20 Mr. J. Blackwall on the Structure, Functions, (Economy, 



pared with Linyphia marginata, it will immediately be seen how 

 easy the transition is from the genus Linyphia to that of Neri'ene. 



124. Neri'ene bicolor. 



Neri'ene bicolor, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 

 vol. iii. p. 344 ; Research, in Zool. p. 366. 



Neri'ene bicolor is common in many parts of England and 

 "Wales. It appears to prefer well-wooded districts, constructing 

 among grass a snare similar to that of Neri'ene marginata. Not 

 unfrequently it may be found on rails or concealed under stones 

 partially imbedded in earth. The male has the palpal organs 

 developed in autumn. 



125. Neri'ene rufipes. 



Neri'ene rufipes, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 

 vol. iii. p. 345 ; Research, in Zool. p. 368. 



Specimens of this spider were obtained in 1832 under stones 

 and on rails in the township of Crumpsall. In June the female 

 fabricates several globular cocoons of yellowish white silk of a 

 slight texture, which she attaches to the inferior surface of 

 stones ; the largest of them measures ^th of an inch in diameter, 

 and contains about 50 spherical eggs of a yellowish white colour, 

 not adherent among themselves. 



126. Neri'ene livida. 



Neri'ene livida, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 

 vol. viii. p. 486. 



Mr. J. Hardy forwarded to me from Berwickshire, in December 

 1848, an adult male of this species, which is plentiful in the val- 

 ley of the Conway, where it conceals itself under stones. In July 

 the female spins several globular cocoons of white silk of a slight 

 texture, attaching them to some depression in the stone selected 

 for her retreat ; the largest of these cocoons measures |th of an 

 inch in diameter, and comprises about 30 spherical eggs of a pale 

 yellowish white colour, not agglutinated together. 



127. Neri'ene furva. 



Neri'ene furva, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 

 vol. viii. p. 486. 



One adult male is the only specimen of this spider that I have 

 seen ; it was discovered under a fragment of rock in a wood at 

 Oakland in June 1835. 



128. Neri'ene errans. 



Neri'ene errans, Blackw. Linn. Trans, vol. xviii. p. 643. 

 Argus errans, Walck. Hist. Nat, des Insect. Apt. t. iv. p. 511. 



