446 Families, Genera and Species of British Spiders, etc. 



(3) Gen. Ronciis. 



A. Humeral joint of palpus equal in length 



to the cubital joint ; and the limbs of the 

 ■forceps equal to the bulb ; eyes rather 

 more than one diameter from the fore 

 margin of the cephalothorax camhridgii L. Koch. 



B. Humeral joint of palpus clearly longer 



than the cubital ; and limbs of forceps 

 longer than the bulb ; eyes \ diameter 

 from the fore margin of the cephalothorax lubvicus l^. Koch. 

 {4) Gen. Chelifer. 



A. Hairs simple. Clear reddish forceps and 



reddish extremities of femoral and 



cubital joints of palps characteristic . . latveillii Leach. 



B. Hairs clavate. 



I. Palpi stout. 



1. Limbs of forceps much shorter than 



the bulb ; hairs on palpi mostly 

 obtuse, some clavate ; caput and 

 thorax (from front to back) about 

 equal in width ; palpi longer and 

 less strong 



2. Limbs equal to the bulb ; hairs all 



clavate ; caput broader (from front 

 to back) than the thorax ; palpi 

 shorter and stronger 



II. Palpi long and slender ; bulb equal in 



length to the cubital joint which is 

 clearly but not greatly shorter than 



the humeral joint 



■(5) Gen. Chernes. 

 A, Hairs simple. 



I. Posterior segment of the cephalothorax 



with a deep impression. Limbs of 

 forceps visibly shorter than the bulb . . 



II. Posterior segment of cephalothorax 



without a depression. 



1. Size smaller, 2 mm. ; bulb dis- 



tinctly longer than broad, and equal 

 in length to the limbs of the forceps ; 

 palpi strong. 



(a) Cephalothorax mostly smooth and 



glossy. Abdomen minutely shag- 

 reened. Cubital joint and bulb 

 of palpus, particularly above and 

 below, smooth and glossy . . nodosus Schr. 



(b) Cephalothorax granulated. Ab- 



domen coarsely shagreened. 

 Cubital joint and Inilb more 

 granulated chyzeri Tomos. 



2. Size larger, 3 mm. ; bulb nearly or 



quite as long as broad, and a little 

 longer than the limbs of the forceps ; 



palpi much stronger insuetiis Camb. 



"B. Hairs clavate. 



I. Bulb very much swollen, but slightly 

 longer than broad, and about equal in 

 length to the limbs of the forceps . . cimicoides Fabr. 



* C. heymanii Leach. (Cambridge's ' British False Scorjiions,' p. 219) is 

 the young of this species. 



Naturalist, 



uibriibey Sim. 



meyidianns L. Koch 



cancroides Linn.* 



cvyneus L. Koch. 



