254 BRITISH TYKOGLYPHID^E. 







pair, much longer and passing the hind margin of the 

 abdomen, is placed between the ninth pair of peri- 

 pheral hairs, and are much nearer together than the 

 first notogastral pair. Further back are the remaining 

 three pairs placed in echelon, each pair being further 

 back and nearer to the median line of the body than 

 the pair before it ; they are also shorter, as they are 

 inserted further back, so that although the proximal 

 ends are retrogressive, yet the distal ends extend about 

 equal distances behind the posterior margin. 



Rostrum not usually visible from the dorsal aspect ; 

 mandible (PL XI, fig. 1) tridentate on the fixed, and 

 bidentate on the moveable arm of the chela.* 



Body. Abdomen raised in the middle, depressed 

 laterally. The wart-like projections show all along 

 the edge. Bursa copulatrix not so long as the corre- 

 sponding organ in G. Canestrinii. Vulva wide, placed 

 between the epimera of the third pair of legs, slightly 

 chitinized. Sternum well marked but short ; epimera 

 of the first pair of legs joined to it ; the inner ends 

 of the other epimera free. 



Legs rather longer in proportion than those of G. 

 Canestrinii; all pairs of nearly equal thickness; 

 caroncles large and rounded. There is a slight 

 chitinized ridge in the upper median line of the tarsi of 

 the first and second legs. 



MALE. 



The male is smaller and more active than the female. 

 The number and arrangement of the pectinated hairs 

 are much the same as in the female (there is one pair 

 less on the notogaster), but they are not all quite so 

 peripheral as those of the female. The hairs (PI. XI, 

 tig. 6), however, are mostly somewhat longer in 

 proportion, and the barbs or pectinations are far less 

 deep than those of the female ; all the body hairs of 



* Berleae draws the moveable arm rather more elaborate, with some 

 additional minute teeth, which I have not seen, but it is probably 

 drawn from the male. 



