202 BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 



The margins of the cepJialotJiorax are rather strongly and roundly 

 indented, and armed with small tubercles and denticulse. The 

 centre of the fore part of the caput is raised in a kind of 

 longitudinal ridge, which has at its fore margin three strong 

 denticulse of equal length close together in a transverse line and 

 directed forwards, behind these are 2 4 very small denticulse. 



The eye-eminence is small, and the denticulse surmounting it are 

 very minute. 



The abdomen has only a few very minute denticulse or tubercles 

 on its segments. The dorsal band is distinct, of a darker hue than 

 the rest, and bordered with strongish marginal spots or irregular 

 blotches of brown to blackish, it is slightly angular in the middle, 

 constricted just behind the thorax, and abruptly and squarely 

 truncated at its posterior extremity. At the fore extremity it runs 

 on to the thorax, but not very distinctly. In the abdominal 

 pattern there is a strong resemblance to 0. epphippiatus, which 

 is, however, a very much smaller species. 



The legs are rather short, 2, 4, 1, 3, tolerably strong, of a dull 

 brownish-yellow hue mottled with whitish and somewhat obscurely 

 annulated with reddish brown. They appear to be furnished with 

 minute hairs, but are quite destitute of armature, except the ex- 

 inguinal joints, which are furnished with small tubercles or blunt 

 denticulse. 



Palpi short, rather strong ; the cubital joint is considerably 

 shorter than the radial. 



This is a rare species in Great Britain. I have found it at 

 Hursley, near Winchester, and at Corfe Castle, Dorset, and have 

 received it from Isleworth (from Mr. Fenn), also from Gloucester- 

 shire, and one or two other localities. It appears to be restricted to 

 chalk or lime-stone districts. Mr. Meade received it from Leicester- 

 shire. Its size as well as the greater strength and forward direction 

 of the three characteristic spines on the fore-margin of the caput 

 will serve to distinguish it at once from all our other known species. 



Following Dr. L. Koch, Mons. Simon included this species in 

 the genus Acantholophus, but I can find no good characters by 



