Mr. J. Blackwall on some species of Araneidea. 



two transverse, curved rows, forming a crescent whose convex 

 side is in front ; the lateral eyes, which are seated on a protube- 

 rance, are much larger than the intermediate ones, those of the 

 anterior row being the largest of the eight. Cephalo-thorax 

 convex, compressed before, truncated in front, abruptly sloping 

 behind, without any indentation in the medial line ; it is of a red- 

 brown colour along the middle, with a broad brownish black band 

 on each side comprising several irregular red-brown marks. 

 Mandibles short, strong, subconical, vertical, dark brown tinged 

 with red. Maxillae convex near the base, enlarged where the 

 palpi are inserted, pointed at the extremity, and inclined towards 

 the lip, which is triangular : these parts are red-brown, the base 

 of the lip being much the darkest. Sternum heart-shaped, with 

 three dark brown spots on each side, and a streak of the same 

 hue extending from its posterior extremity to the middle. Legs 

 provided with hairs and sessile spines ; the femora of the anterior 

 pair are black, obscurely tinged with red on the sides and under 

 part ; the rest of these limbs is pale reddish brown, with the ex- 

 ception of a few dark spots on the sides of the genual joint and 

 the base of the tibia ; the second pair of legs resembles the first, 

 except that the base of the femora is pale reddish brown ; the 

 third and fourth pairs are pale reddish brown with a few annuli 

 of brownish black. First and second pairs of legs equal in length, 

 the latter extending a little wider in consequence of being arti- 

 culated to a broader part of the cephalo-thorax ; third pair rather 

 shorter than the fourth. Each tarsus is terminated by two 

 curved, pectinated claws. Palpi short; the humeral joint is 

 brownish black, palest at the base ; the cubital and radial joints 

 are reddish brown, obscurely marked with dark brown ; the latter 

 projects a long, brownish black, curved apophysis, which is re- 

 curved at the point, from its anterior extremity, on the outer 

 side, and a reddish brown, crescent-shaped one on the under 

 side ; the digital joint is oval, dark brown, convex and hairy ex- 

 ternally, concave within, comprising the palpal organs, which are 

 highly developed, complicated in structure, with a black spine 

 curved round their extremity, and are of a reddish brown colour. 

 Abdomen depressed, corrugated, particularly on the sides, thinly 

 covered with short strong hairs, broader at the posterior than at 

 the anterior extremity, the latter, which appears as if cut in a 

 straight line across, projecting over the base of the cephalo-tho- 

 rax; its colour is dark brown, obscurely tinged with reddish 

 brown ; the sides are mottled with yellowish white, and the plates 

 of the spiracles are dark reddish brown ; on the upper part are 

 five circular depressions ; the three anterior ones are disposed in 

 a triangle whose vertex is directed forwards, and the other two 

 are situated parallel to its base. 



