444 Mr. R. I. Pocock on new 
Pores dorsal, close to the border, rather less than a diameter 
from the edge. 
Caudal process semicircular, with sinuate border. 
Sterna nearly smooth, sparsely granular in front and behind. 
Hairs on legs normal, setiform. 
Measurements in millimetres.—Total length 62; width of 
second segment 8°3, of fifth 9:8. 
3g .—F latter and smoother than female, with keels larger 
and rather strongly bidentate, the lateral border from the 
fifth to the eighteenth being: angularly emarginate, with 
sometimes minor denticulations. 
Copulatory feet as in fig. 17, the anterior lower branch 
curving inwards, then abruptly downwards and backwards. 
Measurements in millimetres.—Total length 55; width of 
second segment 8, of fifth 9. 
Loc. Solomon Islands (C. MM. Woodford). 
Diodontodesmus verrucosus, sp. un. (Fig. 18, p. 441.) 
6 .—Differing from the preceding species in being a 
uniform blackish tint throughout, in having the keels perfectly 
horizontal, the rows of tubercles much coarser, the two ante- 
rior rows extending right on to the keels and almost to the 
emargination, the three rows being very strong even on the 
first three segments ; pores smaller and a little more lateral ; 
caudal process with conspicuous lateral tubercles and a more 
transverse posterior border. Legs thinner, longer, and studded 
with clavate hairs. 
Copulatory feet with a stout angular prominence at the 
base of the lower (posterior) prong; the prongs themselves 
longer than in Woodfordt. 
Measurements in millimetres.—Total length 55; width of 
second segment 9, of fifth 9°6. 
Loe. Solomon Islands (C. MW. Woodford). 
The species may be recognized as follows :— 
a. Lateral margins of segments almost entire, at most 
sintous (the restrastunderia®)) awsome set ecme sot Woodfordi, 2. 
b, Lateral margins of segments strongly and angularly 
emarginate, so as to be bidentate (3). 
a', Anterior rows of tubercles on dorsum of segment 
very weak, obliterated on the anterior segments ; 
cylindrical half of segments white above, with 
median black "line 2 2h2 hoe Sates orders eke ere Woodford, 3. 
6°, Two anterior rows of tubercles coarse and strong 
on all the segments, extending on to the keels ; 
segments of a uniform tilt: .n2n.ns o1ee sates ae verrucosus, 3. 
ee 
