PEDINOMONAS NOCTILUCAE (PRASINOPHYCEAE), THE FLAGELLATE SYMBIOTIC IN NOCTILUCA (DINOPHYCEAE) IN SOUTHEAST ASIA1

SUMMARY The small green flagellate symbiotic in the Noctiluca miliaris Suriray from Southeast Asia has been examined by light and electron microscopy. The flagellate is very similar to Pedinomonas minor Korschikoff. The deeper flagellar depression and the habitat distinguish this species of Pedinomonas from P. minor. It is not a euglenoid as originally proposed, since it contains starch. Characters distinguishing it from Micromonas are described. The new combination Pedinomonas noctilucae (Subrahmanyan) comb, nov. is proposed for this flagellate.