634 ^Ij'. S. Hirst on new OpUiones from 



similar granule on its ventral surface. Femur only with a 

 conical setiferous granule, which is situated near the proximal 

 end below. Patella quite smooth and without either granules 

 or processes. Tibia and tarsus strongly armed. Tibia with 

 three spines on its inner side, the first and second being 

 long, but the apical one shorter ; on the outer side it has four 

 spines, the second one from the proximal end being the longest 

 and the first one next in size ; several much smaller spines are 

 placed in the middle of the ventral surface. Tarsus with four 

 spines on each side, but those of the apical pair are very- 

 small, especially the one on the outer side, which is practi- 

 cally obsolete. (Fig. 3.) 



Pseudobiantes japonicns, sp. n. External view of pnlp. 



Legs. — Number of tarsal segments 8, 17-19, 7, 8. 



Measurements in mm. — Total length 3'5; length of palp 

 (from base of femur) about 6, of first leg 9*0, of second 14:'75, 

 of third 11, of fourth 14*75. 



Colour. — Ground-colour whitish. Cephalothoracic area of 

 scutum marked with a broad median fuscous band and also 

 with a dark marginal line on each side; abdominal segments 

 of the scutum (with the exception of the last one) dark at the 

 sides but pale in the middle; the two anterior free segments 

 are also darkened at the sides, but the last has only a dark 

 spot in the middle. Anal operculum whoUj' dark ; the rest 

 of the ventral surface whitish. Proximal segment of cheli- 

 cera and the base of the second segment slightly darkened 

 dorsally. Femur and patella of palp slightly darkened at 

 each end ; the tibia and tarsus rather deeply infuscate (dark 

 grey) and contrasting rather strongly with the other segments 

 of the appendage. The principal markings of the legs are as 

 follows : — Femora somewhat darkened at the distal end ; 

 patellae usually entirely greyish above ; tibire at least with a 



