TERRESTRIAL ACARI OF THE TYNE PROVINXF. 385 



HERMAN I ELLA, Berl. 



15. Hermaniella granulata, Nic. 



Hermannia arrecta, B.O. 66b. 



Michael says this is generally distributed : I find it 



decidedly local. 

 Cumberland, Cheshire, Scotland. 



SCUTOVERTEX, Mich. 



16. Scutovertex sculptus, Mich. 66a, 67c, 68a. 



The only moss-species in this genus. Local. 

 Cumberland, Lancashire, Cheshire, Scotland, Ireland. 



17. Scutovertex maculatus, Mich. 



This form, with 10 'knobbed' spines in the hinder 

 and lateral margin I have never seen. Cornwall 

 (Michael), Scotland, Ireland. Whether the Scottish 

 and Irish belong to this or the next I do not know. 



var. pseudomaculatus, Hull. 66ac, 67c. 



Spines on hinder margin stout and acute. 

 Swarms on the Northumbrian coast near Whitley 



Bay and ascends to 1,600 feet on Muggleswick 



Common, Durham. 

 Cheshire, rare. 



var. insularis, Hull. 67c. 



Dorsum transversely wrinkled (as the nymph, but 

 black). 



St. Mary's Island, Northumberland, with the 

 preceding. 



18. Scutovertex lineatus, Thor. 



S. corrugatus, B.O. 67c. 



Always aquatic, sometimes in fresh water, but never 



beyond the reach of sea spray. 

 Anglesey (B.O.). Ireland. 



19. Scutovertex bilineatus, Mich. 67c, 68c. 



Wholly aquatic, nearly always in pure sea-water. 

 var. spoofi, Oud 66c. 



Roker pier (Bagnall). 



