34 BRITISH FRESHWATER RHIZOPODA. 



Two forms of this species occur ; in one the test 

 has an elliptical transverse section and an elliptical 

 aperture, in the other the transverse section and 

 aperture are both sub-circular ; but the- pointed aper- 

 ture-scales (fig. 122) are always characteristic and dis- 

 tinguish it from small glabrous forms of other species 

 and from E. rotunda. 



12. Euglypha ciliata (Ehrenberg) Leidy. 



(Plate XXXVII; PI. XXXVIII, figs.1-7; PI. XXXIX, 

 figs. 8-11; and figs. 119, 123, and 124 in text.) 



Difflugia ciliata 

 EHRENBERG in Ber. Acad. Berlin, 1848, p. 379 ; in Abb. Akad. Berlin, 



1871 (1872), p. 143, pi. iiu, f. 26. 

 Euglypha setigera 



PERTY (?) 'in Math. nat. Ges. Bern, 1849, p. 158; (pars) Kenntn. 



kleinst. Lebensf. (1852), p. 187, pi. viii, f. 196. 

 MAGGI (?) in Rend. R. 1st. Lomb. (2) IX (1876), p. 543; in Atti Soc. 



Ital. XXI (1878), p. 319. 



ZACHARIAS in Forschb. Plon, X (1903), pp. 241-242, pi. viii, f. 19. 

 Difflugia pilosa 



EHRENBERG Microgeol. (1854), pi. xxxiv, v B, f . 6 ; in Abli. Acad. 



Berlin, 1871 (1872), pi. ii B, f. 28. 

 Difflugia Setigerella ciliata 



EHRENBERG in Abh. Acad. Berlin, 1871 (1872), p. 247. 

 Difflugia Setigerella pilosa 



EHRENBERG in Abh. Acad. Berlin, 1871 (1872), p. 247. 

 Euglypha ciliata 

 LEIDY (pars) in Proc. Acad. Philad. 1878, p. 172 ; op. cit. 1879, p. 163 ; 



1880, p. 339; (pars) Freshw. Rhiz. N. Amer. (1879), pp. 214-218, 



pi. xxxvi, ff. 8-10, 16, 17, 20-22 ; pi. xxxvii, f. 30. 

 HITCHCOCK Synops. Freshw. Rhiz. (1881), pp. 36-37. 

 PENARD (pars) in Mem. Soc. Geneve, XXXI, 1, u (1890), pp. 178-179, 



pi. ix, fl. 41-48 ; in Jahrb. nassau. Ver. Naturh. XLIII (1890), p. 71 ; 



in Amer. Natur. XX Y (1891), pp. 1071, 1075 ; in Rev. Suisse Zool. 



IX (1901), p. 237 ; Faune Rhiz. Leman (1902), pp. 499-502, 3 figs. ; 



in Arch. Protist. II (1903), p. 269 ; in Proc. Roy. Soc. Edinb. XXV 



(1905), p. 596; Sarcodines in Cat. Invert. Suisse, pp. 101-102; in 



Jrn. R. Micr. Soc. 1907, p. 278; in Arch. Protist. XVII (1909), 



p. 265 ; in Brit. Antarct. Exped. I (1911), pp. 220, 235 ; in Deux. 



exped. antarct. fran^. (1911), pp. 4, 9. 



LORD (pars) in Sci. Gossip, XXVII (1891). pp. 267, 268, ff. 217, 218. 

 CASH in Trans. Manch. Micr. Soc. 1891 (1892), p. 52, pi. ii, f. 29. 

 SCHEWIAKOFF in Mem. Acad. St. Petersb. (7) XLI (1893), viii, pp. 6, 



78, 98. 

 FRIC & VAVRE in Arch. Landesf. Bohmen, X (1897), pp. 46-69* 



passim, f. 17. 



SCOTJRFIELD in Proc. Zool. Soc. Lond. 1897, p. 788. 

 ANDRE in Jahresb. Ges. Granbiind. (N. F.) XLI (1898), pp. 58, 59. 



