ASSULINA MUSCORUM. 55 



2. Assulina muscorum Greeff. 

 (Plate XLI, figs. 6-9 ; PI. XLIII, figs. 2-6.) 



Assulina seminulum 



LEIDY (pars) Freshw. Rhiz. N. Amer. (1879), pi. xxxvii, ff. 15-16, 26. 

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



11, p. 298. 

 Assulina muscorum 



GREEFF in Sitzber. Ges. nat. Marburg, 1888, pp. 117-118. 



HEINIS in Zool. Anzeig. XXXIII (1908), pp. 713-714; in Arch. 



Hydrobiol. Y (1910), pp. 109-110; in Rev. Suisse Zool. XIX 



(1911), p. 255. 

 PENARD in Arch. Protist. IX (1909), p. 265; in Brit. Antarct. Exped. 



I, 6 (1911), pp. 204, 207, 220, 225 ; in Deux, exped. antarct. fran9. 



(1911), Rhiz. pp. 4, 5. 

 BROWN in Naturalist, 1910, p. 93; op cit. 1912, p. 181; in Brit. 



Assoc. Handb. Sheffield (1910), p. 5UO ; in Ann. Scott. Nat. Hist. 



1911, pp. 229, 230 ; in Scott. Natur. 1912, p. 112 ; 1913, p. 210. 

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



pp. 14, 21, 60, 61, 62. 



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

 WAILES in Scott. Natur. 1912, p. 60 ; in Jm. Linn. Soc.. Zool. XXXII 



(1912), pp. 126, 150, 159 ; loc. cit. (1913), p. 213 ; in Naturalist, 1913, 



p. 147 ; in Murray's Nat. Hist. Bolivia and Peru (1913), p. 32. 

 Assulina minor 



PENARD in Mem. Soc. Geneve, XXXI (1890), n, p. 177, pi. ix, 



if. 14-25 ; in Jahrb. nassau. Ver. Naturk. XLIII (1890), p. 71 ; 



in Ainer. Natur. XXV (1891), pp. 1071, 1074, 1075 ; in Arch. Sci. 



nat. (4) VII (1899), p. 243 ; Faune Rhiz. Leman (1902), pp. 519- 



520, 4 figs. ; in Arch. Protist. II (1903), p. 272 ; in Proc. Roy. Soc. 



Edinb. XXV (1905), p. 593; Sarcodines in Cat. Invert. Suisse 



(1905), p. 107. 

 LAGERHEIM in Geol. Foren. Stockholm Forh. XXIII (1901), pp. 



477, 516. 



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

 MURRAY in Ann. Scott. Nat. Hist. 1907, p. 96 ; in Bathyin. Surv. 



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



COCKERELL in Univ. Colorado Stud. VI (1909), p. 305. 

 HOPKINSON in Irish Natur. 1910, p. 3. 

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



Test small, brown or rarely colourless, oviform, 

 compressed; transverse section oval or lenticular; 

 longitudinal section lenticular, truncate anteriorly at 

 the aperture ; formed of imbricated oval plates usually 

 arranged in alternating diagonal rows or occasionally 

 irregularly ; plasma colourless with a central band 

 of granules and sometimes containing chlorophylous 

 particles, nearly or quite filling the test ; nucleus of 



