Okinawan Habu (Protobothrops flavoviridis) (image) Okinawa Institute of Science and Technology (OIST) Graduate University Share Print E-Mail Caption The Okinawan habu is endemic to the Ryukyu islands of Japan. It is the longest and the most venomous of the three habu species found in the region. Credit Prof. Hiroki Shibata Usage Restrictions Please use photo credits as mentioned above. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.