16 BRITISH FIIESHWATBR RHIZOPODA. 



or two rows of 8-12 finely-serrated scales ; plasma 

 Bormal ; nucleus large, containing one nucleole which 

 is often central and sometimes granular; the pseudo- 

 podia long, fine, radiating, generally straight, seldom 

 branched. 



Length, 45-100 /a; diameter 24-50 ju, ; aperture 

 10-20 /x; nucleus 10-16 ju, in diameter; scales 10-16/1, 

 in longest diameter. 



Habitat. — Mosses, sphagnum, and submerged vege- 

 tation; generally distributed. 



England. — Cumberland and Westmorland (Broiim); 

 Isle of Man ; N. and W. Yorkshire ; Cheshire (Gash) ; 



113. 

 112. fl'W /f\\ (I 114. 



Fias. 112-114. — Euglypha tuherculata. 112, circular type of body-scales. 

 X 1000. 113, oval type. x. 1000. 114, aperture-scale x 2000. 



Derbyshire (Z?roi(;yi) ; Shropshire; Bedfordshire; Cam- 

 bridgeshire ; Essex {Scourjj.elil) ; Kent ; Devonshire ; 

 Cornwall. 



Scotland. — Shetlands; Orkneys; Ross-shire {West); 

 Hebrides! {West); Inverness-shire {West, Peiiard) ; 

 Perthshire {West, Broivn) ; Argyllshire {Brown); 

 ? Forth area {Evans) ; Ayrshire, Kirkcudbrightshire, 

 and Wigtonshire {Brown). 



IiiELAND. — Mayo; Galway; Wicklow; Kerry. 



The glabrous, uncompressed, ovoid test and circular 

 or broadly-oval scales (figs. 112 and 113) readily dis- 

 tinguish E. tibberculata from all other species of 

 Euglypha. 



In the United States a variety occurs (var. cirrata 



