Abstract: The agglutination activities of concanavalin A, phytohemagglutinin, wheat germ agglutinin and Ricinus communis agglutiiiin on five strains of Leishmania donovani, one strain of L. mexicana amazonensis, one strain of L. gerbilae and one strain of L. sp. isolated from lizards were studied. Con A and RCA agglutinated specifically all the eight strains. Agglutination with PHA or WGA did not occur in any of the strains tested. These results showed the presence of terminal ligands as α-D mannose and/or a-D glucose and a-D galactose on the surface membrane of these strains of Leishmania.