Green sea turtleChelonia mydasTOTAL LENGTH Up to 1.5 m / 5 ftCOLOUR Dark greyish green with light blotches on shellFEATURES Shell tapered at rear; small head relative to body; four costal (side) plates (see on diagram)Related ArticlesPacific white-sided dolphinBlue whaleLeatherback sea turtleOlive ridley turtleLoggerhead turtle