96 BRITISH FKKSHWATER RHIZOPODA. 



1. Vampyrella lateritia (Freseri.) Leidy. 

 (Plate X; PL XI, figs. 1-3.) 



Amoeba lateritia FRESENIUS in Abh. Senckenb. nat. Ges. II 

 (1856), p. 218, t. x, ff. 13-19. 



Vampyrella spirogyrx CIENKOWSKI in Jalirb. wiss. Bot. Ill 

 (1863), p. 428, and in Arch. f. mikr. Anat. I (1865)., 

 p. 218, tt. xii-xiii, ff. 44-56; H^CKEL in Jen. Zeits. f. 

 Med. u. Nat. IV (1868), p. 133, and Biol. Stud. XII 

 (L870), p. 72; HEKTWIG and LESSEE in Arch. f. mikr. 

 Anat. X (1874), Suppl. p. 61, t. ii, f. 2; ALLMAN in 

 Journ. Linn. Soc., Zool. XIII (1877), p. 419, f. 11; 

 ARCHER in Q. J. Micr. Sci. XVII, n.s. (1877), p. 347; 

 MAGGI in Eend. R. 1st. Lomb. (2) X (1877), p. 367, and 

 in Boll. Scient. Ill, an. 10 (1888), p: 105; BUTSCHLI in 

 Bronn's Thier-Reichs, I, 6 (1880), t. xii, f. 11 ; KLEIN in 

 Bot. Zeit. XL (1882), col. 214, and in Bot. Centralbl. XI 

 (1882), p. 256; LANESSAN Traite Zool., Prot. (1882), p. 28, 

 ff. 10-13; RAY LANKESTER in Encycl. Brit. ed. 9, XIX 

 (1885), p. 839, f. ii, 5-7 ; ZOPP Pilzthiere oder Schleimp. 

 (1885), p. 104, f. 10, i-iii, f. 11, iii, iv, f. 37 E-G; DANGEARD 

 in Ann. Sci. Nat., Bot. (7) VI (1886), pp. 252, 254; 

 BINET Vie psych, in Psych, exper. (1888, 1891), p. 235, 

 and (Engl. transl.) Psych. Life (1889), p. 114; PENARD in 

 Arch. Sci. Phys. XXII (1889), p. 523, and in Mem. Soc. 

 Phys. Geneve, XXXI, no. 2 (1890), p. 119, t. i, ff. 1-16. 



Vampyrella lateritia LEIDY Freshw. Rhiz. N. Amer. (1879), 

 p. 253, t. xlv, ff. 10-16; S[EWARD] in Amer. Journ. Micr. 

 V (1880), p. 105, ff. ; HITCHCOCK Synops. Freshw. 

 Rhiz. (1881), p. 46 ; BLOCHMANN Mikr. Thierw. Susswass. 

 (1886), p. 19, t. ii, f. 42, and ed. 2 (1895), p. 22, t. ii, 

 f. 35; WHITELEGGE in Proc. Linn. Soc. N. S. Wales, (2) I 

 (1886), p. 503; PERRY in Proc. Amer. Soc. Micr. XII 

 (1891), p. 95; CASH in Trans. Manch. Micr. Soc. 1891 

 (1892), p. 53, t. ii, ff. 22, 23; LORD in Trans. Manch. 

 Micr. Soc. 1891 (1892), p. 57 ; CRAWLEY in Amer. Nat. 

 XXXIV (1900), p. 255, ff. ; G. S. WEST in Journ. Linn. 

 Soc., Zool. XXVIII (1901), p. 333, t. xxix, ff. 29-31, and 

 op. cit. XXIX (1903), pp. 109, 112. 



Body ordinarily spherical, but susceptible of varia- 

 tion ; in the active state appearing as a reddish 

 actinophrys-like form, displaying numerous straight 



