145 



WALCKENAERA DICEROS. 



"Walokenaeea diceeos, Cambr., Trans. Linn. Soc. xxvii., p. 454, 

 pi. 57, No. 39. 



This very remarkable and distinct little spider is the smallest 

 yet known of the order Araneidea, measuring no more than 

 1 -25th of an inch in length. 



The fore part of the cephalo-thorax is broad and bluff, but has 

 no distinct elevation ; two little, sharply bent, horn-like, black 

 processes, not far from each other in a transverse direction, issue 

 from small tubercles near the middle of the area enclosed by 

 the four pairs of eyes ; these horns are apparently composed of 

 several pairs of confluent black bristles ; and from behind each 

 lateral pair of eyes a long, deep, indentation runs obliquely back- 

 wards. Tho cophalo-thorax is pale yellow-brown with a narrow 

 black margin. The legs and palpi are tinged with reddish, and 

 the abdomen is dull brownish-black. The radial joint of the 

 palpus has, in front on its inner side, a long prominent projection 

 the extremity of which is rather obliquely truncated ; and the palpal 

 organs have a strong black spine curved round their fore 

 extremity in a circular form. 



Very rare ; two examples of each sox, found among moss in 

 woods at Bloxworth, are all that I have met with during four- 

 teen years, in spite of many a long and wearisome search for it. 



WALCKENAERA SAXICOLA. 



Walokenaeea saxicola, Cambr., Ann. and Mag. N.H., June, 



1861, and Blachv., Spid. Great Brit, and 



Irol., p. 311, pi. xxi, fig. 226. 



The adult male measures rather less than 1 line in length. 



The cephalo-thorax is of a dark brown colour, the legs and 



palpi pale yellowish-brown, with the tibise of the first and 



second pairs dark brown, and the abdomon brownish-black. 



The upper part of the caput is slightly and obtusely elevated, 



and behind it is a transverse dip or depression, giving a notched 



