Fine structure of the haemocytes of the Indian white shrimp Fenneropenaeus indicus (H. Milne Edwards, 1837)

Abstract

Three types of circulating haemocytes have been identified in the haemolymph of the Indian white shrimp, Fenneropenaeus indicus, by electron microscopy. The ultrastructure of an agranulocyte, a dense granulocyte, and a semi-dense granulocyte, are described. The possible presence of a fourth type of haemocyte, viz., the cyanocyte, is discussed. The ultrastructure of a special type of haemocyte found in the haemolymph of shrimps with a developing ovary is described.