52 ON NEW AND RARE ARACHNIDS. 



Cephalothorax. The fang is strong, of a simple curved form, 

 and tapering regularly to its point. 



Maxillce moderate in length, straight, slightly rounded at 

 the extremity on the outer and obliquely truncate on the 

 inner side, and a little inclined to the labium. 



Labium about half the length of the maxillae, broader than 

 long, and truncate at its apex. 



Sternum short, heart-shaped. These parts are similar in 

 colour to the Cephalothorax, or perhaps a little paler. 



Abdomen oval, of a dull, light-brown colour, covered thinly 

 with short fine hairs, and, apparently, with a short paler kind 

 of pubescence. A longitudinal rather tapering central bar of 

 greater or less size marks the position of the dorsal- vessel on 

 the fore part of the upper side, and is bare and of a coriaceous 

 texture ; its colour being yellowish brown. The under side 

 is paler than the upper, and a little way in front of the spinners 

 is a curved transverse fold of the epidermis, which has every 

 appearance of perforation, and perhaps leads to some 

 spiracular tubes, somewhat like that in the genus Anyph&na. 



Two adult males of this spider have been sent to me from 

 the Royal Gardens at Kew, found in one of the plant houses. 

 It is, no doubt, an importation from some exotic region ; the 

 genus to which it belongs being found dispersed among exotic 

 regions generally. The examples now recorded were kindly 

 examined by Mons. Eugene Simon, to whom their species was 

 unknown. 



Leptyphantes beatula, sp.n. p. 39. PL A, figs. 8-11. 



Adult male, length rather less than 1 line. 



The whole colouring of this spider had still to be developed, 

 as the specimen had evidently only recently made its final 

 mould, and was, therefore, of a pale almost colourless hue. 

 The ocular area, however, was suffused with black, the eyes 

 being seated on black tubercles. The interval between the 

 eyes on the hind-central pair is greater than that between 

 each and the lateral eye next to it. The eyes form a very 



