360 Mr. R. I. Pocock on Chilopoda and Diiilopoda 



[Fontaria Holstn, sp. n. (PI. XL figs. 9, 9 a.) 



$ . — Colour olive-green, the middle of the dorsum slightly 

 paler, the borders of the keels and of the labrum, the distal 

 ends of the antennal segments, and the tarsi flavous. 



Body smooth and polished, very slightly wrinkled jast above 

 the keels; dorsum evenly arched from its summit to the edge 

 of the keel ; keels small, rising above the middle of the side, 

 directed slightly upwards and backwards, the posterior angle 

 spiniform ; the posterior border of the keels directed slightly 

 forwards in segments 1 to 6, and slightly backwards in 

 segments 14 to 19, the margin moderately thickened. Caudal 

 2)rocess triangular, apically truncate, and laterally bituber- 

 culate. 



Anal stermte semicircular, bituberculate. 



Legs with the spine slender, elongate, and acute. 



(^ . — Less robust, but with larger keels. 



Copulatory feet rather small, each dividing distally into an 

 anterior or upper and posterior or lower ramus ; the latter 

 pointed, strongly curved internally and furnished along its 

 inner edge with a series of long thickly-set hairs, the former 

 flattened antero-posteriorly and strongly curved when viewed 

 from the side, shorter than the other. 



Length of female 47 millim. ; width across keels 9*5, across 

 cylindrical part of segment 7. 



Length of male 47 millim. ; width across keels 9, across 

 cylindrical part of segment 6, 



Log. Great Loo-Choo [Hoist Coll.).] 



{^Fontaria neptunus, sp. n. (PI. XL fig. 10.) 



(J . — Colour pale yellow ; lower surface, antennae, and legs a 

 uniform pale colour j an olivaceous spot on the front of the 

 head and two connected by a transverse band on each segment, 

 the cylindrical part of each segment clouded above with yellow, 

 a central spot being darker. 



Copulatory feet resembling in construction those of the 

 preceding species ; the two rami, however, closer together, 

 and each of them is tridentate at the apex. 



Length 40 millim. ; width across keels 7*5, between 

 keels bb. 



Loc. Great Loo-Choo {Hoist Coll.). Several male 

 specimens. 



This species differs from the preceding in being slightly 

 smaller, differently coloured, and in having the copulatory 

 foot differently formed.] 



