Oliva incrassata Lightfoot, 1786 79-83mm Punta Estrella, San Felipe, Baja Norte On/in sand at extreme low tide 1/91

Oliva incrassata burchorum Zeigler 1969 56-62mm Radar Beach 18miles South of San Felipe, Baja Norte On/in sand at extreme low tide 1968

Oliva incrassata Lightfoot, 1786 50-70mm El Golfo de Santa Clara, Sonora, Mexico On/in sand at extreme low tide 3/94 - Striped form