Genera and Species of Millipedes. 435 
the head to the base of the last segment; sterna and bases 
of legs pale ; antenne and legs ochraceo-fuscous. 
Antenne long, as wide as the third segment, less than the 
ninth by half the width of the keel. 
Dorsal surface finely granular or coriaceous, the tubercles 
not very distinct; keels large and nearly horizontal, with 
anterior and posterior borders finely serrulate and lateral 
margin almost entire; only finely sinuous on the posterior 
keels ; anterior angles strongly convex, anterior border also 
convex, with rounded basal shoulder; posterior border 
angulate basally, lightly concave; posterior angle acute, 
shortly spiniform ; pores about three diameters from the 
edge. 
‘Caudal process very wide, rather strongly notched just 
before its posterior angles ; the middle of its posterior surface 
widely produced. 
Copulatory feet with the external prong directed downwards 
and outwards, the lower or inner prong curved almost vertically 
upwards and backwards. 
Measurements in millimetres.—Total length 54; width of 
second segment 7°8, of fifth 9°5. 
Loc. Singapore (H. N. Ridley). 
This species differs from the preceding in the presence of 
a median dorsal yellow band, the small amount of yellow on 
the keels, the greater distance of the pore from the margin, 
its larger keels and longer antenne. 
EURYDIRORHACHIS, gen. nov. 
Antenne short, a trifle exceeding the width of the first 
tergite. 
Body very wide in front, owing to the large size of the 
anterior keels, which resemble in shape and approximately 
in size those of the rest of the body, the second segment being 
as wide across as the seventeenth or sixteenth ; first tergite 
with its angles not produced forwards, but widest just behind 
the anterior border. 
Tergites coarsely granular, tubercles distinct ; keels with 
anterior and posterior borders finely serrulate; lateral margin 
lobulate, fluted, the pore remote from it; anterior border 
basally shouldered, angle rounded, posterior angle square or 
acute, but not spiniform ; from the fifteenth segment the keels 
project posteriorly beyond the level of the posterior border 
of the tergite. 
Caudal process very wide, widest at its posterior angles. 
Sterna with four short spines directed posteriorly. 
