SPIDERS MIMETID/E Spiders of this family are similar in general respects to the Theridiidtt, having eight eyes and three tarsal claws. The species of Era construct a small brown pear-shaped or cylindrical egg-cocoon suspended on a fine silken stalk. 147. Era furcata (Villers). Rroxted. This spider is known also as E. thoracica and Thtridion variegatum t Blackwall. DICTYNID^E 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) arc present in all members of the family. They construct a tubular retreat with an outer sheet of webbing, which is covered with a flocculent silk made with the calamistrum from threads furnished by the cribellum. 148. /4maurobiusfenestra/is(Stroem). 151. Dictyna arundinacea (Linnaeus). Not so common as simi/is. Known also Epping Forest (O. P.-C.). as Ciniflo atrox, Blackwall. Abundant. Known also as Ergath btnigna, 1 49. Amaurobiui similis (Blackwall). Blackwall. Epping Forest ; Broxted. 152. Dictyna uncinata, Thorell. Common. Known also under the name Epping Forest (F. P. S.). Ciniflo. !53. Dl ct y na l atens (Fabricius). 150. Amaurobiw ferox (Walckenaer). Epping Forest (O. P.-C.). Snaresbrook ; Broxted. N ot common. Known also under the Common. Known also under the name name Ergatis. Ciniflo. CHERNETES CHELIFERID^ Out of the twenty species of false scorpions hitherto recorded as indigenous to Great Britain only two have been taken in this county. 154. Cheiridium muscorum, Leach. 156. Obiiium simile, L. Koch. ' Forest School,' Wanstead (O. P.-C.). Epping Forest (O. P.-C.). 155. Cthonius rayi, L. Koch. Epping Forest (O. P.-C.). OPILIONES The harvestmen are spider-like creatures with eight long legs, the tarsi very long and 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. 157. Phalangium opilio, Linn. 160. Oligolophus epkippiatus, C. L. Koch. Epping Forest (O. P.-C.). Epping Forest (O. P.-C.). 158. Phalangium parietinum, De Geer. 161. Nemastoma lugubre (O. F. Mullcr). Epping Forest (O. P.-C.). Epping Forest. 159. Phalangium saxatile (C. L. Koch.). 162. Liobunum rotundum (Latreille). Epping Foreit. Epping Forest. 203
