PSEUDODIFFLUGIA GHACILIS. 115 



LORD in Sci. Gossip, 1891, p. 245, f. 202 ; op. cit. 1892, p. 129 ; in 



Trans. Manch. Micr. Soc. 1891 (1892), p. 56. 

 PERRY in Proc. Amer. Soc. Micr. XII (1891), p. 95. 

 CASH in Trans. Manch. Micr. Soc. 1891 (1892), p. 52. 

 DADAY in Termesz. Fiizetec, VI (1892), p. 27, etc. ; in Deutsch-Ost- 



Africa, IV, xxm (1910), p. 11. 



SCHEWIAKOFF in Mem. Acad. St. Petersb. (7) XLI (1893), Tin, p. 98. 

 ENTZ in Math. Termesz. ertes. XV (1897), pp. 173, 178; in Math. nat. 



Ber. Ungarn, XV (1899), pp. 184, 188. 

 SCHAUDINN in Deutsch-Ost- Africa, IV, xvn (1897), p. 11. 

 AVERINTZEFF in Trudui S.-Peterb. Obshch. XXX, I (1900), p. 240 ; 



op. cit. (pars) XXXVI, II (1906), pp. 276-277. 

 EYFERTH Einfach. Lebensf., ed. 3 (1900), p. 271. 

 WEST in Jm. Linn, Soc , Zool. XXVIII (1901), p_. 330. 

 PENARD Faune Rhiz. Leman (1902), pp. 449-450, 4 figs. ; in Arch. 



Protist. II (1903), p. 264 ; Sarcodines in Cat. Invert, Suisse (1905), 



pp. 90-91. 



ZSCHOKKE in Arch. Hydrobiol. I (1905), p. 4. 

 SCHOUTEDEN (pars) in Ann. Biol. lacustre, I (1906), p. 364. 

 HOPKINSON in Irish Natur. 1910, pp. 3, 4. 

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



p. 19. 

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



(1912), p. 126; loc. cit. (1913), p. 213; in Naturalist, 1913, p. 148. 

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

 Pleurophrys sphierica 



CLAPAREDE & LACHMANN Etudes Inf. et Rhiz. I, 2 (1859), p. 455, 



pi. xxii, f. 3. 

 ARCHER ? in Qrt. Jm. Micr. Sci. (N. s.) IX (1869), pi. xx, f. 1 ; op. cit. 



(N. s.) X (1870), pp. 77-20, 121 ; (N. s.) XVI (1876), p. 343 ; in Proc. 



Dubl. Micr. Club, I, 5 (1872), pp. 352-354, 389, pi. xiii, f. 1. 

 HERTWIG & LESSER in Arch, rnikr. Anat. X (1874), Suppl., p. 135, 



pi. iii, f. 4. 



SCHULZE in Arch. mikr. Anat. XI (1875), p. 122. 

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



Ital. XXI (1879), p. 319. 



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

 FOREL Le Leman, III (1902), p. 173. 

 BUTLER in Brit. Assoc. Handb. Dublin (1908), p. 219. 

 Pleurophrys amphitremoides 



ARCHER in Qrt. Jm. Micr. Sci. (N. s.) X (1870), pp. 20, 121, pi. xx, 



f. 2 ; in Proc. Dubl. Micr. Club, I, 5 (1872), pp. 355, 389, pi. xiii, 



f. 2. 



SCHULZE in Arch. mikr. Anat. XI (1875), pp. 123-124, pi. vii, f. 1. 

 ALLMAN in Jrn. Linn. Soc. XIII (1877), pp. 407-408. 

 PENARD in Mem. Soc. Geneve, XXXI, i, n (1890), p. 170, pi. vii, ff. 



115-117 ; pi. viii, ff. 1-8 ; in Rev. Suisse Zool. IX (1901), p. 238. 

 Difflugia gracilis 



EHRENBERG in Abh. Akad. Berlin, 1871 (1872), p. 264. 

 Pleurophrys angulata 



MERESCHKOVSKY in Trudui S.-Peterb. Obshch. VIII (1878), p. 192, 



pi. ix, f. 14; in Arch. mikr. Anat. XVI (1879), pp. 192-193, pi. x, 



ff. 14, 14 a. 

 Pseudodifflugia amphitremoides 



BUETSCHLI in Bronn's Thierreichs, I, 1 (1880), pi. iii, f. 14. 



