Rw. Jordan et Ahl. Chamberlain, CANISTROLITHUS-VALLIFORMIS GEN ET SP-NOV (SYRACOSPHAERACEAE, PRYMNESIOPHYTA), A COMPARISON WITH THE GENUS ALISPHAERA, Phycologia, 32(5), 1993, pp. 373-378
Canistrolithus valliformis gen. et sp. nov. (Syracosphaeraceae, Prymne
siophyta) is described as a new coccolithophorid inhabiting the subtro
pical waters of the Atlantic and Pacific Oceans. Comparisons are made
with the genus Alisphaera Heimdal, and in particular with A. unicornis
Okada et McIntyre. Coccolith morphology was studied in detail with th
e scanning electron microscope, with emphasis on the multilayered cocc
olith wall and the structures associated with the rim.