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Show 1876.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 547 M. Simon (Les Arachnides de France, ii. p. 5) states that U. du-randi, Walck., is also found in Egypt; I did not, however, meet with it myself there, though I found it shortly afterwards in the crevices of old olive-trees at Corfu, whence it could only be extracted by inserting a piece of stick, jagged at the end, into the crevice, and twisting it into the strong silken nest, when the whole with its occupant could now and then be drawn safely out. Gen. ARIADNE, Sav. ARIADNE INSIDIATRIX. Ariadne insidiatrix, Savigny, Egypte, p. 109, pl. i. fig. 3. An adult female among debris of an old mud wall near Cairo, in January 1864. Gen. D Y S D E R A , Latr. DYSDERA LATA. Dysdera lata, Reuss-Wider. Mus. Senckenb. torn. i. p. 201. Several examples which, after careful examination, I believe to be of this species, were found under stones at Alexandria in April 1864. None of these examples were adult; this determination, therefore, cannot be considered absolutely certain, since there are several nearly allied species, such as D. crocota, C. Koch, and D. maurusia, Thor., of which the immature examples appear almost to defy certain determination. Gen. O O N O P S , Templeton. O O N O P S SCUTATUS, sp. n. (Plate LVIII. fig. 2 A.) Adult male, length \\ line. This Spider is very closely allied to Oonops loricatus, Sim.; it is, however, larger, the measurement of that species (taken from two examples kindly sent to me by M . Simon) not exceeding three fourths of a line in length; the abdomen of the present spider is also of a rather narrower form, but more convex above, and far more glossy and polished on its upper surface, while in colours and some other characters there is but little apparent difference. The cephalothorax is oval, strongly constricted laterally at the caput; the thoracic junctional point is (looked at in profile) of an angular form, and elevated above the level of the rest of the cephalothorax, the hinder slope being abrupt; it is of a bright orange-brown colour; and the sides and hinder part are thickly covered with minute tubercles or granulosities, which in some positions assume the appearance of punctures. The eyes are large, six in number, closely grouped together, and occupy nearly the whole of the upperside of the fore extremity of the caput, where they form a quadrilateral figure whose foremost side is considerably shorter than the hinder one; they do not differ much in size, and are all of a more or less oval shape ; those of the hind central pair are closely contiguous to each other, their sides of contact being flattened and so closely joined as almost to conceal the junction. The eyes of each lateral pair are very near together, but |