EUGLYPHA COMPRESSA. 39 



Wailes & Pbnaed in Proc. R. Irish Acad. XXXI, lxv (1911), pp. 



17,39-40, pl.iii, f.l8a,6. 

 Wailes in Scott. Natur. 1912, p. 61 ; in Jm. Linn. Soc, Zool. XXXII 



(1912), pp. 125, 144, 160; loc. cit. (1913), p. 213; in Naturalist, 1913, 



p. 147. 

 Huglypha ampvllacea 



Hbetwig & Lesser in Arch. mikr. Anat. X (1874), Suppl., pp. 123- 



124,]32,pl.iii,f. 6. 

 Aecher in Qrt. Jrn. Micr. Sci. (n. s.) XVII (1877), p. 203, pi. xiii, 



f. 7 ; in Proc. Dublin Micr. Club, III, 3 (1880), p. 273, pi. x, f. 7. 

 Etfeeth Einfach. Lebensf. (1878), p. 34; ed. 2 (1885), p. 52. 

 Blochmann Mikr. Thierw. Siisswass (1886), pp. 13-14 ; ed. 2 (1895), 



p. 17. 

 Feance in Res. Erforsch. Balatons. II (1897), i, p. 10. 

 Atbeintzeep in Trudui S.-Peterb. Obshcb. XXX (1900), i, p. 249 ; 



op. cit. XXXYI (1906), II, pp. 289-290. 

 MlTKEAT in Proc. Roy. Soc. Edinb. XXV (1905), p. 615. 

 Schmidt in Arch. Protist. XXIX (1913), p. 220. 

 Buglypha ciliata 



iiEiDY (pars) Freshw. Rhiz. N. Amer. (1879), p. 216, pi. xxxvi, fe. 1-6, 



15 ; pi. xxxvii, f. 29. 

 Pbnaed (pars) in Mem. Soc. Geneve, XXXI (1890), ii, pi. ix, fp. 49-53. 

 Daday (pars) in Zoologica; XVIII, xlit (1905), p. 19. 

 Euglypha a ^ " . 



Vbjdotsky (pars) Thier. Org. Brunnenw. Prag (1882), p. 38, pi. ii, 



f. i A, B. 

 ? Euglypha zonata 

 Maggi in Rend. R. 1st. Lomb. (2) XXI (1888), p. 310, pi., f. 7. 



Test large, broadly oviform, truncate, considerably 

 compressed ; transverse section lenticular with acute 

 margins ; aperture elliptical, bounded by a single row 

 of bluntly-denticulated or lobed scales ; test furnished 

 with spines on the margin only, arising at regular 

 intervals either singly or in tufts of two or three ; 

 body-scales oval, large ; nucleus large, containing 

 several nucleoles ; plasma and pseudopodia normal. 



Eia. 12.3. — Forms of aperture-scales of EuglypTia compressa. x 1000. 



Length 70-132 jw; breadth 40-80 /a; aperture 18- 

 28 /a; thickness 20-45 /a; body-scales 9-12 /^ in length; 

 spines 5-35 fx. in length. 



HaJi'to^.— Sphagnum and aquatic vegetation. 



England. — Durham ; Cumberland, Westmorland, 



