ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 59 



Life-history of Glaucoma scintillans.* — S. Prowazek describes the 

 complex process of division, the occurrence of conjugation, the formal ion 

 of three reduction-nuclei, and other events. After conjugation there is 

 at first very slow multiplication, and many die. Conjugation does not 

 increase the activity of the process of division, but regulates the internal 

 economy of the cell. 



Trypanosoma congolense.t — A. Laveran gives an account of this 

 species, found by Broden in the Congo Free State-in ass. sheep, cattle 

 and dromedaries. It is marked by its minute size and by the absence of 

 a free portion of the flagelluin. It comes nearest T. dimorphon, from 

 which Laveran distinguishes it. 



Alleged Autogamy of Bodo lacertae.J — C. C. Dobell has studied 

 organisms in the frog which are closely similar to stages in the life-cycle 

 of Bodo lacertCB, as described by Prowazek. But they are really yeasts, 

 which have been mistakenly included in accounts of the life-cycle of 

 Bodo, and have given basis to the conclusion that autogamy and 

 chromidia occur in this organism. This, according to the author, is still 

 imp ro ven. 



New Schizogregarine from an Ascidian.§ — Annie Porter describes 

 M&rogregarina amaroucii g. et sp. n., parasitic in the alimentary tract of 

 a compound Ascidian, belonging to the genus Amaroucium. The tro- 

 phozoite is non-septate, ovoid, possessing a small definite epimerite 

 which is shaped like the head of a lance. Myonemes are present 

 anteriorly. Schizogony is intra-epithelial, the schizonts being numer- 

 ous, but" the number of merozoites produced by each are relative!} 

 small. Sporogony occurs in the lumen of the gut, the spores being 

 octozoic. 



* Zool. Anzeig., xxxiii. (1908) pp. 277-9 (8 figs.). 



t Ami. lust. Pasteur, xxii. (1908) pp. 833-5 (3 figs.). 



X Biol. Centralbl., xxviii. (1908) pp. 548-55 (7 figs.). 



§ Arch. Zool. Exper. ix. (1908) Notes et Revue, No. 2, pp. xliv.-vm. 



