Mr. Black wall's Descriptions of new Species of Spiders. 667 



projecting ovei- the base of the cephalo-thorax ; it is thinly covered with 

 hairs, glossy, and brownish black. Plates of the spiracles dull brown. 

 Some individuals have an obscure series of angular lines of a brownish 

 hue, whose vertices are directed forwai'ds, extending along the middle of 

 the upper part of the abdomen. 



Males of this spider, in a mature state, were found on rails in the township 

 of Crumpsall, in November 1836. 



Genus Manduculus*, Blackw. 



50. Manduculus limatus. Cephalo-thorace sternoque rufo-brunneis, illo fascia 

 mediana maculisque paucis lateralibus nigris ; mandibulis maxillis labio- 

 que saturate rufescenti-, pedibus palpisque flavescenti-brunneis ; pedum 

 pari Imo longissimo, dein 2do, 3tio brevissimo ; abdomine rufo-brunneo 

 serie mediana linearum angularium albarum, fasciaque utrinque laterali 

 lata flavescente supern^ pallidiore infern^ rufo-brunneo tincta. 



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

 Y^ ; breadth of abdomen ^ ; length of an anterior leg ^ ; length of a 

 leg of the third pair ^. 



Cephalo-thorax rather large, oval, convex above, glossy, and rough, like sha- 

 green; the anterior part, where the eyes are situated, is slightly elevated, 

 and rounded, and there is an indentation in the medial line of the poste- 

 rior region ; its colour is red-brown, with a black band extending along 

 the middle, and a few obscure spots of the same hue on the sides, just 

 above the margins. The sternum is heart-shaped, and rough, resembling 

 in colour the ground of the cephalo-thorax. Mandibles remarkably 

 powerful, conical, convex in front, widely divergent at the extremity, 

 armed with two rows of teeth on the inner surface, and of a very dark 

 reddish brown colour, approaching to black. Maxillae inclined towards 

 the lip, which is triangular; these organs are dark reddish brown, the 

 latter being rather the darker. Legs and palpi long, slender, and yellow- 

 ish brown. First pair of legs the longest, then the second, third pair the 



* For the characters of this genus, see the London and Edinburgh Philosophical Magazine and 

 Journal of Science, vol. iii. p. 110-11 ; and Researches in Zoology, p. 358-9. 



VOL. XVIII. 4 s 



