The Leiocassis aculeatus lives in the demersal, freshwater environment.
One of the fish, Leiocassis aculeatus, is said to be similar to L. poecilopterus, but has a slightly longer adipose fin and longer dorsal and pectoral spines. The second new catfish, Mystus alasensis, like M. nigriceps, M. castaneus and M. More