Chiropsalmus quadrumanus
Chiropsalmus quadrumanus, commonly known as the four-handed box jellyfish, is a species of box jellyfish found in the western Atlantic Ocean, the Gulf of Mexico and the Pacific Ocean. The sting is venomous and dangerous to humans, especially children.
Box sea catfish
The Box sea catfish (Cathorops multiradiatus) is a species of catfish in the family Ariidae. It was described by Albert Günther in 1864. It is a tropical, marine catfish which occurs in Guatemala, Costa Rica, El Salvador, Colombia, Peru, Ecuador, Mexico, Nicaragua, Honduras, and Panama. It dwells at a maximum depth of . It reaches a .