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Show 376 REV. O. P. CAMBRIDGE ON N E W DRASSIDES. [June 2, double the length of and very much stronger than those of the superior pair. A single adult male was found by myself at Alexandria (Egypt) in April 1864. GNAPHOSA CORCYR^EA, sp. n. (Plate LI. fig. 5.) Adult male, length 2\ lines. This Spider is of ordinary form and general structure, and is allied nearly to G. plumalis (Cambr.), but may be easily distinguished by the form of the palpi and palpal organs. The cephalothorax is yellow-brown, narrowly margined with black and with a broad marginal band of white pubescent hairs ; the indentations marking the caput from the thorax are strongly suffused with blackish, as also, though not quite so strongly, are the other normal indentations ; the upper part of the caput is furnished with white pubescent hairs; the height of the clypeus is less than half that of the facial space. The eyes are small, not very unequal in size, and in the ordinary position ; those of the hind central pair are further from each other than each is from the lateral of the same row on its side ; the interval between each lateral and central on its side of this row is greater than the diameter of the lateral. The legs are rather short, strong, furnished with spines and hairs ; but these last were nearly all rubbed off in the only example found ; the legs are of a yellow-brown colour, and their relative length is 4, 1, 2, 3. The palpi are short and strong, and similar in colour to the legs ; the radial is short, but equal in length and strength to the cubital, and its outer extremity is produced into a short, broad, obtuse apophysis, having several bluntish points at its extremity ; the digital joint is rather large, and longer than the radial and cubital joints together ; it is of an oval form, and has a small prominence near its base on the outer side. The palpal organs are well developed and prominent, but not very complex, consisting of a large corneous lobe a little irregular in its outline on the inner side and at the extremity. Falces moderate in size, straight, nearly vertical, and of a conical form and dark yellow-brown colour. The maxilla, labium, and sternum are of ordinary form, and similar to the cephalothorax in colour. The abdomen is of moderate size and oval form, rather truncate before, and not very convex above ; it is of a blackish-brown colour above. Six impressed spots of a pale colour, arranged in two short, longitudinal, curved, divergent rows of three each on the fore half of the upperside, are clothed with whitish hairs; between these is a shortish dark blackish oblong bar or patch ; and from this to the spinners runs a broadish central pale band, emitting on each side several short slightly oblique pale bars clothed with whitish hairs ; the sides have three broad pale yellow-drab, oblique bands nearly contiguous to each other and running from the * |