43 s on some eare arachnids 



Order PSEUDOSCORPIONES 



Chthonius Rayii (L. Koch). I have found this animal 

 amongst dead leaves at Burnham Beeches, Cudham, and 

 Chester. It also occurred under stones at Swanage, and 

 amongst bat's dung in a cave at Cefn in North Wales. 



Chthonius tenuis (L. Koch). Frequent amongst moss 

 and dried leaves in the New Forest. It was much 

 commoner there than the ubiquitous Obisitm muscorum 

 (Leach) which also occurred. Both species also turned 

 up at Blox worth. 



Ghernes cyrneus (L. Koch). Mr. Wallis Kew most 

 kindly took me to the tree in Richmond Park inhabited 

 by this species. We found several examples ; they were 

 not so hard to find as was the tree. 



Order PEDIPALPI 



Trithyreus Bagnallii (Jackson). (Plate X., figs. 1-5). 

 I described this animal in a previous paper,-'' and here 

 give figures. Several females have been found at Kew 

 since my communication, but unfortunately no males. The 

 present species is distinguished from all other Tartarids 

 except one by the presence of distinct eyes, each with a 

 convex vitreous cornea. From T. Cambridgii (T. Thor.) 

 it may be separated by the shape of the eyes, which in 

 Cambridgii lixowwA and more convex, in the present form 

 irregularly oval and less so. T. Bagnallii also has the 

 fourth femora only twice as long as broad ; in T. Cam- 

 bridgii they are slenderer, the length being two and a 

 half times the breadth. The shape of the palpal trochanter 

 is rather different also in the two species. In the present 

 figures I illustrate most of these points. The example 

 figured measured 3*1 mm. in length, exclusive of the 

 flagellum. 



* Trans. Nat. Hist. Soc. Northd., Durham, and Newcastle-on-Tyue, New Series, 

 vol. iii., part 1, pp. 28, 29, 30. 



