1870.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 549 



below by a narrow reddish yellow-brown semicircular band of a 

 similar nature to the scutum with which the abdomen is covered. 

 When the edges of the upper and lower scutum are brought 

 together, they enclose and conceal the spinners. The spiracular 

 openings are four in number, the two extra ones being smaller 

 than the others and situated one close behind each of the two 

 ordinary openings ; M. Simon, I. c. pp. 41, 42, says that he has 

 been unable to discover these extra openings in any species of Oonops 

 that has come before him ; they are, however, plainly visible in the 

 two examples of O. loricatus which I received from him, though 

 less plainly in O. punctatus Cambr. In the type of the genus, 

 O. pulcher, Tempi., owing to the minuteness of the Spider, and (after 

 it has been some time in spirit of wine) pale colour of the ab- 

 domen, the hinder spiracular openings are very difficult to be seen ; 

 indeed in some examples I am quite unable to detect them ; in one 

 or two, however, I can discern them sufficiently to be quite convinced 

 that the species possesses them ; only, being the merest possible 

 slits, they cannot in general be seen with an ordinary lens. It 

 would be strange indeed if they were really wanting in O. pulcher, 

 while so unmistakably present in O. scutatus, and O. loricatus, as 

 well as in the species next described (O. pauper), which last is very 

 nearly allied to O. pulcher, and in another undescribed species allied 

 to U. scutatus, received from Ceylon ; all these Spiders are, as it 

 appears to me, generically quite identical. 



Three examples of O. scutatus (one male and two females) were 

 found by myself under stones near Alexandria in April 18G4. 



Oonops pauper, n. sp. 



Adult female, length 1-^ line. 



The cephalothorax, falces, maxillae, labium, and sternum of 

 this Spider are of a dull orange-yellow colour, the legs and palpi 

 being pale straw-yellow, and the abdomen dull whity brown. 



The cephalothorax is short, broad behind, and strongly con- 

 stricted laterally at the caput ; the normal indentations are tolerably 

 strongly marked ; and the height of the clypeus is equal to half that 

 of the facial space ; the highest point (looked at sideways) is at the 

 thoracic junction, whence it runs by an evenly curved slope to the 

 clypeus, the hinder slope not being very abrupt ; the clypeus is 

 furnished with some minute tubercles, each of which was probably 

 furnished with a bristly hair ; but if so, these had been rubbed off 

 before this description was made. 



The eyes are large, seated on black tubercular spots, and occupy 

 the whole width of the fore part of the caput ; their position is the 

 same as that of those of 0. pulcher (Tempi.), but they are far more 

 circular in shape ; the hind lateral and central eyes form a slightly 

 curved row, whose convexity is directed forwards ; those of the 

 central pair are as nearly as possible contiguous to each other ; and 

 each is separated by rather less than its diameter's distance from the 

 hind lateral nearest to it ; the hind laterals have a strong sidewav 

 and backward direction, and each is very near, but not quite con- 



