LORICATE CHOANOFLAGELLATES FROM WEST GREENLAND (AUGUST 1988) INCLUDING THE DESCRIPTION OF SPINOECA-BUCKII GEN-NOV ET SP-NOV

A new loricate choanoflagellate genus, Spinoeca buckii gen. et sp. nov., is described from West Greenland. The lorica has four conspicuous spines at each end. The transverse costal component includes a single anterior transverse costa, and pairs of crossing (X-shaped) costal strips at the posterior lorica end. The lorica appears to be open also at the posterior end. In addition to West Greenland, the new taxon is reported from several places in the North Atlantic (including the high Arctic), Arctic Canada, and South America. The West Greenland loricate choanoflagellate community (August 1988) comprised more than 32 species. Ten of these accounted for more than 90% of the total population.