584 OPILIONES. 
closely set cusps ; coxa iii, without a posterior marginal row. Palpi with minute cusps on the femur, 
patella, and tibia; tarsus without cuspules beneath ; patella with a blunt inner apical spur. Femora of 
legs set with very minute cusps. 
Colour. Coxe, trochanters, genital plate, and ventral segments slate-colour; prosoma brown dorsally ; 
opisthosoma dorsally orange, with a narrow, central, black, longitudinal band; the first two terminal 
free segments black in the centre, the last two entirely black. Mandibles brown, with pale digits, 
apically black ; femur, patella, and tibia of palpus black-brown, the two latter pale at the apex, the tarsus 
pale yellow. Legs pale brown, patelle and apex of tibie darker. 
2. Similar to the ¢, except in size; posterior free segments entirely dark. The genital organ, however, is 
a sure criterion of the sex. 
Tarsal claw of palpus with four denticles in both sexes. 
Hab. Mexico, Teapa (H. H. Smith). 
5. Leiobunum albofasciatum, sp. n. 
Type ¢, gynetype 2, in coll. Godman & Salvin. Total length, g 4, 2 6 millim.; leg ii, ¢, 70; femur ii., 
©,10°5 millim. 
dg. Clypeus without spines; eye-tumulus with a central groove, eye-ridges with a row of six cusps on each. 
Prosomatic and opisthosomatic dorsal integuments densely covered with small fovex, not granulose ; the 
anterior five segments of the latter area fused. Coxe of legs, genital plate, and sternal segments 
rugulose, and covered with numerous very minute granules, but not with small spines as in L. fulvum. 
Coxe with a marginal series of trifid cusps, except along the posterior margin of lli.; genital plate witha 
marginal series of spines. Palpi with the femur spinose beneath ; patella and tibia densely clothed with 
minute sharp spines dorsally and iaterally, the former bearing on the inner apical margin a large densely 
spinose spur; tarsus without cuspules beneath; tarsal claw with denticles. Legs, except the two 
terminal segments, set with minute cusps. 
Colour. Body brown-black, with the lateral areas of the ventral segments 4~7 dull white; mandibles and 
tarsus of palpus pale yellow ; legs pitchy-brown. Sternal segments often yellow. 
2. Similar to the g, but the integuments are finely granulose, not foveolate, and the cusps on the coxee are 
simple, not trifid; the eye-ridges are without spines, as are the palpi; femora of the legs furnished with 
cusps; tarsal claw of the palpus with denticles. 
Hab. Mexico, Orizaba (H. H. Smith). 
6. Leiobunum marmoratum, sp. n. 
Type, 2, in coll. Godman & Salvin. Total length 5 millim. ; femur of leg ii. 12 millim. 
2. Clypeus and eye-tumulis smooth. Femora of legs with minute spines, the other segments smooth. 
Palpi without cuspules beneath. The last two segments of the prosoma dorsally conspicuously folded. 
Colour. Body and legs black, blotched and mottled with white. Prosoma white, the clypeus and space round 
the eye-tumulus black ; segment i. and half of segment ii. of the opisthosoma bearing a square black 
blotch finely outlined with white. A broad, central, white band, breaking off into a divergent band on 
each side, follows ; the divergent bands enclosing and forming a large subtriangular black blotch. The 
lateral dorsal area on each side is black, as is also the apex of the abdomen. 
Hab. Mexico, Omilteme in Guerrero (H. H. Smith). 
7. Leiobunum fulviventre, sp.n. (Tab. LIV. fig. 28, 2.) 
Type, 2, in coll. Godman & Salvin. Total length 6°5 millim. ; femur ii. 16 millim. 
2. Very similar, generally, to that of LZ. coriaceum, but the body-integuments are not nearly so coarsely 
granulose (the granules being noticeable only under a high magnifying-power). The femur of the palpus 
is without spinules, the patella with one or two above ; tarsal claw without denticles. 
