418 Rev. 0. P. Cambridge on a new Spider from Calcutta. 



Legs long, slender; relative length 4, 1, 2, 3 ; those of 

 the first and fourth pairs greatly the longest. The meta- 

 tarsi are of moderate comparative length. The tibiee short ; 

 their colour is pale yellowish, the femora and tibise of the 

 iirst pair dark yellow-brown ; the tibise of the second pair 

 pale yellow-brown ; they are furnished with hairs only. The 

 palpi are short, yellowish ; the terminal tarsal claw is 

 rather long, slender, and sharply bent downwards from its 

 base. 



Falces small, straight, furnished with bristles in front. 



Maxilloi moderately long, rather broadest towards their 

 extremity (where they are obliquely truncated), and a little 

 inclined towards the labium ; they are furnished with some 

 black bristly hairs, those on the inner margin of each being 

 the strongest and directed towards each other. The labium 

 is small, short, and of a somewhat truncated form. The 

 colour of the falces, raaxillse, and labium is similar to that of 

 the legs. 



The sternum is of a very elongate heart-shape or subtri- 

 angular, its hinder extremity produced between the coxae of 

 the fourth pair of legs into a truncated point. Its colour is 

 like that of the maxillae. 



The abdomen is of a cylindrical form, its posterior extre- 

 mity produced into a long, tapering, caudal appendage, the 

 length from the spinners to the extremity being at least four 

 times that from the spinners to the cephalothorax ; it is of a 

 whitish-yellow hue, with, on the upperside, a central longi- 

 tudinal silvery line, on each side of which is a yellow-brown 

 stripe, deepening into dark brown at the hinder extremity ; 

 the sides of the posterior half of the tail are marked with 

 short transverse (or perpendicular) dark streaks. The extre- 

 mity of the tail is sharp-pointed and is clothed with a short 

 dark pubescence. The spinners are short, those of the ante- 

 rior pair strongest. The genital aperture is of characteristic 

 form, being somewhat oblong- oval, divided by a narrow 

 longitudinal septum. 



Like some others of a nearly allied genus {Argyrodes) this 

 part of the structure was clogged with a kind of resinous 

 looking secretion. 



The example from which the above description has been 

 made was kindly sent to me by Mr. D. D. Cunningham, by 

 whom it was found in the Botanical Garden at Shilpur, Cal- 

 cutta. Its colour when alive is stated to have been vivid green. 

 This I conclude applies to its prevailing hue, which has since 

 gone off (as so commonly is the case with green spiders) into 

 dull yellowish. I should, however, suppose that a close 



