Mantle Dorsal margin free from head. References Lu, C. C., A. Guerra, F. Palumbo and W. C. Summers. Order Sepioidea Naef, 1916. Title Illustrations Heteroteuthis hawaiiensis , off Hawaii. Left photograph shows the lateral silvery band on the mantle.
Right photograph is a mature male.
Other photos Heteroteuthis hawaiiensis , off Hawaii, photophore. Heteroteuthis hawaiiensis , off Hawaii, mature male. All photographs copyright 1996, R. E. Young. David Maddison and Wayne Maddison.