The peripheral blood smear is characteristic of:
Thalassemia
Hereditary spherocytosis
Sickle cell anemia
G6PD deficiency
Hereditary Spherocytosis—Peripheral blood smear. 
Note the anisocytosis and several hyperchromic spherocytes. Howell-Jolly bodies (small nuclear remnants) are also present in the red cells of this asplenic patient.
Robin’s Textbook of pathology 10th ed Page 442