36 Prot. 
XVIII. PROTOZOA. 
[1904] 
tiiiguishable into somatic and germinal (sexual) nuclei, the former of which 
take no part in gamete-formation ; karyokinetic division, Lkger (188). — 
Nuclear multii)lication in sijorulating cysts of Urospora, Brasil (41). 
Nuclear multiplication and behaviour of the chromatin in Thelohania 
moenadis, Pkkez (263). 
Nuclear behaviour during the various phases of the life-history of Her- 
petomonas musc(je-domesticce, Prowazek (277). — Nuclear differentiation, 
reduction, and fission in Tricliomastix and Bodo^ Prowazek (278). 
Nuclear complexity and diff'erentiation in Trypanosoma noctiue and 
Spirochceta ziemanni ; the so-called " blepharoplast " is more than a centro- 
some — a kinetic nucleus of equal functional importance with the larger or 
trophic nucleus, Schaudinn (301). 
Nuclear changes during conjugation in Opalina intesti nalis ; comparison 
in this respect with other ciliates, Cohn (77). — Nuclear multiplication in 
O. saturnalis, Leger & Duboscq (194). — Nuclear maturation or purification 
during division in Opercularia stenostoma associated with " recuperation," 
Faure (103). 
E. Development; Life-Cycle. 
Encystment, and formation of little flagellate embryos, in Chlamydomyxa 
montana, Penard (260). 
Encystment in IHfflugia urceolata follows after conjugation ; it is not 
merely protective or for resting-purposes, but inlays an important part in 
further development, Zulzer (369). 
Development and growth of various intestinal Gregarines of Tracheates ; 
different types of development, Leger & Duboscq (192). — Comprehensive 
comparative account of the growth and development of Gregarines from 
the sporozoite-stage, Luhe (209). 
Cysts and spores of Diplocystis clerci n. sp., Leger (189). — Development 
and growth of the young individuals in Gregarina ovata from sporozoites, 
Paehler (256). — Spores and sporozoites of (Jrospora lagidis^ Brasil (41). 
Development of oocysts and spores in Adeiea transita, Leger (189). — 
Oocysts, spores, and sporozoites of Angeiocystis n. g., Brasil (40). 
Ookinetes of Hcemogregarina hagensis observed in Placobdella catenigera 
with two nuclear bodies, one much resembling the "centrosome" of a Try- 
panosome, Brumpt (48). 
Development of the different forms of Trypanosoma noctuce and Spiro- 
chceta ziemanni from different types of ookinete ; complex life-history, a 
true Hsemosporidian {Halteridium) phase alternating with the Trypanosome 
phase, Schaudinn (301). 
Further evohition of Trypanosoma harhatulce in Piscicola^ along the lines 
revealed by Schaudinn, and, similarly, of Trypanoplasma varium in Hemi- 
clepsis, described by Leger (184 & 185). 
Evidence pointing to ontogenetic relationship between T. inopinatum 
<and a Drepanidium of the green frog, which probably both represent phases 
in one complete life-cycle; forms transitional between "sporozoites" 
[probably merozoites] and /^p i roc /ue fa -like Trypanosomes, Billet (26). — 
Important experiments tending to prove that the Trypanosoma, in a leech, 
gives rise to the Drepanidium, in the frog, id. (20). 
Development of a flagelkxte (Trypanosome) phase in the splenic parasites 
of Kala-azar \Piroplasma donovani), Rogers (286). 
Notes on pansporoblasts and spores of various J/icrosporidia, Lutz & 
Splendore (213). — Development and growth of the cyst, "sporonts" 
[pansporoblasts] and spores in Glugea anojuala, Stempell (336). — Cysts 
and spores of G. step/iani, Woodcock (361). — Sporonts and development of 
spores in Thelohania legeri, Hesse (141). 
Formation and development of the cyst, spores, and sporozoites in 
