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Show 536 REV. O. P. CAMBRIDGE O N [Nov. 25, of these pairs are contiguous to each other, seated on a slight tubercle, and parallel to the central oblong figure. Legs long, those of the first pair greatly the longest-at least three times the length of the Spider; they are moderately strong, and their relative length is 1, 2, 4, 3 ; colour yellow ; femora of first pair tinged with reddish brown; the extremities of all the femoral, genual, and tibial joints are dark red-brown; all the legs are furnished with hairs and black spines, of which latter those of a double longitudinal series on the tibiae of the first two pairs are most conspicuous. Palpi slender, not very long, of a pale yellow colour; the digital joints are furnished with conspicuous black bristles; a long prominent one also issues from the anterior extremity of each cubital joint, and another (not far from it) from the inner side of each radial joint. Falces rather long, powerful, but very slightly divergent at their extremities, prominent in front near their base, and similar in colour to the cephalothorax. Maxillee long, strong, divergent and enlarged at their extremities, which are rounded on the inner sides, where their colour is pale, the rest being of a deep brown. Labium short, oblong, rounded at the apex, and transversely indented or rugulose. Sternum heart-shaped, of a deep rich brown colour, with some long black prominent bristles in front. Abdomen oblong-oval, projecting greatly over the base of the cephalothorax, and rather flattened above; its colour is yellowish brown, more or less suffused with dull golden metallic spots; a broad longitudinal, strongly dentated band of a browner hue, but similarly suffused, occupies almost the whole of the upperside, narrowing as it approaches the spinners; this band has on its outer margins a broken but strong and conspicuous edging of black spots and markings, forming two irregularly dentated black lines; on the fore half of this band is a central longitudinal brown line, crossed by another about midway, and with its hinder extremity trifid; this crossed line is formed by the greater suffusion and covering of the surrounding space by metallic spots ; the sides are marked with two or three inconspicuous oblique dark lines ; and the underside has a broad longitudinal black bar edged on either lateral margin by a conspicuous bar of pale metallic golden spots, a blotch of the same forming a continuation of each on either side of the spinners ; these are short and almost concealed beneath the extremity of the abdomen ; the sexual organs outwardly only present a small inconspicuous aperture at the base of a large squarish maroon-brown-coloured patch. A single adult female in Air. Melliss's St.-Helena collection. TETRAGNATHA INDIGNA, n. sp. (Plate XLII. fig. 4.) Male immature, length 2\ lines. In form, structure, prevailing colour, and general appearance this |