208 BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 



in the same district, as well as under stones and rocks at Portland. 

 It has also been sent to me from Ventnor, Isle of Wight, by 

 Mr. Pearson, and from Cornwall by Mr. A. J. Michael. It must, 

 however, I think, at present, be looked upon as one of our rarer 

 arachnids. It is more abundant in France, where it has been since 

 discovered by M. Simon (Arach. de France vii., p. 299), and it is 

 also found in Germany. 



GEN: TROGULUS Latr. 



Body oval, depressed, narrowed in front. The two posterior 

 segments of the abdomen turned under upon the ventral surface 

 and bent round the anal plate. Hood oval, rounded or conical, 

 formed of two stout plates, curved, and soldered together at the top, 

 their inner edge armed with closely set tuberculous spines, hiding the 

 interval between them ; their outer edge is broad at the base and 

 cut away vertically. Eyes, widely separated. Palpi furnished with 

 either simple or claviform hairs, of moderate length ; radial much 

 longer than the cubital joint. Legs short, strong, with a false 

 articulation at the base of the femora. Tarsi of the 1st and 2nd 

 pairs of legs 2-jointed, of the 3rd and 4th pairs 3-jointed. Claws 

 of 3 first pairs, long and strong, and much curved, that of the 2nd 

 pair much smaller. 



Of this genus only one species has as yet been met with in 

 Great Britain, and that in the immature state. 



TROGULUS TRICARINATUS, Linn. 

 PI. E, fig. 28. 



Length of an immature example rather over 1 line (that of the 

 mature form being about 2J lines). 



The form of this immature specimen is somewhat oblong-oval 

 rather rounded behind, its colour bright violet-purple. The line 

 of junction of the thorax and abdomen is indicated by a strong 

 groove. The hood is represented by a strong prominence on the 

 forepart of the caput divided into two parts, or blunt horn-like 

 projections, in front, with an eye at the base of each projection ; 



