210 BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 



PLATYBUNUS. Short oblong-oval. Abdomen smooth or nearly 

 so. Eye-eminence, large, crested with blunt 

 clenticulse. Palpi spinous. 



MEGABUNUS. Short-oval. Abdomen smooth. Eye-eminence large, 

 crested with long, strong, sharp spines. Legs 

 furnished with a pair of spines at the anterior 

 extremity on the upper side of the femora 

 and genuae. Palpi strongly spinous. 



OLIGOLOPHUS, Oval. Abdomen either nearly smooth or fur- 

 nished with fine denticulae ; rarely with rather 

 strong blunt ones. Eye-eminence small, crested with 

 minute to strong denticulae. Centre of anterior 

 part of caput furnished with a group of spines, 

 of which three form a straight, or nearly straight, 

 transverse row near or close to the margin. Legs 

 with femora more or less denticulated, but no 

 false joints in the metatarsi of the first pair. 



NEMASTOMA. Short-oval. Junction of thorax and abdomen only 

 evidenced by a slight grooved line ; the thorax 

 forming with the first 5 segments of the abdomen 

 a large shield or scutum. Abdominal segments 

 bordered with blunt tubercles or denticulate 

 processes. Ceplialotliorax without lateral pores. 

 Eye-eminence crested with blunt tubercles similar 

 to those on the abdomen. Palpi long and slender. 



ANELASMOCEPHALUS. Elongate, oblong-oval ; narrow, and 

 depressed in front ; last abdominal segment turned 

 under upon the ventral surface and strongly 

 curved round the anal plate. Eyes on a 

 hoodlike eminence, which projects over and 

 covers the mouth parts. Tarsi of the legs 

 divided into 3 articulations in the first and second 

 pairs and 4 in the third and fourth. 



TROGULUS. Two last abdominal segments turned under upon the 

 ventral surface and surrounding the anal plate. 



