<p>The vampire squid occupies meso- to bathypelagic depths throughout the world's tropical and temperate oceans where little to no light penetrates. The vampire squid is vertically distributed between depths of 300-3000m with a majority of vampire squids occupying depths of 1,500-2,500m. Studies conducted at the Monterey Bay Aquarium Research Institute in California revealed that the <span class="taxon"><em>Vampyroteuthis infernalis</em></span> is confined to the oxygen minimum layer in this bay at an average depth of 690m and oxygen levels of 0.22 ml/l. The vampire squid's north-south distribution is localized between the fortieth degree north and south latitudes where the water is 2-6 degrees Celsius.</p>  <p>(Grzimek 1972)</p>  <p>(Wood and Ellis 1999)</p>  <p><strong>Biogeographic Regions: </strong>Indian Ocean; Indian Ocean :: Native; Atlantic Ocean; Atlantic Ocean :: Native; Pacific Ocean; Pacific Ocean :: Native</p>