The Periophthalmus walailakae lives in the demersal, brackish environment.
I found out the reason as to why Periophthalmus walailakae has been mistaken to be Periophthalmodon schlosseri today. More
Periophthalmus walailakae and Periophthalmodon schlosseri (Teleostei: Gobiidae) from Singapore 1043-1047 Zeehan Jaafar, Kelvin K. P. More
Periophthalmus walailakae and Periophthalmodon schlosseri (Teleostei: Gobiidae) from Singapore12 * Time Scale for Cyclostome Evolution Inferred with a Phylogenetic Diagnosis of Hagfish and Lamprey cDNA Sequences * An More