. The Annals and magazine of natural history; zoology, botany, and geology. of the chelicera ;it arises above the second tooth, and at first is fairly wide andflattened dorso-ventrally ; towards the middle of its length,however, it is rotated sideways, becoming higher than wide,and is furnished with a short little keel crowned with den-ticles ; distal end of flagellum slender and bifurcated, con-sisting of a sharp little spine and a minute soft twisted Solpuga/roHi the Belgian Congo. 307 structure, wliicli is shaped rather like a sickle and clotliedwith short hairs. Immovable finoerof chelicer
. The Annals and magazine of natural history; zoology, botany, and geology. of the chelicera ;it arises above the second tooth, and at first is fairly wide andflattened dorso-ventrally ; towards the middle of its length,however, it is rotated sideways, becoming higher than wide,and is furnished with a short little keel crowned with den-ticles ; distal end of flagellum slender and bifurcated, con-sisting of a sharp little spine and a minute soft twisted Solpuga/roHi the Belgian Congo. 307 structure, wliicli is shaped rather like a sickle and clotliedwith short hairs. Immovable finoerof chelicera with tiie endstrongly curved; the first two teeth are large, and there aretwo little intermediate teeth between them and the next largetooth ; there is a very minute denticle on the upper surfaceof this finger in front of the flagellum. Movable finger witha single minor tooth betvveen the principal ones. Width ofhead-plate considerably less than length of tibia o£ palp, butalmost equal to that of the metatarsus. ? .—Width of head-plate very slightly exceeding length. Chelicera of Solpuga and B, distal half and extreme end of flagellum, greatly enlarged. of tibia of palp, but a little less than the length of its meta-tarsus + tarsus. Armature of chelicera practically the sameas in the male sex. The female (type) of 8. butleri, Poc, from the Congo, is avery large specimen, the length of its body being about52 mm. ; the width of its head-plate is considerably less thanthe length of the tibia of the palp or than the metatarsus -f-tarsus. Colour. Head-plate pale brownish or reddish yellow;apparently it is not nearly so deeply inf uscate as in S. yellowish at the sides, but darker above. Abdo-minal tergites rather dark brown, but the rest of the abdomen 308 On a neio Variety of European Tick. is yellowish with the exceptioa of a narrow dark strip imme-diately bordering the tergites. Palp and legs yellowish ;they are slightly darker in the male than in
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