Genera and Spectes of Millipedes. 431 
the pores close to (about one diameter from) the edge, the 
first tergite without produced or widely rounded front 
keels, &e. 
Fig. 1.—Phyodesmus ornatus. Left copulatory foot ; outer view. 
Fig. 2.—Phyodesmus Hoset. Ditto. 
Fig. 3.—Phyodesmus vittatus. Right copulatory foot ; outer view. 
Fig. 4.—Stenoniodes Catorti. Left copulatory foot; outer view. 
Fig. 4a.—Ditto. Apex of copulatory foot from below. 
Fig. 5.—Stenoniodes Creaghit. Left copulatory foot ; outer view. 
Fig. 5a.—Ditto. Ditto from below. 
Fig. 6.—Acanthodesmus pinangensis. Left copulatory foot; outer view. 
Fig. 6a.—Ditto. Right copulatory foot from below. 
Fig. 7.—Acanthodesmus perakensis. Ditto. 
Fig. 8.—Acanthodesmus Petersii. Ditto. 
Fig. 9.—Acanthodesmus lineatus. Ditto. 
Fig. 10.—Zurydirorhachis dulitensis. Right copulatory foot; outer view. 
Fig. 11.—Eurydirorhachis discrepans. Left ditto. 
Stenoniodes Catorti. (Figg. 4, 4a.) 
$-— Colour of segments a uniform purplish black, only 
the three borders of the keels yellowish white ; head, antenna, 
and legs blackish ; sterna and bases of legs ochre-brown. 
First tergite granular, with an anterior marginal row of 
beads, its anterior border straight, keels not or hardly 
elevated ; the following three segments granular above, the 
following segments merely coriaceous, granular on the keels ; 
the prominence at the base of the keels conspicuous and 
sculptured like the dorsum, being coriaceous; keels wider 
