September 14th 2007

(Number 1)T.-P. Chang - Elektronenmikroskopische Untersuchungen an dem Typusmaterial der zentrischen kieselalge Cyclotella stelligera Cleve et Grunow (pp. 1-14);  C.E. Gibson & A.G. Fitzsimons - Light break in the dark period depresses the growth rate of a freshwater planktonic diatom (pp. 15-20);  J. Hürlimann & F. Straub - Morphologische und ökologische charakterisierung von Sippen um den Fragilaria capucina-komplex sensu Lange-Bertalot 1980 (pp. 21-47);  J. John - Climaconeis stromatolitis, a new species of diatom from Shark Bay, Western Australia (pp. 49-54);  R.W. Jordan & J. Priddle - Fossil members of the diatom genus Proboscia (pp. 55-61);  R.W. Jordan, R. Ligowski, E.-M. Nöthig & J. Priddle - The diatom genus Proboscia in Antarctic waters (pp. 63-78);  D.G. Mann & A.J. Stickle - The genus Craticula (pp. 79-107);  L.K. Medlin - Evidence for parallel evolution of frustule shape in two lines of pennate diatoms from the epiphyton (pp. 109-124);  C. Riaux-Gobin - Diatomées d’une vasière intertidale du Nord Finistère (Dourduff): Genres Cocconeis, Camplyoneis, Delphineis, Mastogloia et Rhaphoneis (pp. 125-135);  F.E. Round - Epilithic diatoms in acid water streams flowing into the reservoir Llyn Brianne (pp. 137-145);  F.E. Round - On stria patterns in Fragilaria and Synedra (pp. 147-154);  P.J.M. Snoeijs, G. Hällfors & E. Leskinen - Taxonomy and ecology of Catacombas obtusa comb. nov. (pp. 155-164);  P.J.M. Snoeijs, G. Hällfors & E. Leskinen - The transfer of two epipsammic diatom species to the genus Martyana (pp. 165-173);  W. Vyverman & P. Compère - Nupela giluwensis gen. & spec. nov., a new genus of naviculoid diatoms (pp. 175-179). Obituary - Prof. Dr Lothar Geitler 1899-1990 (pp. 181-193);  Obituary - Albert van der Werff 1903-1991 (pp. 195-199). (Number 2)

K.B. Clarke - The search for a Norfolk lake deposit containing Cyclotella: a cautionary tale and some observations on C. sevillana Deby and C. sexpunctata Deby (pp. 211-221);  A. Economou-Amilli - Cyclotella elymaea, a new fossil species from the Neogene Basin of Kozani-Aeani-Servia, Northern Greece (pp. 223-233);  G.A. Fryxell, S.A. Garza & D.L. Roelke - Auxospore formation in an Antarctic clone of Nitzschia subcurvata Hasle (pp. 235-245);  A.M. Gayoso & V.H. Muglia - Blooms of the surf-zone diatom Gonioceros armatus (Bacillariophyceae) on the South Atlantic coast (Argentina) (pp. 247-253);  S.I. Genkal & G.I. Popovskaya - New data on the frustule morphology of Aulacosira islandica (Bacillariophyta) (pp. 255-266);  M.K. Hein - Anorthoneis dulcis sp. nov., a new freshwater diatom from Northern Florida, U.S.A. (pp. 267-280);  D.U. Hernández-Becerril - The morphology and taxonomy of the planktonic diatom Chaetoceros coarctatus Lauder (Bacillariophyceae) (pp. 281-287);  D.U. Hernández-Becerril - Note on the morphology of Chaetoceros didymus and C. protuberans with some considerations on their taxonomy (pp. 289-297);  B. Hickel & H. Håkansson - The freshwater diatom Aulacoseira herzogii (pp. 299-305);  J. John & Economou-Amilli - Morphology and ultrastructure of the centric diatom Cyclotella distinguenda (pp. 307-315);  D. Marino, G. Giuffre, M. Montresor & A. Zingone - An electron microscope investigation on Chaetoceros minimus (Levander) comb. nov. and new observations on Chaetoceros throndsenii (Marino, Montresor and Zingone) comb. nov.;  (pp. 317-326);  J.N. Navarro & D.M. Williams - Description of Hyalosira tropicalis sp. nov. (Bacillariophyta) with notes on the status of Hyalosira Kützing and Microtabella Round (pp. 327-336);  G. Novarino & A.R. Muftah - A description of Mastogloia biocellata stat. nov. from Qatari coastal waters (pp. 337-344);  M. Poulin & P. Hamilton - Some aspects of the curation and consideration of the diatom collection at the Canadian Museum of Nature (pp. 345-349);  P.J.M. Snoeijs & M. Kuylenstierna - Two new diatom species in the genus Tabularia from the Swedish coast (pp. 351-365);  A.S. Sterrenburg - Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). Light microscopical criteria for taxonomy (pp. 367-389);  C. Tolomio, C. Andreoli & M.T. Avignone - Contribution a la connaissance du periphyton diatomique des eaux saumatres de La Valle Sparesera (Suite) (pp. 391-399);  A. Witkowski - Fallacia cassubiae sp. nov., a new brackish-water diatom from the Puck Bay (Southern Baltic Sea), Poland (pp. 401-409);  P.J.M. Snoeijs - Verification of three new combinations of diatom names (p. 411);  A. Witkowski - An occurrence of living Terpsinoë americana (Bailey) Ralfs in bottom sediments of the Puck Bay (the Southern Baltic Sea), Poland (pp. 413-415).�

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