CELL COMPOSITION OF HEMOPOIETIC ORGANS OF CARTILAGINOUS FISHES
Quantitative and qualitative parities of formed blood cells in hemopoietic organs of the representative of cartilaginous fishes, skate (Atlantic stingray), are established in the paper. Differentiated cells have been presented by erythrocytes, agranulocytes and granulocytes in canal tissues of mesonephros. In a spleen cells of all kinds have been formed. Granulo and agranulocytopoiesis have occurred in hemopoietic tissues, associated with mucous tunic of digestive tract. Hemopoietic nodules of pericardial cavity of the investigated fish contained formed cells of erythropoietic, granulocytopoietic and аgranulocytopoietic lines.