Lymphocytes are mononuclear cells with scant pale blue cytoplasm. In some species lymphocytes are the most common leucocyte and may represent over 80% of the differential in some reptiles. In reptiles there may be more diversity than just T and B cells.[[Category:Lizard_and_Snake_Glossary]] | Lymphocytes are mononuclear cells with scant pale blue cytoplasm. In some species lymphocytes are the most common leucocyte and may represent over 80% of the differential in some reptiles. In reptiles there may be more diversity than just T and B cells.[[Category:Lizard_and_Snake_Glossary]] |