Family : Gobiidae
Scientific Name : Schismatogobius deraniyagalai
English Name : Red-Neck Goby
Local Name : Kata rathu weligowwa
Location : Restricted to wet zone
Maximum Length : Can be grow up to 4-5 cm
4-5 irregular black spots found along lateral line of the body A large, vertically elongated, oval spot at base of caudal fin Gape reaching backwards almost to preopercle angle in males and to middle of eye in females In males, the chin and throat are orange-red. Inside of mouth of male’s bright red
Found in shallow areas of rivers with sandy, coarse sand or gravel substrate
Females are dull in color