Types

 lytic granules of cytotoxic T lymphocyte (secretory lysosomes containing both perforin and granzymes)
 melanosomes of melanocytes

References

 Stinchcombe J, Bossi G, Griffiths GM. Linking albinism and immunity: the secrets of secretory lysosomes. Science. 2004 Jul 2;305(5680):55-9. PMID: #15232098#

 Clark R, Griffiths GM. Lytic granules, secretory lysosomes and disease. Curr Opin Immunol. 2003 Oct;15(5):516-21. PMID: #14499259#