Special thanks for the first three photos of Amphioctopus siamensis to Dennis M. Corpuz, Philipinnes!
The very deadly mototi, a single blue ring is displayed below the each of the eyes next to the siphon as a warning. The last two stills show mototi getting angry, showing its rings, turning striped and raising its tentacles warning me to back off. This octopus has enough venom to kill 20 men, which is 10,000 times more toxic than cyanide. The toxin causes motor paralysis and respiratory arrest within minutes of exposure, leading to cardiac arrest due to a lack of oxygen. First aid involves applying a pressure bandage and performing artificial respiration once the paralysis has disabled the victim's respiratory muscles, which often occurs within minutes of being bitten. Tetrodotoxin poisoning can result in the victim being fully aware of their surroundings but unable to breathe. No known antidote.
Text Source: Nicholas Simpson
Biota > Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Coleoidea (Subclass) > Octopodiformes (Superorder) > Octopoda (Order) > Incirrata (Suborder) > Octopodoidea (Superfamily) > Octopodidae (Family) > Amphioctopus (Genus) > Amphioctopus siamensis (Species)