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Show 1900.] NEW SPIDER FROM BORNEO. 3S5 under the metatarsus, forming a prehensile weapon when these joiuts are apposed. MANTISATTA TRUCIDANS, n. sp. (Fig. 1.) Female. Total length 4 mm. ; length of thorax 1 ,| mm. ; lenglh of abdomen 2| mm. Greatest breadth of thorax (about the level of the second pair of legs) about 1 mm.; of the abdomen about •75 mm. Mantisatta trucidans, 2> much enlarged. The cephalothorax is much depressed and is about half as long again as broad. The first pair of eyes are very large, occupying the whole breadth of the lacies, and are mounted on short cylinders which project forward. The second and third pairs of eyes are on confluent dark-coloured eminences. The second eyes, wiiich are pale-coloured, are about a quarter of the anterior eyes in diameter. The third eyes are very small and black. The fourth pair of eyes, somew hat farther behind the third pair than these are behind the second, are dark and moderately large, their diameter being about one third of that of the anterior eyes. The whole ocular area (fig. 2, p. 386) forms almost an exact square. The abdomen is a depressed cylinder, more than three times as long as broad. The spinnerets are not visible from above, being hidden by a caudal process (fig. 3, p. 38'3). The anterior legs are about as long as the whole animal, the femora, patella3,and tibias being very strongly developed, and giving |
