30 Mr. J. Blackwall on newly discovered Spiders 



mity, fourteen in all ; the upper part is of a dull yellow colour, 

 with three small dark brown depressions on each side of the 

 medial line, forming an angle whose truncated extremity is 

 directed forwards; the anterior part, which projects over the 

 base of the cephalothorax, is of a brown colour ; a short fusiform 

 band of a brownish-black hue extends backwards from the an- 

 terior intermediate tubercle; it has an angular point on each 

 side, near the middle, and comprises six minute pale yellow 

 spots, two situated longitudinally between the lateral points, 

 and four at its posterior extremity, forming a small trapezium ; 

 the sides and under part have a brown-black colour; each of 

 the former is marked with three large, oblong, dull yellow spots, 

 and the anterior side of the four tubercles situated thereon has 

 a pale yellow hue ; four obscure pale yellow lines extend along 

 the under part, and the two intermediate ones meet at the spin- 

 ners ; the sexual organs are prominent, and have a long acute 

 process, connected with their anterior margin, which is directed 

 obliquely backwards and downwards ; their colour is dark red- 

 dish-brown, and that of the branchial opercula is brown. 



This spider is nearly allied to the Epe'ira mexicana of M. Lucas. 

 (See the ' Hist. Nat. des Insect. Apt.^ of M. AValckenaer, tom. ii. 

 pp. 130, 131.) 



Epeira edax. 



Length of the female y^ths of an inch ; length of the cephalo- 

 thorax J ; breadth i ; breadth of the abdomen 'j- ; length of an 

 anterior leg -^^ ; length of a leg of the third pair ^. 



The cephalothorax is compressed before, rounded on the sides, 

 convex, pubescent, and has an indentation in the medial line ; 

 the falces are powerful, conical, vertical, and armed with teeth 

 on the inner surface ; the maxillae are strong, and enlarged and 

 rounded at the extremity ; the lip is nearly semicircular, but 

 somewhat pointed at the apex; the sternum is heart-shaped, 

 with small eminences on the sides, opposite to the legs. The 

 legs are long, and provided with hairs and spines ; the first pair 

 is the longest, then the second, and the third pair is the shortest; 

 the tarsi are terminated by claws of the usual number and 

 structure; the palpi are short, and have a curved pectinated 

 claw at their extremity. These parts are of a dull yellow colour, 

 the falces having a tinge of brown at their extremity. The eyes 

 are disposed on the anterior part of the cephalothorax in two 

 transverse rows, those of the anterior row being the larger and 

 darker; the four intermediate ones are placed on a prominence 

 and nearly form a square, those of the anterior pair, which are 

 rather the largest of the eight, being a little wider apart than 

 those of the posterior pair; the eyes of each lateral pair are 



