The Proceedings of the 19th International Diatom Symposium are available at the discounted price of £22 from Sarah Davies at: Now available for online ordering and payment. Dr Sarah Davies (Secretary) Insititute of Geography and Earth Sciences Aberystwyth University Penglais Campus Aberystwyth SY23 3DB E-mail: email@example.com The 18th and 19th Symposium proceedings can be bought together for £40. A.J. Bramburger, P.B. Hamilton, P.E. Hehanussa & G.D. Haffner. Spatial patterns of planktonic and benthic diatom distribution and assemblage similarity in Lake Matano (Sulawesi Island, Indonesia). M.A. Harper & P.J. Barrett A diatom record of glacial to interglacial transition beneath the McMurdo Ice Shelf, Antarctica. O.V. Kaluzhnaya Valve morphogenesis in the centric diatom Cyclotella baicalensis G.K. Khursevich & J.P. Kociolek Four new Cyclotella species from Pliocene lacustrine deposits in the U.S. A. S. Konno & R.W. Jordan Paralia longispina sp. nov., an extant species from Palau and Haha-jima, western North Pacific. G. Reid The Gyrosigma taxa (Bacillariophyceae) in Lake Baikal, Siberia, Russia. N. Soninkhishig, M.B. Edlund & D.B. Czarnecki The type, taxonomy, and distribution of Anomoeoneis fogedii Reimer. N.I. Strelnikova A history of diatom research in Russia H. Suzuki, J. Tanaka, T. Nagumo & A.E. Kuzmina Morphological and taxonomical study of Cocconeis baikalensis (Skvortzov & Meyer) Skvortzov. H. Tanaka, T. Nagumo & F. Akiba Aulacoseira hachiyaensis sp. nov., a new Early Miocene freshwater fossil diatom from the Hachiya Formation, Japan. A. Tuji & D.M. Williams Examination of types in the Fragilaria pectinalis-capitellata species complex. D.M. Williams & G. Reid Type material of Peronia fibula: morphology, systematics and relationships. S. Yoshitake, H. Fukshima & E.V. Lepskaya The diatom flora of some hot springs in Kamchatka, Russia.