Poorly known family of small tropical shallow-water fishes related to gobies

Wiktionary Word definitions in Wiktionary
n. Any of the family ''(taxlink Microdesmidae family noshow=1)'' of small goby-like fish which often burrow in estuarine mud.

Wikipedia Word definitions in Wikipedia
Wormfishes are a subfamily, Microdesminae , of goby -like fishes in family Microdesmidae of the order Perciformes . They are found in shallow tropical waters, both marine and brackish , often burrowing in estuarine mud. They are small fishes, the largest ...