4 BRITISH EliESHWATER BHIZOPODA. 



1. Difflugia oblonga Ehrenberg.* 



(Plate XVII, figs, i-3, 7, and 8 ; PI. XIX, figs. 3 and 

 4 ; and figs. 33 ?, 36, 37 ?, 38, and 39 in text.) 



Difflugiaoblonga'EuvLEi^BiiB.a Ininsionsth. (1838), p. 131, t. ij, 

 ■f. 2 a-d; and in Abh. Akad. Wiss. Berlin, 1871 (1872), 

 pp. 241, 2.56 ; Rymee Jones in Cyclop. Anat. IV, 29 

 (1847), p. 10, f. 7, no. 1 ; Hayek Handb. Zool. (1857), p. 

 42, f. 62 ; Stein in Cams' Icon. Zootom. I (18-57), t. i, 

 f. 58; Hogg Microscope, ed. 3 (1858), f. 162 b; ed. 15 

 (1898), f. 326 b; Cr,APAEEDE & Lachmann Etudes Inf. et 

 Ehiz. 2 (1859), p. 448; Caetee, in Ann. Nat. Hist. (3) 

 XIII (1864), p. 22; Aechee in Q. Jrn. Micr. Sci. (n.s.) 

 VIII (1868), p. 122; and in Jrn. Dublin Micr. Club, I, 3 

 (1868), p. 178; Carpenter, Microscope, ed. 5 (1875), 

 f. 253 b; ed. 8 (1901), f. 579 b; Wythe Microscopist, ed. 

 3 (1877), pi. xii, f. 117b; LANESSANin Rev. internat. Sci. 

 VI (1880), p. 9 ; and Traite Zool., Prot. (1882), p. 52, 

 f. 41 ; Parona in Boll. Scient. I, an. 4 (1882), pp. 52, 57 ; 

 and in Arch. Sci. nat. (3) X (1883), p. 238; Phillips in 

 Tr. Herts Nat. Hist. Soc. II, 3 (1883), p. 121 ; Claus 

 Lehrb. Zool. ed. 2 (1883), f. 126 (p. 163) ; ed. 6, 1 (1904), 

 f. 229 (p. 228) ; (Engl, transl.) Text-book Zool. I (1884), 

 f. 126 (p. 186) ; (Fr. transl.) Traite Zool. (1884), ff. 201, 

 206 (pp. 199, 204) ; Zachaeias in Biol. Centralbl. IX 

 (1880), p. 58; LoNGi in Atti Soc. Ligust. Ill (1892), p. 

 145 ; op. cit. V (1894), p. 18 ; and VI (1895), p. 71. 



Difflxigia pyriformis Perty ? in Mitth. nat. Ges. Bern, 1849, 

 p. 168; and Kenntn. kleinst. Lebensf. (1852), p. 187, 

 t. ix, f. 9 ; Carter in Ann. Nat. Hist. (3) XII (1863), p. 

 249; and op. cit. (3) XIII (1864), p. 21, t. i, S. 1-4; 

 Archer in Q. Jrn. Micr. Sni. (n.s.) VI (1866), p. 186; 

 and in Jrn. Dublin Micr. Club, I, 2 (1867), p. 51; Paepitt 

 in Tr. Devon Assoc. Ill (1869), p. 66; Leiby (pars) in 

 Pr. Acad. Philad. 1874, pp. 14, 79 ; op. cit. 1877 (1878), 

 p. 307; 1879, p. 162; 1880, p. 338; 1881, p. 10; and 

 Preshw. Rliiz. N. Amer. (1879), p. 98, t. x, ff. 1-16, 18- 

 21, 26 ; t. XV, ff. 32, 33 ; t. xvi, f. 38 ; Nicholson Man. 

 Zool. ed. 5 (1878), p. 63, f. 8; ed. 7 (1887), p. 77, f. 18 ; 

 BiJTSCHLi in Bronn's Thier-Reiclis, I, 1 (1880), t. iii, f. 6 ; 

 Hitchcock Synops. Freshw. Rhiz. (1881), p. 12; Entz in 

 Biol. Centralbl. II (1882), p. 451 ; Stokes in Amer. M. 

 Micr. Jrn. Ill (1882), p. 93; Taeanek in Sitzber. bolim. 

 * See note on synonymy. Vol. I, p. 41. 



