Mr. J.'Blackwall on new species of Madeiran Spiders. 259 



articulated to broader parts of the cephalothorax, the third ap- 

 pears to be longer than the second, and the second longer than 

 the first; each tarsus is terminated by three claws; the two 

 superior ones are curved and pectinated, and the inferior one is 

 inflected near its base. The palpi resemble the legs in colour, 

 and have a curved, pectinated claw at their extremity. The 

 cephalothorax is large, elongated, much compressed before, and 

 rounded and depressed on the sides, which are marked with 

 furrows converging towards a narrow indentation in the medial 

 line ; it is thinly clothed with hairs, glossy, and of a dark-brown 

 colour tinged with yellow along the middle ; the immediate re- 

 gion of the eyes is the darkest, and a fine, longitudinal, brownish- 

 black line occurs on the lateral margins. The falees are powerful, 

 conical, vertical, convex at the base in front, armed with teeth 

 on the inner surface, and have a very dark-brown hue. The 

 maxillae are enlarged and rounded at the extremity, and slightly 

 curved towards the lip, which is nearly quadrate, being rather 

 broader at the base than at the apex ; and the sternum is heart- 

 shaped. These parts are of a yellowish-brown colour, the base 

 of the lip being the darkest. The eyes are disposed on the 

 anterior part of the cephalothorax in two transverse, curved 

 rows, having their convexity directed forwards ; the four consti- 

 tuting the anterior row, which is slightly curved, are near to 

 each other, and minute, the two intermediate ones being the 

 smallest; and those of the posterior row, which is much curved, 

 are larger and wider apart, the two intermediate ones being the 

 largest of the eight. The abdomen is oviform, hairy, convex 

 above, and projects over the base of the cephalothorax ; it is of 

 a brown colour densely freckled with black, the under part being 

 the palest, and along the middle of the upper part an obscure 

 series of yellowish-white angular lines extends, which have their 

 extremities enlarged and their vertices directed forwards ; the 

 spinners have a brown hue, and the two superior ones are tri- 

 articulate, much longer than the rest, and have the spinning- 

 tubes disposed on the inferior surface of the terminal joint ; the 

 sexual organs are highly developed, rather prominent, and of a 

 red-brown colour. 



Specimens of Textriw obscvra were found among stones in the 

 neighbourhood of Funchal. 



Family Theridiid^. 



Genus Theridion, Walck. 



Theridion luteolum. 



Length of the female -i-^ih.^ of an inch ; length of the cephalo- 



17* 



