Atropoides, a pitviper genus for which Atropus is a junior synonym.
The island has a venomous snake—Trimeresurus elegans, known locally as the habu, is a species of pitviper whose bite has a fatality rate of 3% and a permanent disability rate of 6–8%.
Ovophis okinavensis, a.k.a. the Okinawa pitviper, a venomous pitviper species found in the Ryukyu Islands of Japan.
Agkistrodon contortrix contortrix, a.k.a. the southern copperhead, a venomous pitviper found in the United States
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Agkistrodon contortrix mokasen, a.k.a. the northern copperhead, a venomous pitviper found in the United States