448 REV. O. P. CAMBRIDGE ON SIBERIAN SPIDERS. [May 6, 



eyes ; the hinder part of the base of the eminence is nearer to the 

 hind central than to the fore central pair of eyes, in fact contiguous 

 to them ; it is of a rich reddish yellow-brown colour, the margins, 

 normal indentations, and a patch behind the eyes being marked with 

 a dusky but darker hue : the eminence is higher than it is broad at 

 its base ; its apex is hollow or with a very shallow longitudinal notch, 

 and its apical margins are slightly folded over outwards. 



The eyes are nearly of uniform size ; they are in four pairs sur- 

 rounding the eminence ; those of the hinder pair are less than an 

 eye's diameter separated from each other and are close to the base of 

 the eminence ; those of the foremost pair are nearly, but not quite, 

 contiguous to each other, and seated a very little way in front of its 

 base ; those of each lateral pair are contiguous to each other and 

 placed very slightly obliquely ; the foremost of each of these lateral 

 pairs is very close to but distinctly separate from the fore central eye 

 nearest to it. 



The legs are moderate in length and strength ; they are orange 

 reddish yellow, furnished with hairs and a few prominent slender 

 bristles ; their relative length appeared to be 4, 1, 2, 3. 



The palpi are not very long, and except the digital joint (including 

 the palpal organs) slender and similar in colour to the legs. The radial 

 joint is stronger than the cubital, and has its fore extremity produced 

 into two apophyses : one from its upperside continues the joint in a 

 long, sinuous, and gradually tapering form, extending to about two 

 thirds of the length of the digital joint ; the point of this apophysis is 

 neither dilated, nor cleft, nor acute, but simply obtusely pointed : 

 the other apophysis is on the inner side of the joint and curves 

 round beneath the apophysis already described ; it is, however, not 

 quite so long, and has its extremity (which protrudes outwards from 

 under the other) bifid or divided into two limbs, the inferior one of 

 which is longer than the other. The digital joint is large and of a 

 somewhat irregular oval form. The palpal organs are highly de- 

 veloped, prominent, and complex ; their main feature consists of a 

 strongish black tapering spine, coiled in a large circle rather beneath 

 on their outer side ; in contact with this spine is a considerable 

 quantity of semitransparent whitish membrane. The radial joint, as 

 well as its apophyses, and the digital joint are furnished with longish 

 hairs. 



The falces, maxillce, labium, and sternum present nothing remark- 

 able in form or structure ; they are of the same colour as the cepha- 

 lothorax. 



The abdomen is rather elongate-oval in form, not very convex 

 above, and projects a little way over the base of the cephalothorax ; 

 its colour is black, clothed, but not very thickly, with short fine 

 hairs, and (in spirit of a wine) showing various minute pale spots and 

 fine lines. 



The female resembles the male in general form and characters as 

 well as in colour, but has no eminence between the eyes ; the form 

 of the epigyne and sexual aperture is peculiar (see fig. 12 e, Plate 

 XLL). 



