1874.] REV. O. P. CAMBRIDGE ON NEW DRASSIDES. 383 



cephalothorax is oval, most pointed before ; the lateral constrictions 

 at the caput are very slight ; and the normal grooves and indentations 

 are indicated by blackish lines, the ground-colour of the cephalo- 

 thorax being a rich deep brown, as also is that of the legs (except 

 the tarsi, which are reddish yellow-brown), the palpi, falces, maxillae, 

 labium, and sternum — the extremities of the maxillae, however, being 

 pale ; the abdomen is black, the spinners deep brown, and the 

 spiracular plates yellow-brown. 



The eyes are in two almost straight transverse lines, the foremost 

 being the shortest. The interval separating those of the hind central 

 pair (which are small, oval, but not oblique) is rather less than that 

 which divides each from the hind lateral next to it. The four laterals 

 are larger than the four centrals, those of the front row being the 

 largest of the eight ; and each of these is separated from the hind lateral 

 on its side by an interval equal to that which divides each hind lateral 

 from the hind central nearest to it ; each fore central is very nearly 

 contiguous to the fore lateral on its side, the interval between the 

 two fore centrals being apparently greater than the diameter of one 

 of them ; but these eyes are so dark and indistinct that it is not 

 easy to see their exact position. The figure formed by the eight eyes 

 is an oblong whose length (i. e. transverse diameter) is as nearly as 

 possible double its longitudinal diameter (or width). The height of 

 the clypeus is low, being less than half that of the facial space. 



The legs are moderately long and strong, the femora being pecu- 

 liarly strong and incrassated on their uppersides ; they are furnished 

 with hairs ; and the tibiae and metatarsi of the third and fourth pairs 

 have some tolerably strong spines ; the two terminal tarsal claws of 

 the fourth pair are rather longer, stronger, and less curved than the 

 rest. 



The character of the maxillae and labium is normal. 



The falces are moderate in length and strength, a little projecting 

 forwards and arched near their base in front, where they are 

 furnished with strong bristly hairs. 



The abdomen is oblong-oval, very sparingly clothed with hairs ; 

 it projects a little over the base of the cephalothorax. The inferior 

 pair of spinners are longest and strongest, but not so disproportioned 

 in size to the others as in P. tristicula and some others ; the genital 

 aperture is of characteristic form {vide Plate LI. fig. 10), and yellow- 

 brown, with deep red-brown margins. 



Three adult females of this species were found by myself in May 

 1864, under stones at Corfu. 



Prosthesima pallida, sp. n. (Plate LI. fig. 11.) 



Adult male, length 3 lines ; adult female 3§ lines. 



This species will be readily distinguished by the almost immacu- 

 late yellow colour of the whole of the fore part, i. e. all except the 

 abdomen, which is of a yellowish mouse-coloured brown above, the 

 underside being pale dullish yellow. 



The cephalothorax is of the ordinary form, rather narrower and a 

 little more constricted laterally at the caput than in P. tristicula ; it 



