The ability to staphylokinase production by the representative of the six of fifteen investigated species of staphylococci was detected: S. epidermidis, S. lentus, S. sciuri, S. lugdunensis, S. xylosus and S. hominis. The frequency of occurrence of this feature was different among the investigated species. Relatively, the least frequently this feature was observed with S. epidermis (2.3%) and S. xylosus (8.3%) strains. This property most frequently occurred among S. lentus--all the examined strains of this species produced staphylokinase. The hemolysins synthesis was shown among 13 of 15 investigated coagulase-negative species of staphylococci. The only two species of the examined representatives did not produce any hemolysin: S. hyicus and S. schleiferi. Complete correlation between staphylokinase synthesis and the absence of beta-hemolysin production was observed among strains: S. lugdunensis and S. lentus as with the lysogenic S. aureus strains with the double converting phages.