POSTSCRIPT. 



Descriptions and notices of sevoral interesting spiders are here 

 subjoined. Some of them have been" very recently met with 

 either in Dorsetshire or Britain ; f our are new to science, and 

 two were accidentally omitted from Appendix B. Their sys- 

 tematic position may be seen by reference to the list of species 

 contained in the whole work. 



GENUS DICTYNA, Sund. 

 DICTYNA VIBIDISSIMA. 



Dictyna vieidissima, Walok. E. Simon, Arachn. de France I., p. 

 183, and Cambr., Ann. and Mag, N. H., 

 September, 1879, ser. 5, vol. iv., p. 210. 



Adult male, length 2 lines. 



Cephalo-thorax reddish yellow-brown with a narrow somewhat 

 irregular, yellowish marginal border, and thinly clothed with 

 coarse white hairs, for the most part arranged in longitudinal 

 lines. 



Legs pale greenish yellow-brown ; 1.2.4.3; rather slender, 

 moderately long and furnished with hairs only, and (the female) 

 with calamistra on the metatarsi of the fourth pairs. The 

 maxilla), labium, and sternum (which last is clothed with coarse 

 white hairs) are rather paler than the cephalo-thorax, the falces 

 being of the same colour. 



The abdomen is of a greenish hue, thinly clothed with short 

 pale hairs, and changing to a dull yellowish-white after immersion 

 in spirit of wine. In both sexes the supernumerary spinning 

 organ common to the family is present. 



