BRITISH SPECIES OP FALSE-SCORPIONS. 211 



and behind ; being in fact almost exactly square. The anterior eye 

 on each side is rather the largest, and is close to or not more than 

 half a diameter's distance from the fore-margin of the caput ; the 

 interval between the eyes is no more than, if quite as much as a 

 diameter of the anterior eye. The claws of the pincers are straight 

 and a little longer than the bulbous portion. This part is rather 

 narrow, and is constricted or pinched in just behind the base of 

 the fixed claw, furnishing a strong and readily seen distinguishing 

 specific character. 



I have met with this species, though rarely, among moss and 

 dead leaves in woods at Bloxworth and in the neighbourhood, and 

 also under pieces of rock and stones at Portland ; I have received 

 it also from Hoddesdon in Hertfordshire, where it was found by 

 Mr. F. M. Campbell, of Kose Hill, in 1887. 



CHTHONIUS TENTHS. PI. A, fig. 17. 



Syn : Chthonius tennis L. Koch. Darst. Eur. Chernet, p. 51, 



1873, E. Simon Aran. de France, 

 torn. 7, p. 72. 

 Cambr. : "The Naturalist," 1884, 



No. 113, p. 103. 



Length from f ths of a line to 1^ lines. 



The colour of this species is yellowish-brown, the bulbous portion 

 of the pincers being black-brown, and furnishing a readily seen 

 character for distinguishing this from either of the other known 

 British species. The ceplialothorax is distinctly but not much 

 wider in front than behind, and the sides are very nearly straight. 

 The eyes are rather large ; the anterior eye on each side is scarcely 

 half a diameter's distance from the fore-margin of the caput, 

 and the interval between the anterior and posterior eyes is equal to 

 or a little greater than a diameter. The claws of the pincers are 

 double the length of the bulb and very slightly curved. 



This easily distinguished species has been met with though very 

 rarely among moss and dead leaves in woods at Bloxworth, and in 

 the adjoining district, at various seasons of the year. 



