“Big Red” (Tiburonia granrojo)
…a species of Ulmarid jellyfish that is the sole member of the subfamily Tiburoniinae. Tiburonia granrojo has been observed in deep waters (around 600 to 1,500 meters) across the Pacific Ocean, including in the Sea of Cortez, Monterey Bay, Hawaii, and Japan. Tiburonia granrojo can grow up to 75 centimeters (30 in) in diameter and in place of the long tentacles found in most other jellyfish it has thick oral arms. Only 23 specimens of Tiburonia granrojo have ever been observed, and only one has been collected (a small [15 cm] specimen) for study.