636 On new Opiliones from Japan &c. 



size. First (proximal) tooth of the row of five teeth which 

 is present on the edge of the immovable finger a little larger 

 than the others, which are verj minute. ^lovable finger 

 without any distinct tooth at its proximal end, only a slight 

 low lobation being present there ; distally it is armed with a 

 row of four teeth, the first one of them alone being of large 

 size. 



Palj). — A conical granule is present on the dorsal surface 

 of the trochanter and two minute granules below. Femur 

 with only one or two microscopic granules on its dorsal 

 surface ; near the proximal end of its ventral surface there is 

 a sh.ort process, and a longitudinal series of minute granules 

 is also present below. 



Leffs. — Number of tarsal segments 5, 19, ?, 9. 



Measurements in mm. — Total length 4*5 ; length of first 

 leg 10"25. of second 17"25, of third ?, of fourth 17*5. 



Note. — The differences in the structure of the chelicera are 

 certainly due to sex, and the presence of a row of minute 

 granules instead of processes on the ventral surface of the 

 femur of the palp of this specimen is probably only an 

 individual variation, for in P.geniculatus, Poc, this segment 

 of the palp may be armed below with distinct processes or 

 only with granules. Nor do I attribute any importance to 

 the difference in colour between these two specimens, for they 

 liave been preserved a long time in alcohol, and the male is 

 much bleached. 



Material. — A male example (the type) collected by Mr. 

 Hoist in the forest near Motobu, Great Loo-Choo Island, 

 and a female example (from the same locality) which is 

 perhaps referable to the same species. 



Kf.y to the Species of the Oenus Pseudobiantes. 



a. Second abdominal division of scutum armed with 



a pair of small but distinct thorns ; femur of 



palp without any row of processes below .... P.japoniats, sp. n. 



b. Scutum unarmed ; femur of palp with a row of 



granules or processes below. 

 a' . Four distinct spines on outer side of tibia of 



palp (they must not be confused with the 



small spines in the middle of the lower sur- 

 face) ; narrowed proximal portion of patella 



of palp long P. insuhmiif, sp. n. 



h\ Only three distinct spines on outer side of 



tibia of palp, the distal one being either 



very minute or absent ; narrowed portion of 



patella short p. gemculatus, Toe. 



