1) Family eleotridae 2) Fish family 3) Sleepers 
Sleeper gobies are members of the Eleotridae fish family, found predominantly in the tropical Indo-Pacific, with about 35 genera and 150 species. While many eleotrids pass through a planktonic stage in the sea and some spend their entire lives in the sea, as adults, the majority live in freshwater streams and brackish waters. A few species (e.g., ...
[n] - sleepers
family Eleotridae noun sleepers