OXYDESMIDA^. 
1 1 
7. Lacnodesmus FLABELLATUS (Cook) ; Congo Valley ; U. S. Nat, Museum. 
8. Lacnodesmus ituri, n. Rather closely relating to Z. and of 
the same size and uniform dark color ; last segment with the sides 
scarcely diverging and apically narrower than in L. ca7npii ; segments 
18-19 with their posterior corners narrower and more produced than in 
L campii ; locality Ituri Faehre, northwest of Albert Nyansa ; Stuhl- 
mann ; Berlin Museum. 
9. Lacnodesmus thyriuotus, sp, n. Size and general appearance somewhat 
that of L. valgus ; differing in the greater convexity of the dorsum (pos- 
sibly a sexual character), the slight development of the dorsal tubercles 
and areas, the greater prominence of the submarginal ridge, the more 
rounded posterior corners of the carinse, less produced on posterior 
segments, and the shorter last segment with the two large marginal 
tubercles much less developed than in L. valgus ; color nearly black, a 
small, transversely rectangular light spot on each anterior subsegment, 
divided by a fine dark median line ; length about 70 mm. ; locality 
Jaunde Station, Kamerun ; Berlin Museum. 
10. OxYDESMUS AFER Gray ; Senegambia ; British Museum. 
11. OxYDESMUs ASABA, sp. H. Dorsum with tubercles distinct, though not 
prominent ; carinae with submarginal ridge moderately prominent, close 
to the margin, which is entire, or slightly sinuate on poriferous seg- 
ments ; pores opening obliquely outward, the surrounding depression 
very slight ; color of anterior subsegments nearly black, of posterior 
dull yellow with a longitudinal band of black on each side at the base of 
the Carina; length 45 mm., width 7 mm., the smallest species of the 
genus ; locality Asaba, River Niger ; British Museum. 
12. OXYDESMUS BAROMBi, Sp. fi. Differs from O. johnstonei, sp. n. in the 
smaller size, the absence of the prominences of the vertex, the less con- 
vex segments, and the less prominent submarginal ridges ; color lighter 
than in O . johnstonei, dark coffee brown, sometimes lighter mesially; 
legs and antennse concolorous ; male 60 mm. by 10 mm., female 66 mm. 
by II mm. ; Barombi Station, Kamerun ; Berlin Museum. 
13. OXYDESMUS CAFFEROiDES (Mattozo) ; Cabinda; Lisbon Museum. 
14. OXYDESMUS DENTATUS, Sp. fi. Segments dorsally densely granulate, the 
three rows of tubercles prominent, more so than in any other species 
here referred to Oxydesmus ; carinse with edges distinctly sinuate-den- 
tate ; submarginal ridge smooth, prominent, broad ; pores removed 
from the margin by about four times the diameter of the rim ; color 
black, the submarginal ridge bright yellow ; antennae and ventral sur- 
face reddish; length about 60 mm., width 10.5 mm.; Africa; British 
Museum, a single female. 
15. Oxydesmus dollfussii, sp, n. Segments with surface smooth and shin- 
ing, faintly and sparingly rugulose, divided into three rows of large 
areas with or without low tubercles ; carinae with submarginal ridge 
broad, especially on poriferous segments ; not sharp above, the pore in 
a depression of its highest part ; last segment with apex thickened, 
smooth and shining below, the apical setigerous punctations very close 
together ; color uniform, rather dark, dull, terra cotta red, tinged with 
pink below; length 85 mm. ; locality Africa ; British Museum. 
16. Oxydesmus dorsalis (Murray); locality unknown. 
