526 BRITISH ORIBATID^. 



conspicuous. Some specimens have a few slight longi- 

 tudinal wrinkles on the notogaster. 



Nym]pli. 



The nymph is so like the adult that it is not neces- 

 sary to describe it elaborately ; the principal differences 

 are the softer and lighter cuticle and the monodactyle 

 claws of the nymph, and that its abdomen has a few 

 broad, irregular, more or less transverse wrinkles, 

 which give it a broken outline. 



Distribution. — I have a specimen or two of this 

 species caught at Epping Forest in 1879. Mr. E. 

 Bostock has found one or two in the Midland Counties, 

 and I received some goods packed in dry sphagnum a 

 short time since, and on examining the sphagnum 

 found that it contained numerous dead specimens of 

 this species. I was not able to ascertain where the 

 sphagnum came from. On a visit to the New Forest 

 in April, 1887, however, I found the species fairly 

 common in one or two of the pools, living in sphagnum 

 under water ; it appeared to be either a truly aquatic, 

 or an amphibious species. 



NoTHRUS TARDUS,* sp. nov. PI. XLVII, fig. 14. 



Averao:e lengcth about "36 mm. 



Average breadth about '20 mm. 



Average length of legs (first pair) about "10 mm. 



Average length of legs (second pair) about '08 mm. 



Average length of legs (third pair) about "10 mm. 



Average length of legs (fourth pair) about '13 mm. 



This is a small species very like i\^. monodactylus, 

 from which it may be known by its tridactyle claw, 

 different tarsi, larger size, &c. 



Colour light yellow-brown. 



Texture very finely and almost evenly, reticulated 



* Tardus, slow. 



