How big can mud skippers grow?

Eighteen species of mudskipper have been described. Periophthalmus argentilineatus is one of the most widespread and well known species. It can be found in mangrove ecosystems and mudflats of East Africa and Madagascar east through Bengal, Southeast Asia to Northern Australia, southeast China and southern Japan, up to Samoa and Tonga Islands. It grows to a length of about 9.5 cm . It feeds on small prey such as small crabs and other arthropods,and is a carnivorous opportunist feeder