354 Falconer : The Spiders of Yorkshire. 



V.C. 64. — Burley in Wharfedale, W. P. W. ; E. Keswick, numerous. 

 V.C. 65. — Sedbergh, T. Sheppard. 



Gen. Enoplognatha Pav., 1-2. 

 E. thoracica Hahn. 



A widely dispersed spider ; France and Central Europe, North 

 Wales, Scotland and Ireland ; in several English counties as far north 

 as Northumberland — ' frequent beneath stones in the hilly districts 

 of Cumberland and Westmorland,' Glamorgan and Carnarvon- 

 shire. Adult spring and autumn. First occurrence — T. Stainforth, 

 North Cave, April, 1908. 



V.C. 61.— North Cave, one 2, T. S. 



V.C. 62. — Coatham Marshes, one $. 



Gen. Robertus Camb., 3-5. 

 [Pedanjsielims Sim.) 

 R. ariindivieti Camb. 



A rare spider from two southern, three midland and three northern 

 English counties ; Paisley, Trossachs and Forres in Scotland ; 

 Mayo and Galway in Ireland ; Isle of Man, 1908 ; abroad from 

 Sweden, Holland, Bavaria, Hungary and Switzerland ; usually in 

 damp ground. Adult summer and autumn. First occurrence — 

 the author, Drop Clough, July, 1900. 



V.C. 62. — Coatham Marshes, one i^. 



V.C. 63. — Drop Clough; one ^. 



V.C. 64. — Adel Bog, one $ ; Ingleborough, one ^, between Clapdalc 

 and the first cairn. 

 R. lividus Bl. 



Common, and of Holarctic distribution ; beneath stones, amongst 

 vegetable debris and moss, and at the roots of herbage. Adult 

 throughout the year. First occurrence — the author, Slaithwaite, 

 April, 1897. 



V.C. 61. — South Cave, Sunk Island, Bridlington, Houghton Woods, 

 Spurn, Saltend, RipUngham. Holme-on-Spalding Moor, Branting- 

 ham, T. S. ; Sutton Drain, E. A. P. ; Dunswell, E. A. P., T. S. ; 

 Kelsey Hill, E. B. 



V.C. 62, 63, 64. — Plentifully and generally distributed. 



V.C. 65. — Upper Teesdalc, Y. N. U. 

 R. neglecius Camb. 



A rare spider ; Dorset, Essex, Staffs., Cumberland, Westmorland 

 and Northumberland ; Fermanagh, Ireland, one (J ; Paisley, 

 Fife and Midlothian in Scotland ; abroad, Noi'way, Holland, 

 France, Switzerland, North Italy, Croatia, Hungary ; at roots 

 of grass and among moss. Adult J's May to November. First 

 occurrence — the author, Slaithwaite, August, 1903. 



V.C. 61. — Birkhill Wood (Cottingham) two ^Js {Proc. Dorset Field 

 Club, 1908), Skidby Chalk Pits.one ^, T. S. 



V.C. 63. — Black Hills, Bingley, one (^, Cottingley Wood, one ^, 

 W. P. W ; Bottoms Wood, Slaithwaite, one ^ ; Drop Clough, one 

 ^, one 9 ; Barrett Clough, Wilberlee, one (^. 



V.C. 64.— Grassington, one ^, Howden Ghyll (Keighley), one (^, 

 W. P. W. : Bardon Tower (Bolton Woods), by the roadside, one ^ ; 

 Rigton, near Keswick, one ^ ; Stubbing Moor, one (^. 



[To be coniinued)i 



Dr. J. W. Evans writes on 'The relation between different laws of 

 twinning that result in the same twin-crystal,' and Dr. H. Hilton writes 

 ' On Cleavage-angle in a random section of a crystal ' in The Mineralogical 

 Magazine for August. 



Naturalist, 



