Abstract
Various species of starfish were collected and extracts were prepared from them to study the agglutinating properties of human red cells. The present results reveal that there are agglutinating substance in all extracts in particular, Pentaceros hawaiiensis and Linckia multifora showed agglutinins more predominant in reacting with group A and B red cells respectively. However, absorption experiments with immunodominant sugars, red cells and saliva showed that the agglutinating substances were not specific in the ABO blood roup.
