220 BRITISH SPECIES OF FALSE-SCORPIONS. 



The palpi are long and slender ; the humeral joint is very 

 slightly longer than the cubital ; the pincers nearly as long as the 

 humeral and axillary joints together ; the bulb and claws are 

 equal in length, the bulb being, if anything, rather shorter than 

 the cubital joint. When looked at sideways the bulb is exactly 

 cylindrical i.e., equal in width throughout. 



The above description was made from Leach's type specimen in 

 the British Museum collection. Leach gives us its habitat as 

 " under the bark of trees." 



M. Simon, Arachn. de France, torn. 7, includes G. Hermannii 

 among the synonyms of Chelifer cancroides, Linn. ; but after care- 

 ful comparison of a typical French example of this latter, received 

 from M. Simon, it appears most probable that the two are distinct, 

 though very nearly alike. C. Hermannii is not only smaller, but 

 the palpi are of a distinctly longer slenderer form ; its habitat, 

 also " under the bark of trees," points to its specific difference. 



CHELIFER CANCROIDES. PI. B., fig. 12. 



Syn : Acarus cancroides, Linn, Faun. Suec., No. 1,968 (1761). 



Phalangium cancroides, Linn, Syst. Nat. Ed. xii., part 2, p. 

 1,028 (1767). 



Chelifer cancroides, Sim., Arachn. de France, torn. 7, p. 23 

 1879 (exclude reference to C. Hermannii, Leach). 



Length IJths to 2 lines. 



Ceplialothorax and palpi dark yellow-brown, legs and abdomen 

 paler. Similar in general form and appearance, and, as far as could 

 be observed, in the possession of clavate hairs, to C. Hermannii, 

 Leach ; but may be distinguished not only by its larger size 

 and darker colouring, but by the distinctly more robust form of 

 the palpi ; the bulb of the pincers is equal in length to the cubital 

 joint, the cubital joint is distinctly, though not very much, shorter 

 than the humeral. The present species, moreover, is found in 

 houses and outbuildings, among old rubbish, &c. ; while 

 C. Hermannii is found under the bark of trees. Four examples 

 are in the British Museum collection. Two of these were found in 



