| OCR Text |
Show 380 REV. O. P. CAMBRIDGE ON N E W DRASSIDES. [June 2, nearly two of their diameters, and considerably larger than that which separates each from the hind lateral on its side. The eyes of each lateral pair are separated from each other by nearly the diameter of one of them, there being but little difference in their size. The eyes of the fore central pair are (apparently) but little larger than the hind centrals; the interval between them is less than two diameters, and that between each and the fore lateral on its side is equal to about the diameter of the former. The leys are rather long and moderately strong ; their relative length is 4, 1, 2, 3 ; they are of a deep brown colour, getting paler towards the extremities, the tarsi being pale yellowish. The palpi are not very long nor strong, but similar in colour to the legs; the cubital and radial joints are equal in length ; the latter has its outer extremity produced into a strongish, tapering, bluntish-pointed apophysis, rather less in length than the joint itself; the digital joint is of ordinary form, rather large, and its length exceeds that of the radial and cubital joints together. The palpal organs are simple and have a short, strong, curved, bluntish-pointed, corneous process or spine near their extremity. The falces are long, strong, projecting, and considerably arched or prominent near their base in front; they are similar to the cephalothorax in colour, and their fore sides are covered with black granulations or small tubercles; from some of these issue strong bristly hairs; and probably from the rest similar bristles had been rubbed off. The maxilla are of normal form. The palpi issue from above the middle point towards their extremity; they are of a deep yellow-brown colour, paler at the extremities. The labium is of normal form, and similar to the cephalothorax in colour. The sternum has numerous prominent bristly hairs round its margin ; and its general surface appeared to be covered with minute punctures ; its colour is similar to that of the maxillae. The abdomen is of an oblong-cval form, and projects over the base of the cephalothorax ; it is black, clothed with hairs, and has a deep-brown coriaceous patch at its fore extremity on the upperside. The spinners are blackish and of ordinary size ; those of the inferior pair are double the length of the superior pair, but about equal in strength. A single adult male was found at Alexandria, under a stone, by myself in April 1864. PROSTHESIMA NILICOLA, sp. n. (Plate LI. fig. 8.) Adult male, length 1| line. This small but very distinct species is of ordinary general form and structure. The cephalothorax is glossy, and of a rich deep brown colour, narrowly margined with black ; the ordinary grooves and indentations are barely visible, and the lateral constriction at the caput is very slight. |
