SPIDERS DICTYNID^ The spiders belonging to this family possess three tarsal claws, and the eyes, eight in number, situated in two transverse rows, the laterals being in contact. The cribellum (or extra pair of spinning organs) and the calamistrum (a row of curving bristles on the protarsi of the fourth pair of legs) are present in all members of the family. They construct a tubu- lar retreat with an outer sheet of webbing, which is covered with a flocculent silk made with the calamistrum from threads furnished by the cribellum. n6. Jmaurobius similis (Bhckwall). 117. Jmaurobius fercx [WalckenAer). Tunbridge Wells (T. R. R. S.). Beckenham. A very common species in greenhouses, ,^ "^^^".^ ^^T T"" ,f '"^ ^"" T'*" stables and other outhouses. The males ma; P^^^^ /"^^k.ngs, found m cellars and also be- neath rocks and stones on the coast or m often be found wandering above the walls of . r , , ■ , dwelling-houses after nightfall. Known also "'"'' f ^'f' J" '^' °.P^" ^"""y- under the name Cinijlo. ^"°^" ^'^° ""'^^ '^^ "^'"^ ^'"'>- n8. Dictyna uncinata, Thorell. Tunbridge Wells (T. R. R. S.). CHERNETES CHELIFERIDiE Out of twenty species of false scorpions hitherto recorded as indigenous to Great Britain only two have been taken in this county. That this small number is simply due to lack of investigation may be gathered from the fact that fourteen species of the order have been taken in the county of Dorset. The various species can usually be found amongst moss and dead leaves or beneath stones and the bark of trees. They are unmistakable on account of their possession of a pair of forcipated palpi, like those of the true scorpion. These are usually extended wide open when the Arachnid is alarmed while it hastens backwards to take shelter. In spite of this scorpion-like appearance these little creatures are much more nearly allied to the mites or Acaridea. 119. Chelifer latrei/lii, Leach. I20. Cherries insuetus, O. P.-Cambridge. Sandwich (Matthews) ; Deal (W. F. Bland- Dover (W. P. Haydon). ford). This species, found amongst the refuse in an oil mill, has been taken in no other locality British or continental. OPILIONES The harvestmen are spider-like creatures with eight long legs, the tarsi long and very flexible. Eyes simple, two in number, situated on each side of an eye eminence. Body not divided into two distinct regions by a narrow pedicle, as in spiders. Abdomen segmentate ; breathing apparatus consisting of tracheal tubes connected with external stigmata beneath. 121. Phalangium parietinum, De Geer. 122. Nemastoma lugubre (O. F. Muller). Yalding. Tonbridge. 235
