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Show 570 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, from Algeria, pretty certain now that the Spiders referred to in the above synonyms are identical. Adult females were found on low plants near Alexandria in April 1864. THERIDION VARIANS. Theridion varians, Koch, Die Arachn. xii. p. 134, pl. 428. fig. 1056, 1057; Camb. P. Z. S. 1872, p. 280. Adult females, of the same species as that found near Jericho iu 1865, were found on low plants near Alexandria, and are, I think, quite correctly assigned to T. varians, Koch. THERIDION SPINITARSIS, sp. n. (Dipcena, Thor. ?). Adult female, rather more than 1| line in length. This Spider is of ordinary form, but of a stronger build than usual. The whole of the fore part is of a dull orange-yellow colour, the caput having a longitudinal central black stripe running from the eyes to the thoracic junction. The legs, whose relative length is 1, 2, 4, 3, are tolerably strong and moderately long ; they are similar to the cephalothorax in colour, with the fore extremities of the tibiae slightly marked with deep red-brown ; they are more hairy than usual, the metatarsi being armed (particularly on their undersides) with long fine spines. The other joints also had, it is probable, originally been similarly furnished ; but if so most of them had lost a great part of this armature by trituration. The abdomen is oval, abruptly rounded, in profile, at its hinder extremity, and projects over the hinder slope of the cephalothorax; it is hairy, and of a yellow-brown colour thickly mottled with whitish-yellow cretaceous spots ; the upperside has a broad longitudina pale yellowish white dentated band running down the centre from the fore margin to the spinners, getting slightly narrower as it leaves the middle of the abdomen and goes backwards; on either side of the hinder extremity of this band there are some ill-defined dark red-brown markings. The sides are Vandyked by some fine red-brown lines, one of which crosses over the upperside near the middle, and two others over the fore part; the underside is of a dull yellowish brown colour, with a large, somewhat quadrate, yellowish white transverse band across the middle. A single example of this Spider was found on a low plant near Cairo. In the absence of the adult male I hesitate to include it in the genus Dipcena, Thor., to which it will very probably be eventually found to belong. THERIDION MELANOSTICTUM, sp. n. Adult female, length 1§ line. This pretty species is nearly allied to T. denticulatum. The abdomen is large and globular, and projects considerably over the base of the cephalothorax; it is of a yellowish colour, pretty thickly mottled above and on the sides with white cretaceous spots, and also marked with black spots and markings. In some examples the upperside is likewise tinged with reddish brown, giving a kind |