The blennioid family Chaenopsidae includes the pike-blennies, tube-blennies, and flagblennies, all percomorph marine fish in the order Blenniiformes.

[3] With highly compressed bodies, some may be so elongated as to appear eel-like; chaenopsids are scaleless and lack lateral lines.

[2] The habit of taking up home in abandoned worm tubes has earned some species in this family the name "tube-blenny".

[4] At least one species found in the Caribbean, Emblemariopsis diaphana, is known to form a symbiotic relationship with stony coral, Meandrina meandrites.

They propose that Stathmonotus be included in the family Labrisomidae and that Neoclinus, and the closely related Mccoskerichthys, be placed in the tribe Neoclinini, stating that further study is required to clarify this clade's true relationships.