BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 203 



which to distinguish it from Oligolophus. The name Acantholophus 

 would be in any case quite a misnomer even if the genus to which 

 this species belonged were distinct from Oligolophus, inasmuch as 

 the eye-eminence is surmounted by only very minute spines or 

 denticulee, far less conspicuous in fact than in some others of the 

 genus Oligolophus. 



FAMILY NEMASTOMATID.E. 



The cephalothorax has no transverse folds behind the eye- 

 eminence, but is soldered into one piece with the anterior segment 

 of the abdomen. The anal plate is formed of four portions ; the coxse 

 of the legs are free, their anterior edges furnished with rows of denti- 

 culse. The second pair of legs have no maxillse attached to them. 

 Palpi long, simple, digital joint much shorter than the radial and 

 cubital joints, and without any terminal claw. The small supernu- 

 merary joint between the exinguinal joints and femora is wanting.* 



Only one genus is known of this family. 



GENUS NEMASTOMA, C. Koch (1839). 

 General form, short oblong-oval. Eye-eminence very near the 

 anterior margin of the caput. No lateral pores ; Falces small. 

 Epistoma in form of a sharp pointed or else rounded tubercle. 



Palpi at least twice the length of the body. Legs in some 

 species long and slender, sometimes excessively so, in others shorter 

 and stronger. 



NEMASTOMA LUGUBRE. 

 Phalangium lugubre, 0. F. Muller (1776). 

 Nemastoma bimaculatum, Fabr. (Meade, 1855). 



PL E, fig. 26. 



Female, length 1J to 2 lines ; male, 1 to 1J lines. 

 General colour black or deep blackish-brown, with two 

 conspicuous somewhat oblong, white or cream coloured, often 

 silvery, geminated spots in a transverse line at the hinder margin 

 of the cephalothorax. The cephalothorax is, however, scarcely 

 marked from the abdomen, of which last, in fact, all except the 

 last 3 segments are soldered together. 



* See Addenda, postea. 



