ert TWO NEW -SPECTES OF 
SCOLOPENDRIDAE. 
By F. H. GRAvEty, M.Sc., Assistant Superintendent, 
Indian Museum. 
The Indian Museum collection of Scolopendridae has increased 
very rapidly since it was catalogued after being examined by 
Dr. Kraepelin two years ago (Rec. Ind. Mus., v, IgI0, pp. 161- 
166). In spite of this, very few additional.species have been 
added to it, and the new locality records for the most part only 
seem to show that our knowledge of the distribution of such 
species as are easily obtained is already complete. Such records 
as extend the known range of any species all happen to refer to 
species obtained by Mr. Kemp during the Abor Expedition, and 
have been incorporated in the special report on the zoological 
results of that expedition (Rec. Ind. Mus., vol. viii). Two out of 
the four undescribed species added to our collection since it was 
returned to us by Dr. Kraepelin were also obtained in the Abor 
Country, and have been described in the same report. In the 
present paper the two remaining species and one subspecies are 
dealt with. 
Subfamily OTOSTIGMINAE. 
Genus Rhysida. 
R. ceylonicus, n. sp. 
A single specimen was found under a stone in damp mud in 
the jungle on the hill above the experiment station at Peradeniya, 
Ceylon, at an altitude of about 2000 feet. Before it was finally 
caught it escaped into a small stream down which it swam with 
lateral undulating movements of the body, diving under the water 
to hide beneath stones that were partially immersed. This is the 
only centipede I have seen under such conditions, but whether or 
not it is normally amphibious I am unable to say. 
Description.—Length (excluding appendages) 57 mm. An- 
tennae 20-jointed, all the joints longer than broad, the distal ones 
from two to four times longer, the first two smooth and hairless 
throughout, the third with a ventral pilose patch distally, the 
rest pilose throughout. Dorsal surface somewhat slate-coloured, 
segments 4-19 with a pair of very short longitudinal grooves 
close to the posterior margin; no segments grooved more exten- 
sively than this except marginally ; ; more or less complete marginal 
grooves present from about the sixth or eighth segment, those on 
