a number of common names have been applied to the family scyllaridae. the most common of these is "slipper lobster", followed by "shovel-nosed lobster" and "locust lobster". "spanish lobster" is used for members of the genus "arctides", "mitten lobster" for "parribacus", and "fan lobster" for "evibacus" and "ibacus". in australia, a number of species are called "bugs" (for example, the balmain bug and moreton bay bug), especially those in the genus "ibacus". other names used in australia include "bay lobster", "blind lobster", "flapjack", "flat lobster", "flying saucer", "gulf lobster", "mudbug", "sandbug", "shovel-nose bug", "shovelnose lobster", "crayfish", "slipper bug" and "squagga". rarer terms include "flathead lobster" (for "thenus orientalis") and "bulldozer lobster".