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 s pines at each end. The transverse costal component includes a single a nterior transverse costa, and pairs of crossing (X-shaped) costal stri ps 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 rep orted from several places in the North Atlantic (including the high Ar ctic), Arctic Canada, and South America. The West Greenland loricate c hoanoflagellate community (August 1988) comprised more than 32 species . Ten of these accounted for more than 90% of the total population.