Note
Five species of Gennadas and one species of the closely related genus Bentheogennema are found in the eastern Gulf of Mexico. Gennadas undergoes diel migration with most of the population concentrating at 650-850 m in the day and at 150-400m during the night. Bentheogennema intermedia remains below 900 m. Gennadas valens is the most abundant species and constitutes 63% of the Gennadas catch.