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Show 560 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, of a different species, though it agrees in most respects with the given (11.c). The chief difference I can detect is in the colour of the legs; but as this may differ considerably in examples of different ages or in different states of preservation, it is not always conclusive on a point of specific identity. In the example now recorded the legs are yellow, the greater part of the femora of the first pair as well as lower part of those of the other pairs being suffused strongly with brownish black ; the cephalothorax is deep reddish brown, becoming black on the caput; the sternum and labium are yellowish strongly suffused with deep brown, the maxillae and palpi being dull yellowish ; and the abdomen is of a uniform purplish black above and on the sides, the underside being of a dull yellowish drab colour ; the legs are furnished with short dark blackish brown hairs. In the description given of E. nitida by Walckenaer the legs are said to be black, with a white ring at their base, and another of greater extent at the base of the femora of the third and fourth pairs. ENYO EXPERS, sp. n. Female, immature, length 1 line. The whole of the fore part of this Spider is of a brightish yellow colour, the legs, palpi, and sternum being rather the palest. The cephalothorax is of a somewhat oblong oval form with little or no lateral constriction at the caput; its convexity also is very moderate ; the clypeus, which equals in height half that of the facial space, is very projecting. The eyes are in the ordinary general position : the two large fore central ones are on a large roundish black patch ; and the three lateral ones on either side are contiguous to each other and form a short curved row on either side, the foremost eye being very nearly contiguous to the large eye on its side; the interval between the fore central eyes is nearly an eye's diameter. The legs are not very long ; their relative proportion appears to be 4, 1, 2, 3 ; and they are furnished with hairs only. Falces not very long, but strong, conical, and vertical. Abdomen oblong-oval; of a dull yellow colour, the upper part dark rusty red, with several indistinct slightly angular pale bars or chevrons on the hinder half. The spinners (apparently four in number) are not easily discernible; but on either side of them is a patch of deep rusty brown. A single example of this Spider (differing both in its general form and colour from all others known to me) was found under a stone at Alexandria in the month of April 1864. Fam. HERSILIIDES. Gen. HERSILIA, Sav. H E R S I L I A C A U D A T A ? var. (aut nov. sp.). (Plate LVIII. fig. 6.) Hersilia caudata, Sav. Egypte, p. 114, pl. i. fig. 8. In respect to this Spider, the type of the genus, all authors subse- |
