58 BEITJSH FRESHWATER RH1ZOPODA. 



WEST in Jm. Linn. Soc., Zool. XXVIII (1901), pp. 328-329 ; in Ann. 



Scott. Nat. Hist, 1905, p. 90. 

 MURRAY in Proc. Roy. Soc. Edinb. XXV (1905), p. 615; in Bathym. 



SUIT. Scott. Lochs, I (1913), p. 326. 

 ODELL in Ottawa Natur. XIX (1905), p. 19. 

 AVERINTZEFF in Arch. Protist. VIII (1906), p. 117, f. 2 ; in Trudui 



S.-Peterb. Obshch. XXXVI, n (1906), p. 118, pi. ii, f. 31 ; ibid. pp. 



300-301. 



SCHOTJTEDEN in Ann. Biol. lacustre, I (1906), pp. 369, 370. 

 EVANS in Proc. E. Phys. Soc. Edinb. XVII (1907), table 1. 

 BROWN in Naturalist, 1909, p. 107; in Jrn. Linn. Soc., Zool. XXX 



(1910), p. 362 ; in Brit. Assoc. Handb. Sheffield (1910), pp. 500, 501 ; 



in Ann. Scott. Nat. Hist. 1911, pp. 229, 230 ; in Naturalist, 1912, 



pp. 181, 182 ; in Scott Natur. 1912, pp. 181, 182 ; 1913, p. 208. 

 HOPKINSON in Irish Natur. 1910, p. 3 ; in Trans. Herts Nat. Hist. 



Soc. XIV, 3 (1911), p. 232. 



HARTOG in Encycl. Brit., ed. 11, XXIII (1911), p. 247, f . 6 B (1-7). 

 WAILES & PENARD in Proc. B. Irish Acad. XXXI, LXV (1911), pp. 



19, 52. 

 WAILES in Scott. Natur. 1911, p. 61; in Jrn. Linn. Soc., Zool. XXXII 



(1912), pp. 126, 152; in Naturalist, 1913, p. 148. 

 SCHMIDT in Arch. Protist. XXIX (1913), p. 221. 

 Euglypha globosa 



CARTER in Ann. Nat. Hist. (3) XV (1865), pp. 290, 293, pi. xii, f. 14. 

 HKRTWIG & LESSER in Arch. mikr. Anat. X (1874), Suppl., pp. 129- 



132, vl. "i, f- 7. 



LEIDY in Proc. Acad. Philad. 1874, p. 226 ; loc. cit. 1878, p. 172. 

 SCHULZE in Arch. mikr. Anat. XI (1875), pp. 102-104, pi. v, ff. 5-8. 

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

 PARONA in Boll. Scient. II (1880), pp. 47, 48. 

 CLAUS Lehrb. Zool., ed. 2 (1883), p. 163, f. 125 ; Text-book Zool. 



(transl.), (1884) p. 186, f. 125 ; Traite Zool. (transl.), ed. 2 (1884), p. 



205, f. 207 ; Lehrb. Zool., ed. 4 (1887), p. 195, f. 148. 

 BLOCHMANN Mikr. Thierw. Siisswass. (1886), p. 14 ; ed. 2 (1895), p. 18. 

 ZUNE Analyse eaux potables (1894), p. 162, f. 93. 



Test hyaline, transparent, ovoid or globular, formed 

 of sub-circular or broadly-oval scales, regularly imbri- 

 cated; aperture terminal, linear, formed by a thin 

 cliitinous collar one side of which is inclined inwards ; 

 nucleus large, containing one or two nucleoles, placed 

 posteriorly ; plasma colourless, granular, only partly 

 filling the test; two contractile vesicles usually 

 present, one near the nucleus, the other near the 

 aperture ; pseudopodia long, numerous, attenuate, 

 radiating, straight or forked. 



Length 30-64 /*,; breadth 20-46 /x; aperture 10- 

 22 JJL ; thickness equal to the breadth or 5 per cent, to 

 10 per cent. less. 



