638 Mr. Blackwall's Descriptions of new Species of Spiders. 



rufo-brunneis, nisi in tibiis paris Imi et 2di saturate brunneis ; pari 4to 

 longissimo, dein lino, 3tio brevissimo. 



Maris pars anterior cephalo-thoracis elevata transversa bipartita, 

 segmento posteriori longiori obtuse, anterioris apice instructo tuberculo 

 parvo eonico prope cujus apicem antic^ processus duo minuti surstim 

 curvati. 



Length of the female x&th of an inch ; length of cephalo-thorax -^ ; breadth 

 -^ ; breadth of abdomen -^ ; length of a posterior leg \ ; length of a leg 

 of the third pair xq. 



Cephalo-thorax oval, glossy, gibbous above, with slight furrows on the sides, 

 and a minute indentation in the medial line of the posterior region. Man- 

 dibles conical, armed with teeth on the inner surface, and inclined towards 

 the sternum, which is broad, convex and heart-shaped. These parts, with 

 the lip, are brownish black. Maxillae reddish brown. Legs red-brown, 

 with the exception of the tibiae of the first and second pairs, which are 

 dark brown; fourth pair rather the longest, then the first, third pair the 

 shortest. Palpi dark brown. Abdomen oviform, convex above, project- 

 ing over the base of the cephalo-thorax; it is thinly covered with hairs, 

 glossy, and brownish black. Sexual organs rather prominent. Plates of 

 the spiracles yellow. 



The male resembles the female in colour and in the relative length of 

 its legs. The fore part of the cephalo-thorax is elevated, and divided into 

 two segments by a transverse groove in front ; the posterior segment is 

 the larger, and has a pair of eyes seated on its summit, which is obtuse 

 and rounded ; the anterior segment is surmounted by a small, conical emi- 

 nence, near the apex of which, in front, are two minute processes curved 

 upwards; at the base of this cone, immediately below the curved pro- 

 cesses, the smallest pair of eyes is situated, the two lateral pairs being 

 placed on the sides of the anterior segment. The fourth joint of the palpi 

 is larger than the third, and consists of three parts ; one in front, which 

 is broad, and round at the extremity; a smaller one underneath, of a 

 similar form ; and a long, slender one on the inner side, which passes 

 obliquely before the fifth joint : fifth joint somewhat oval, having a pro- 



