4G8 
DORIS D. MACKINNON. 
33). lu form A the nucleus is often surrounded by a halo of 
small, sideropliilous, drop-shaped bodies (ingested bacteria?). 
In form B, the cytoplasm contains several large vacuoles, and 
stains relatively intensely. No cytostome visible. Dimen- 
sions 8 /i by 4 ^ to 12 by 7 /i. 
Keferences. 
Alexeielf, A. — “Notes sur les Flagelles,” ‘Arch, de Zool. exper. et gen.,' 
t. xlvi (1911a), pp. 491-527, 15 text-figs. 
“Sur la famille Cercomonadina Biitschli, etc,” ‘ C.R. Soc. 
Biol.,' t. Ixxi (1911b), p. 506. 
— “Sur la specification dans le genre Trichomonas, Donne,” 
ibid., t. Ixxi (1911c), p. 539. 
“ Recherches sur les Sarcosporidies. 1. Etude morpliologique,” 
‘ Arch. de. Zool. exper. et gen.,’ t. li (1913 a), pp. 521-569, 2 pis. 
“ Systematisation de la mitose dite ‘ primitive,’ etc.,” ‘ Arch. f. 
Prostistenk.,’ Bd. xxix (1913b), pp. 344-363, 7 text-figs. 
Doflein, F. — “ Studien zur Naturgeschiclite der Protozoen, Yl. Experi- 
mentelle Studien fiber die Trypanosoma des Frosches,” ibid., 
xix (1910), pp. 207-230, 3 pis. and 1 text-fig. 
‘ Lehrbuch der Protozoenkunde ’ (1911). 
Hartmann, M., and Chagas, C. — “ Flagellatenstudien,” ‘ Memorias do 
Instituto Oswaldo Cruz.,’ Ill, fasc. 1 (1910), jDp. 64-125, 6 pis. and 
3 text-figs. 
and Whitmore, E. — “ Untersuchungen iiber paratisische 
Amoben, III. Entamoeba coli Losch em. Schaudinn,” ‘Arch, 
f. Protistenk.,’ Bd. xxiv (1910), pp. 182-194, 2 pis. and 2 
text-figs. 
Leger, L. — ‘ Tablettes Zoologhpies ’ (1892). 
Mackinnon, D. L. — “ Protists parasitic in the Larva of the Crane-fly, 
Tipula sp. (Preliminary Note),” ‘Parasitology,’ vol. v (1912), 
pp. 175-189, 27 text-figs. 
“Studies on Parasitic Protozoa. I. The Flagellate Poly- 
mastix, etc.,” ‘Quart. Journ. Mic. Sci.,’ vol. 59 (1913), pj3. 
297 — 308, 1 j)l. and 1 text-fig. 
Ogawa, M. — “ Studien fiber die Trypanosomen des Frosches,” ‘ Arch. f. 
Protistenk.,’ Bd. xxix, 2 (1913). 
Parisi, B. — “ Su alcuni fiagellati endoparassiti,” ibid., Bd. xix (1910), 
pp. 232-238, 1 pi. 
