56 



AMAUROBIUS FENESTRALIS. 



Amatoobius fenestrate, Stroem, Beskr. ov. Norske Ins., 2 St., 

 in Dot Trondhiomsko Solsk Skrift iv., p. 

 362, pi. xvi., fig. xxiii. 

 Ciniflo atrox, Blaclcw., Spid. Great Brit, and Irel., p. 140, pi. 

 ix., fig. 88. 

 This spider is smaller than Amaurohius similis, but is very 

 nearly allied, and bears a considerable resemblance to it in 

 form, colours, markings, and structure 



It may, howevor, be readily distinguished, not only by its 

 smallor size, the male measuring but 8J lines or thereabouts in 

 longth, but by its brighter and more distinct markings ; the 

 dark marking on the forohalf of tho upper side of the abdomen 

 is black-brown, less broken and much more compact, and the 

 caput is also much darker. Tho radial joint of the male palpus 

 bears a general resemblance in its structure to that of A. similis, 

 but tho projection on tho inner side in front is not so long, loss 

 pointed, i.e., somewhat obtuse, paler coloured, and of a less spinous 

 appearance. 

 The female is larger, but resembles the malo in colours and 



markings. 



Found, but rarely, at Bloxworth, under stones and brickbats. 

 It is much moro abundant in tho North of England, as woll as 

 in Scotland and Wales, but is not (so far as I am aware) found 

 in houses or other buildings; or, at least, it occurs much less 

 frequently in such situations than A. similis. 



AMAUROBIUS FEROX. 



Ciniflo ferox, Walck, Blaclcw., Spid. Great Brit, and Irel., p. 

 142, pi. ix., fig. 90. 

 This is ono of our largest spiders, tho female often measuring 

 upwards of six lines in length and the male about four-and-a-half 



to five. 



It is found in cellars, under the floors of dwellinghouses, in out- 

 houses, as well as (out of doors) under largo stonos and logs of 



