BRITISH SPECIES OP FALSE-SCORPIONS. 219 



the extra joint (trochantin Sim.) is found in all four pairs. The 

 eyes, two in nnmber, are of tolerable size, of a flattened form and 

 opaque appearance, situated close to the fore corners of the caput. 



Five species of this group have been met with in England 

 Clielifer Hermannii Leach, Chelifer cancroides Linn, C. meridianus 

 L. Koch, C. subruber E. Sim, and G. Latreillii Leach. 



The species may be distinguished shortly as follows : 



a. Hairs clavate. 



i. Palpus long, slender. 



a' Cubital joint of palpus very slightly, if at all, shorter 

 than the humeral ; .palpi of a very attenuated 

 form. C. Hermannii Leach. 



a" Cubital joint distinctly (but not greatly) shorter 

 than the humeral, and palpi generally stouter. 



C. cancroides Linn, 

 ii. Palpus robust. 



a' Claw of pincers equal to the bulb in length ; hairs on 



palpi generally clavate. C. meridianus. 



a" Claw of pincers shorter than bulb ; hairs on palpi 

 mostly obtuse, if any clavate. 



C. subruber Sim. 



b. Hairs simple (not clavate). 



C. Latreillii Leach. 



CHELIFER HERMANNII. PI. B, fig. 11. 



Syn : Clielifer Hermannii, Leach. Zool. Miscell. 3, p. 49, pi. 

 142, fig. 3. 



Length, IJrd lines. 



Colour, yellow-brown ; the ceplialotliorax rather the darkest, the 

 legs and palpi palest. The eyes are in the normal position. The 

 Cephalothorax is divided into three portions, the two anterior of 

 which are of nearly equal width; the posterior part half the width 

 of the middle portion. The constrictions between these parts are 

 moderately strong. The abdominal plates are furnished with short 

 clavate hairs. The hairs had been rubbed off the cephalothorax 

 and palpi. 



