On a new Jumping Mite from the Mendip Hills. 213 



intertemporal breadth 1P7 ; palatal length 33"3 ; upper 

 tooth-row 31. 



Hub. Palestine and Asia Minor. Type from near 

 Jerusalem. 



Type. Adult female with worn teeth. B.M. no. 18. 8. 1. 2. 

 Collected May 1918 during the British campaign, and pre- 

 sented by Capt. Guy C. Shortridge. 



Of this hedgehog the Museum contains five specimens, 

 with imperfect skulls, from Bit. Lebanon, presented by 

 Saleem Baroody, a fine old female from Tortoum near 

 Erzeroum, collected by R. B. Woosnam, and another from 

 Kara Dagh near Konia, presented by L.Ramsay, in addition 

 to the present specimen (the type). I have thought it wise 

 to select as type a specimen from the farthest southern 

 known extension of the group — that is, of the restricted genus 

 Erinaceus, — the hedgehogs from further south and east being- 

 referable to IJemiechinus. 



XXIII. — Onaneio Jumping Mite of the Genus Nanorchestes 

 from the Mendip Hills. By STANLEY HlRST. 



The mite dealt with in the present note is of interest, owing 

 to the fact that the only species of the genus hitherto 

 described (viz. Nanorchestes amphibius, Topsent & Troues- 

 sart) lives on the sea-shore, between the tide limits or 

 slightly above them. This littoral species was discovered by 

 M. Topsent at Luc-sur-Mer (Calvados), France, and after- 

 wards found by the author at St. Catherine's Point, Isle of 

 Wight. The new species described below has a very 

 different habitat, for it lives on the summit of the Mendip 

 Hills at an altitude of over 800 feet and more than eight 

 miles from the sea-coast. 



Nanorchestes collinus, sp. n. 



General appearance very like N. amphibius, Tops. & 

 Trouess., but smaller in size. Hairs on dorsal surface of 

 cephalothorax also very similar. The curious unpaired 

 median structure between the chelicerae is present and 

 strongly curved. This new species differs from N. amphibius 

 in the following details of structure : — Dorsal hair on cheli- 

 cera slender and dividing close to the base into two plumose 

 branches, the outer one being considerably longer than the 



Ann. & Mag. N. Hist. Ser. 9. Vol ii. l(j 



