The Heterenchelyidae or mud eels are a small family of eels native to the Atlantic, Mediterranean, and eastern Pacific. Heterenchelyids are bottom-dwelling fish adapted to burrowing into soft mud. They have large mouths and no pectoral fins, and range from in length. Currently, eight species in two genera are recognized in this family.

References

Marine fish families Eels Ray-finned fish families {{Anguilliformes-stub