REPORT UPON TWO COLLECTIONS OF MYRIOPODJ. 147 



This species has not yet been recorded from Ceylon. It appears, 

 however, to be tolerably widely distributed in Southern India. The 

 British Museum has examples from Bombay and Madras ; and in 

 addition to further examples from Madras, Mr. Thurston has sent 

 others from the Nilghiri Hills. 



Order, Helminthomorpha. 

 Family, Polydesmidce. 

 Leji todesmus inornatus, ( Humbert ) . 

 Loc. cit. pp. 30, 31, pi. iii, fig. 11. 



This species was recorded originally from Peradenia. Mr. Green 

 brought one example from Punduloya. This specimen is concolorous 

 and pale coloured, thus differing markedly from the L. tanjoricus 

 described below. 



Leplodesmus thwaitesii, (Humbert). 

 Loc. cit., pp. 27, 28, pi. ii, fig. 9. 



This beautiful species was also recorded in the first instance from 

 Peradenia ; Mr. Grreen obtained several examples at Punduloya. It is 

 a very marked form. The keels are well-developed and like the 

 posterior half of the segment are nearly white, while the anterior 

 half is chocolate-brown with white spots. 



Leptodesmus tanjoricus, sp. n. 

 (PI. i, figs. 3, 3a, 3b.) 



Colour, upper surface deep chocolate-brown, almost black, the 

 under surface, the labral region of head, the antennae and legs pale 

 brown, the keels of all the segments and the caudal process pale 

 yellow ; polished. 



Bodi/ nearly parallel- sided ; somewhat slender, lightly convex 

 between the keels. First tergite much wider than head with lightly 

 convex anterior border, the posterior border nearly straight and run- 

 ning obliquely outwards, forwards, and downwards, the border with 

 raised margins, the keels of the 1st, 2nd, 3rd and 4th tergites nearly 

 in a straight line, sloping backwards and upwards to the 5th ; keel of 

 the 2nd well developed and a little depressed, with anterior border 

 and angles lightly convex, squared posteriorly ; 3rd and 4th with 

 keels horizontal and directed backwards ; the rest of the segments 

 with the keels horizontal and not elevated, not long, the posterior 



