NORTHUMBEKLAND AND DtJEHAM. 81 



Bathyphantes gracilis, (BL). 



Linyphia gracilis, Blackwall. Op. cit.,^.2i5, pi. XYII., fig. 163. 



,, circimspecta, ,, ,, p.246,pl.XVII.,fig.l65. 



Bathyphantes gracilis, Pickard-Carnbridge, F. 0. Ann. and 



Mag. Nat. Hist., Ser. 6, vol. X., p. 393, 



pi. XXI., figs. 6 a, b, c, d. 



jST. Langleyford, adult male and females ; Bardon Mill, Holy- 

 well Dene. D. Durham, Upper Teesdale, Urpeth. Fairly com- 

 mon among the tufts of herbage in damp places. 



PORRHOMMA, (Sim). 



Porrhomma pygmaeum, (BL). 



Nerienepygmaea, Blackw. Op. cit., p. 261, pi. XVIII., fig. 177. 

 Porrhomma pygmaeimi, Pickard-Cambridge, F. 0. Ann. and 

 Mag. I^at. Hist., Ser. 6, vol. XIII., pi. II., fig. 3. 

 N. Cold Martin Moss, Wooler. D. Durham, adult males. 



Porrhomma microphthalmum, (Cb.). 



Linyphia microphthalma, Cambridge. Linn. Soc. Trans., vol. 



XXYII., p. 435, pi. LYI., fig. 25. 

 ,, decens, Cambridge. Linn. Soc. Trans., vol. XXYII. , 



p. 437, pi. LYL, fig. 27. 



Porrhomma Meadii, Pickard-Cambridge, F. 0. Ann. and Mag. 



jS'at. Hist., Ser. 6, vol. XIIL, pi. IL, fig. 7. 



Neriene errans, Trans. TynesideNat. Field Club, vol.Y.,p. 49. 



N. Cheviot Hill, one adult female. D. Males and females 

 were sent to Dr. Mead of Bradford from Pelton coal-pits, near 

 Chester-le-Street, in 1860. They had probably been conveyed 

 down the shaft among the horse-fodder, and lived gregariously 

 in a common web. 



Porrliomma (?) contritum, (Cb.). 



Linyphia contrifa, Cambridge. Linn. Soc. Trans., vol. XXYIII., 



p. 537, pi. XLYL, fig. 7. 



N. Cheviot Hill, an adult male. One of Mr. Hardy's addi- 

 tions to Science, October, 1871. I have never seen this Spider. 



