Genera and Species of Millipedes. 433 
Loc. North Borneo, Sandakan coast (Governor Creagh). 
This species is smaller than the preceding two, is rather 
more coarsely granular, and has the edges of the keels more 
broadly whitened. 
Stenoniodes baluensis, sp. n. 
Colour black, with the white margins to the keels con- 
spicuous as in Creaghii, with the same form of first tergite but 
with coarser granulation, the two anterior rows of tubercles 
being distinct on all the segments and the tergites even at 
the end of the body distinctly, though finely granular; lastly, 
the tail is narrower than in the other species, with side 
margins that are straight and parallel, with angles more 
squared. 
Measurements in millimetres.—Total length 92; width of 
fifth segment 17°5, of caudal process 3°6. 
Loc. Mount Kina Balu (J. Whitehead). 
Stenoniodes sibutensis, sp. n. 
3 — Colour a very deep chocolate-brown or black ; margins 
of keels with a strong red tinge, the coloured rim also broader 
than in the other species. 
First tergite with its anterior angles not produced in front 
of the anterior border; the rest of the tergites and upperside 
of keels more coarsely granular; elevation at the base of the 
keel not very conspicuous, and not smoother than the rest of 
the keel ; lateral borders of keels more strongly lobulate than 
in the other species. Copulatory feet short as in Creaghit, 
but with the prongs shorter and curled almost as they are in 
Catorit. 
Measurements in millimetres.—Total length 64; width of 
second segment 9°5, of fifth 12°5, of caudal process 3°2. 
Loe. Sibutu Island, Sulu Archipelago (A. Everett). 
Genus ACANTHODESMUS, Peters. 
Acanthodesmus, Peters, Mon. Ak, Wiss. Berlin, 1864, pp. 546-547. 
— Acanthodesmus pinangensis, sp.n. (Figg. 6, 6 a.) 
Smaller than Andersoni and differently coloured. 
&.—Colour, Dorsal surface a blackish or reddish brown, 
the base of the keels the same tint as the dorsum of the 
seoment, the rest of the keels a dull brownish yellow ; lateral 
portions of first and second segments not yellow, of third only 
slightly so; legs and antennz distally infuscate. 
Sterna and cowe pale yellow. 
