1) Fish genus 2) Genus periophthalmus 
Periophthalmus is a genus of mudskippers native to the mangrove forests along the coasts of Africa, India, and Southern Asia. All species under the genus are aggressive and territorial. There are currently 18 recognized species in this genus: ...
Periophthalmus is a genus of bony fishes, allied to the gobies, whose members are sometimes called walking fish. The eyes can be protruded and retracted, and are furnished with eyelids. These fish haunt tidal estuaries, and use their muscular pectoral fins in skipping over the mud flats or in climbing about the roots of trees.
[n] - a genus of Gobiidae
genus Periophthalmus noun a genus of Gobiidae