46 Prot. 
XVIII. PROTOZOA. 
[ 1905 ] 
brucii ) in Tsetse-flies ( 01 . fusca). — Development of Flagellate forms of 
Leishman-Donovan parasites ( Piroplasma donovani) in cultures (citrated 
blood) ; formation of a vacuole, from which the flagellum appears to 
originate, Christophers (85) and Leishman & Statham (253). 
Cysts and spores of Myxobolus neurobius and Henneguya niisslini n.spp., 
described, Schuberg & Schroder (420). — Characteristic Microsporidian 
spores of Myxocystis mrazeki n. sp., Hesse (179). — JVosema pulvis , spores 
of, and condition of diffuse infiltration in, Perez (344).— Sporogony in 
Thelohania moenadis , Perez (344). 
Development and sporulation of JSphceractinomyxon described ; con- 
struction of the life-cycle, Caullery & Mesnil (72). 
Sporulation and development of various Haplosporidia and allied forms 
described, Caullery & Mesnil (71). — Sporulation and spores of Ccelo- 
sporidium blattellce described, Crawley (93). — Pansporoblast- and spore- 
formation in the cysts of Rhinosporidium described, Minchin & Fantham 
(299). 
Curious mode of sporogony in Microklossia \ two successive sporulation- 
periods, the first apparently endosporous in character, and serving for 
autoinfection, the second only giving rise to definite spores and sporozoites, 
Krassilstschik (221). 
Zoospores of Dunaliella n. g., and their division, described, Teodoresco 
(478). — Phases in the life-history of Pseudospora volvocis ; amoeboid, 
flagellate, and radial forms, described, Robertson (379). 
Development and life-history of Trypanosoma lewisi fully described ; 
important phases undergone in an Invertebrate host (Hcematopinus 
spinulosus ), Prowazek (362). — Evolutive phases of Trypanoplasma and 
Trypanosoma spp. in leeches ( Hemiclepsis ) described, Brumpt (55). — 
According to Thiroux (483), there is no ontogenetic connection between 
Trypanosoma paddce and Halteridium danilewskyi , both parasites of 
Paada. 
Description of trypaniform phases in the life-cycle of Treponema (Spiro- 
chceta) pallidum (== Trypanosoma luis), Krzysztalowicz & Siedlecki(223). 
Various developmental phases in “ Trypanosoma ” balbianii described, 
Perrin (345). [The Rec. does not place much reliance on many of these 
phases, which are more likely abnormal or artificial.] 
F. Group Relationships ; Classificatory Changes. 
Classification of Rhizopods : in this designation Cash & Hopkinson (63) 
do not include Foraminifera, but make two orders [?] Amoebina and 
Conchulina ; the former includes Lobosa , V ampyrellida, and Reticulosa 
(with Biomyxa and Chlamydomyxa\ the latter the Testaceous forms. 
Schulze (431) finds that certain families of Haeckel’s “deep-sea 
Ceratosa,” namely, the Psamminidce and the Stannomidce , together with 
one or two other genera, Cerelasma and Psammophyllum of the Spongelidce , 
are not Metazoa, but plasmodium-forming Protozoa, which he includes with 
the Rhizopods and allies to the Foraminifera. 
On the earliest indications of the phylogenetic development of shell- 
dimorphism, in the Foraminifera ; “ the microspheric form to be regarded 
as some steps higher on the phylogenetic ladder than the megalospheric,” 
Rhumbler (375). — General remarks on the classification of Foraminifera 
by shell-form and structure, Schlumberger & Douvill£ (413). 
Classification and inter-relationships of the Heterosteginidce , including 
Spiroclypeus n. g., DouvillIs (113). — On the constitution of the Foramini- 
feran sub-family, Orbitoidince , Silvestri (449). 
Materials for a classification of the colony-forming Radiolaria ( Sphcero - 
zcea) : 2 families (Sphcerozoida and Collosphcerida) recognized, their cha- 
