TERRESTRIAL ACARI OF THE TYNE PROVINCE 85 



172. Gamasus immanis, Berl. 68. 



Littoral. Bamburgh (Bagnall). 

 Lancashire (Furness, Bagnall). Ireland, Scotland 

 (King). 



173. Gamasus trouessartii, Berl. 68. 



Littoral. North Sunderland, Budle Bay. 

 Lancashire (Bagnall). 



174" Gamasus kraepelinii, Berl. 67, 68. 



Ninebanks, on a dead fowl. Bamburgh, on a dead 



rabbit. 

 Ireland, on decayed fungi. Scotland (Isle of May, 



Evans.) 



175. Gamasus cornutus, Can. 66, 67, 68. 



General and common in grass, &c. Pale yellow- 

 brown, piriform, with many rod-like setse. 

 Ireland (one $ only, under bark). Scotland (Evans). 



176. Gamasus oudemansii, Berl. 67. 



West Allendale, in moles' nests. 



177. Gamasus stygius, sp. n. 67. 



Length of both sexes about 1,100 /x; nymph very 

 little smaller. Colour of body and scuta dull 

 whitish. 



$ broad elliptic oval, not shouldered ; posterior 

 scutum leaving a narrow margin all round, anterior 

 strongly convex in the middle behind, both evenly 

 covered with rather spiny setas of uniform length, 

 as also is the exposed body margin, the two 

 humeral setas only about twice as long. 



^narrower; dorsal setae longer and denser; epistome 

 with one ligulate lobe rounded at the apex 

 minutely denticulate at the base and with one or 

 two lateral denticles ; setae of the legs (both 

 sexes) spinous and long, especially on the proximal 

 joints. 



