28 BRITISH FRESH WATE II RHIZOPODA. 



In the United States individuals up to 85 /x in length 

 are not rare, and 93 //, is sometimes attained. A small 

 form, var. pi/riformis Wailes, which has a distinct neck, 

 occurs there ; also var. spmosa Wailes, which has long 

 spines all over the test. 



9. Euglypha strigosa (Ehrenberg) Leidy. 



(Plate XXXVI, figs. 1-6; PI. XXXIX, figs. 1-4; and 

 fig. 120 in text.) 



Difflugia strigosa 



EHRENBERG in Abh. Akad. Berlin, 1871 (1872), pp. 143, 257, pi. ii B, 



f. 31. 

 Difflugia Setigerella strigosa 



EHRENBEKG in Abh. Akad. Berlin, 1871 (1872), p. 247. 

 Euglypha strigosa 



LEIDY in Proc. Acad. Philad. 1878, p. 172 ; op. cit. 1880, pp. 336, 339. 



PARONA in Boll. Scient. II, pp. 47, 48. 



MAGGI in Rend. R. 1st. Lomb. (2) XXI (1888). p. 301. 



PENARD in Mem. Soc. Geneve, XXXI, 1, 11 (1890), p. 179, pi. ix, ff. 58- 



68 ; in Jahrb. nassau. Ver. Naturk. XLIII (1890), p. 71 ; in Arch. 



Sci. nat. (4) VII (1899), p. 269 ; Faune Rhiz. Leman (1902), pp. 502- 



504, 5 tigs.; in Arch. Protist. II (1903), p. 269; in Brit. Aiitarct. 



Exped. I (1911 , pp. 220, 236; in Deux, exped. antarct, fran?. (1911), 



pp. 4, 10. 

 AVERINTZEFF in Trudui S.-Peterb. Obshch. XXXVI. u (1906), 



pp. 288-289. 



SCHOUTEDEN in Ann. Biol. lacustre, I (1906), pp. 266. 367, f. 41. 

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

 HEINIS in Zool. Anzeig. XXXIII (1908). p. 713 ; in Arch. Hydrobiol. 



V (1910), p. 109 ; in Rev. Snisse Zool. XIX (1911), p. 255. 

 BROWN in Jrn. Linn. Soc., Zool. XXX (1910), p. 362 ; in Ann. Scott. 



Nat. Hist. 1911, pp. 229, 230; in Naturalist, 1912, p. 181; in 



Scott. Natur. 1912, p. 112; 1913, pp. 208, 210. 

 HOPKINSON in Irish Natur. 1910, p. 3. 

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



pp. 37,36,42,60,62. 



EDMONDSON in Univ. Colorado Stud. IX (1912), p. 69. 

 WAILES in Scott. Natur. 1912, p. 61 ; in Jrn. Linn. Soc., Zool. XXXII 



(1912), pp. 125, 149, 160 ; Inc. cit. (1913), p 213 ; in Murray's Nat. 



Hist, Bolivia and Peru (1913), pp. 32, 37 ; in Naturalist, 1913, p. 148. 

 Euglypha ciliaia var. strigosa 



LEIDY (pars) Freshw. Rhiz. N. Amer. (1879), pp. 216, 290, pi. xxxv, 



f. 20. 



AVERINTZEFF in Trudui S.-Peterb. Obshch. XXX (1900), i. p. 249. 

 WEST in Jrn. Linn. Soc., Zool. XXVIII (1901), p. 327. 



Test of medium size, broadly oviform or pyriform, 

 compressed, ciliated ; transverse section elliptical ; 

 aperture circular, bordered by 10 to 14 denticulated, 



