431 Rev. 0. P. Cambridge on new Species of Spidei's 



organs highly developed; maxillee. rathei' pointed at their ex- 

 tremity. 



Adult male. — Length -^-^ of an inch ; relative length of legs 

 1, 4, 2, 3, the shortest just half the length of the longest. 



Cephalothorax small, and very prominent at the eyes, with 

 a slight indentation in the medial line. Colour reddish yellow ; 

 lateral margins, in adult females, but not in the males, dark 

 red-brown. 



Eyes eight, on front of cephalothorax, in two transverse rows, 

 the four intermediate ones forming a square, the two front ones 

 of which are placed on a strong projection, and are larger and 

 darker than the rest of the eight ; the eyes of each lateral pair 

 are placed on a small tubercle, and are contiguous. 



Legs moderately long and robust, and provided with hairs ; 

 relative length 1, 4, 2, 3. Each tarsus ends with three claws. 

 Colour reddish yellow, the tibise of the first and second pairs 

 strongly tinged with deep red-brown, and a longish conspicuous 

 spot of the same colour at the end of the tibise of the fourth 

 pair. 



Palpi short ; cubital and radial joints very short ; cubital rather 

 gouty-looking, and radial somewhat lengthened on the inner 

 side at the end ; digital joint large, oval, convex, and hairy out- 

 side ; palpal organs highly developed and pi'ominent, and, with 

 the joint to which they are fixed, of a coppery-brown colour. 



Falces short and vertical. 



Maxillce rather pointed at the end, and inclined towards the 

 labium, which is semicircular. 



Sternum convex and heart-shaped. All these parts are coloured 

 like the legs, though of a duller tinge, being more sufi"used with 

 pale brown. 



Abdomen oviform, and projecting slightly over the base of the 

 cephalothorax; colour blackish brown, with an opake shining 

 leaden hue, differing in intensity in different individuals, some, 

 especially immature females, being of a yellowish brown, while 

 several immature males had the cephalothorax and palpi very 

 dark brown, and all the legs more or less clouded and blotched 

 with the same colour. 



The adult female differs from the male only in being rather 

 larger, and in having the front part of the cephalothorax less 

 prominent. 



Immature specimens of both sexes were discovered by myself 

 under pieces of stone and rock, in the island of Portland, in 

 October 1859, and adults of both sexes in the same locality in 

 June 1860. Like many of this genus, it is a dull, sluggish 

 spider. 



