
The bodywall contains pigment grains. 
Chloragogen cells begin in segment vi; there was a stomachal 
dilatation in vii in one specimen, but none in another. 
The sensory papillae characteristic of S. appendiculata are 
present. They are flat-topped, of some considerable height, often 
higher than broad, truncated or cylindrical. They are segmentally 
arranged, several in each segment rather behind its middle, often 
about at the level of the setal bundles. 
Remarks.—If{ I could be certain that no specially elongated 
setae had dropped out from segment vi, this would be an extreme- 
ly well-defined species (I say ‘dropped out’ because so far as I 
could see there were no broken stumps on segment vi). It would, 
I think, be necessary to enlarge the scope of the genus Slavina, 
defining it by the sensory papillae and covering of foreign par- 
ticles, without reference to the elongated dorsal setae of vi. The 
papillae and the foreign particles are such peculiar characters that 
I cannot doubt the close relationship of this form to S. appendt- 
culata ; and it would be pedantry to remove it to another genus 
(e.g. Nazis) or to form a separate genus for its reception, merely 
because of the absence of specially long setae in a particular 
segment. 
Whether such setae have fallen out or not, I think these 
specimens are specifically distinct from S. appendiculata. Eyespots, 
which are absent here, are present in S. appendiculata, as a rule, 
at any rate, though perhaps not constantly [‘‘Augenflecke meist 
vorhanden”’ Michaelsen, 13; ‘‘ meist mit 2 Augen,”’ Michaelsen (1) ; 
though Piguet (I9) apparently allows noexception]. Is it not pos- 
sible that where eyespots are not present in S. appendiculata it is 
because the individual—on this supposition the former posterior 
component of a chain—has separated before complete differentia- 
tion of the head region ? 
The stomachal dilatation, here in vii, is in viii in S. appendi- 
culata according to Piguet, and it is in viii also in the specimens 
which I previously distinguished as S. punjabensts (20), but which 
Michaelsen (15) thinks are to beincluded under S. appendiculata. 
The point of the dorsal needles is expanded at the tip in S. appen- 
diculata (Piguet, 17). 
I think Michaelsen’s statement (13) that the nodulus is distal 
in the ventral setae of S. appendiculata is probably a slip. 
