BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 207 



GENUS ANELASMOCEPHALUS, Sim. 



Form oval, convex ; much narrowed and depressed in front ; 

 seventh upper segment of abdomen, slightly curved, and placed 

 vertically on the posterior truncation. The eighth is brought 

 round to the ventral surface, and is straight, strongly curving 

 round the anal plate. Hood small, projecting forward, obtusely 

 indented in front, furnished on the anterior edge with numerous 

 long strong spines. 



Palpi short. Legs moderately long, strong. Tarsi of the first and 

 second pairs consist of three articles, and of four on the 3rd and 

 4th pairs of legs ; terminal claws almost equal in length ; those of 

 1 and 2 least strong. The femora are abruptly narrowed at the base. 



One species only is known in Great Britain. 



ANELASMOCEPHALUS CAMBRIDGII. 

 PL E, fig. 29. 



Trogulus Cambridgii, Westw. (1874), Thes. Ent. Oxon, p. 202, 

 PI. 37., f. 6. 



Length 1J to If lines. 



The whole of this curious arachnid is of a dark brown colour, 

 sometimes nearly black, but it is so generally covered and disfigured 

 by dirt that it is not always easy to trace clearly all the different 

 points of structure. 



The eyes are on each side of the hood near the anterior margin of 

 the cephalothorax ; the spines or tuberculous denticulse on each side 

 in front of the hood are strong and curved. The legs, except the 

 tarsi, are thickly clothed with strong tuberculous denticulse 

 terminating with long bent bristle-like points. The particles of the 

 dirt among which these animals live clog up the spiny armature 

 of the legs, and greatly obscure it. Among these spines are 

 numerous ordinary hairs and bristles. 



This species was first discovered by myself at Bloxworth in 1873 

 among moss and debris, and was shortly after described and figured 

 by J. 0. Westwood, Esq., M.A., Hope Professor of Zoology, Oxford. 

 I have since occasionally met with it at various seasons of the year 



