Hkvlron iniciosc()|i> m occ-;iiH)gi;iphic rcscjirch 



4M 



waters poor in nulrients mav be found in this feature (Bkavk,,, Mvkkmi and 

 NoKDi.i, 1955). 



Electron microscopy has opened neu vistas for the student of oceanic phyio- 

 plankton populations. It will lead to a revision of the taxononi> of the manN mnnnc 

 forms, and a sound basis for ecological surveys mav thus be established It is not 

 difficult to foresee that in experimental studies on the phvsioloiiical and ecological 

 characters of marine phytoplankton as well, the electron microscope vmII turn out 

 lo be a valuable tool. 



REFERENCES 



Braarud, T. (1954). Coceolith morphology and taxonomic position of Hvim-nomonas nn,-ola Stem 



and ^.vramv/j/?«f/a C«;7f/«e' Braariid and Eauerland. Nvti Muf; Boi 3 14 

 Braarud, T.. Deflandre. G., Hali ha. , P. and Kamptner. E. (1954), Tcrminologie. nomcndalurc 



et systematique chez ies Coccolithophorid.s. Tiuv., VIII Con^ri", hit Boi Paris 

 Braarud, T.. Gaarder, K. R. and Grontved, J. (1953), The phylopiankion'of ihe Norlh Sea and 



adjacent waters in May 1948. Ranp. Proc. Verb., Cons. Perm. int. Expl Mer 133 1-87 

 Braarud, T., Gaarder, K. R., Markai i, J. and Nordli, E. (1952). Coccolithophorids studied in 



the electron microscope. Observations on Coccolitluis Huxlevi and Svrucosninieru Curierac 



.Wytr Mag. Bot., 1, 129-133. 

 Braarud, T., Markali. J. and Nordi i. E. (1955). .A note on the thecal structure of /^.v/zwurZ/M 



halrica Lohm. ^fytr Mag. Bot. 4. 

 Deflandre, G. (1952), Classe des Coccolithophond.s. In: Trai'ie de Zoologie. ed. Picrre-P Grassc 



Masson et Cie.. Paris, 439-470. 

 Deflandre, G. and Pert, Ch. (1954), Observations sur Ies Coccolithophoridcs actueis ct fosMlcs 



en microscopic ordinaire et electronique. Ann. Puleont.. 40. 

 Gaarder. K. R. and Markali, ,1. (1955), On the coccolithophorids Crystallolithm hyaiinu^ n gen . 



n.sp. and Braannlospluiera Bigclowi. (in preparation.) 

 Halldal, p. ( 1953), Phytoplankton investigations From Weathership M in the Norwegian Sea, I94H 



49, including observations during the '" Arniauer Hansen "" cruise. Julv 1949. HvalraJcis Skrifi 



Norske Viren.sk. Akac/.. 3>S, 1-91. 

 Halldal, P. and Markali. .1. (1954 a), Morpholog\ and micro-structure of coccoliths studied in 



the electron microscope. Observations on .Anthosphacra lohnsta (l.ohm.) Kamptner and iaiyp- 



trosphaera papillifera Halldal. Sytt Mag. Rot.. 2, 117 119. 

 Halldal, P. and Markali, J. (1954 b). Observations on coccoliths of Syrucospliaera nwiliierraneu 



Lohm.. S. piilchra Lohm. and 5. inolischi Schill.. in the electron microscope. J. tin Con.\ . 19 (2). 



329-336. 

 Halldal, P. and Markali, J. (1955 a). The thecal structure of Frugiiaria nana Steemann Nielsen 



(In preparation.) 

 Halldal, P. and Markali, .L (1955 b). Electron microscope studies on coccolithophorids from 



the Norwegian Sea, the Gulf Stream, and the Mediterranean. A\h.. \orske \iiensk Akati . 0\li>. 



Mat.-Naturv. Kl., (In press). 

 Helmcke, J. -G. und Krieger, W. (1953 54), Atlas der Diatomeenschalcn im elektronmikros- 



kopischen Bild, Berlin-Wilmersdorf, I 2. 

 Hendev, N. I. (1954). Note on the PIvmouth ■" Nit/schia "" culture, J. \lcir. Biol A\uh . I K . 33 



(2), 335-339. 

 Kamptner. E. (1952). Das mikroskopische Studium des Skelettes der Coccoliihineen (Kaiktlageilateni 



11. Der Feinbau der Coccolithen. Mikroskopie, 7, 375-386. 

 Nielsen E. Steemann (1935), The production of phytoplankton at the haroc isles. Iceland, last 



Greenland and in the waters around. MeM. Komni. Ihmniarks Fi.sk. og HaMimhruigfhn . .SVr 



Plankton. 3(1). 1-93. . ,,, , • , » 



Parke, M. (1954), New observations on marine C'hr>sophyceae. Proc. \ III C ongrro hit Hot. 



Paris. Sect. 17. 



R 



