Ultrastructure and 18S rDNA Phylogeny of Apoikia lindahlii comb. nov. (Chrysophyceae) and its Epibiontic Protists, Filos agilis gen. et sp. nov. (Bicosoecida) and Nanos amicus gen. et sp. nov. (Bicosoecida)
E. Kim, N. Yubuki, B.S. Leander and L.E. Graham

Phylogenetic Affiliations of Mesopelagic Acantharia and Acantharian-like Environmental 18S rRNA Genes off the Southern California Coast
I.C. Gilg, L.A. Amaral-Zettler, P.D. Countway, S. Moorthi, A. Schnetzer and D.A. Caron

Patterns of Genetic Diversity in the Marine Heterotrophic Flagellate Oxyrrhis marina (Alveolata: Dinophyceae)
C.D. Lowe, D.J.S. Montagnes, L. E. Martin and P.C. Watts

Maintaining Cell Polarity through Vegetative Cell Pattern Dedifferentiation: Cytoskeleton and Morphogenesis in the Hypotrich Ciliate Sterkiella histriomuscorum
G. Fryd-Versavel, M. Lemullois and A. Aubusson-Fleury

Microevolution and Speciation in Thalassiosira weissflogii (Bacillariophyta)
U. Sorhannus, J.D. Ortiz, M. Wolf and M.G. Fox

A Novel Protein Kinase from the Ciliate Euplotes raikovi with Close Structural Identity to the Mammalian Intestinal and Male-Germ Cell Kinases: Characterization and Functional Implications in the Autocrine Pheromone Signaling Loop
A. Vallesi, B. Di Pretoro, P. Ballarini, F. Apone and P. Luporini

Ultrastructure and Molecular Phylogenetic Position of a Novel Phagotrophic Stramenopile from Low Oxygen Environments: Rictus lutensis gen. et sp. nov. (Bicosoecida, incertae sedis)
N. Yubuki, B.S. Leander and J.D. Silberman

The Life History of Flabellula baltica Smirnov (Gymnamoebae, Rhizopoda): Adaptations to a Spatially and Temporally Heterogeneous Environment
T. Fenchel

Recycling and Uptake of Si(OH)4 when Protozoan Grazers Feed on Diatoms
S. Schultes, C. Lambert, P. Pondaven, R. Corvaisier, S. Jansen and O. Ragueneau

Molecular Phylogeny and Classification of the Mamiellophyceae class. nov. (Chlorophyta) based on Sequence Comparisons of the Nuclear- and Plastid-encoded rRNA Operons
B. Marin and M. Melkonian