La pinna ventrale è trasformata in una ventosa con la quale aderisce alle rocce.

Tassonomia:

Domain: Eukaryota Whittaker & Margulis,1978 - eukaryotes
Kingdom: Animalia Linnaeus, 1758 - Linnaeus, 1758 - animals
Subkingdom: Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
Branch: Deuterostomia Grobben, 1908 - Deuterostomes
Infrakingdom: Chordonia (Haeckel, 1874) Cavalier-Smith, 1998
Phylum: Chordata Bateson, 1885 - Chordates
Subphylum: Vertebrata Cuvier, 1812 - Vertebrates
Infraphylum: Gnathostomata auct. - Jawed Vertebrates
Superclass: Osteichthyes Huxley, 1880 - Bony Fishes
Class: Osteichthyes Huxley, 1880 - Bony Fishes
Subclass: Actinopterygii - Ray-Finned Fishes
Infraclass: Actinopteri
Cohort: Clupeocephala
Superorder: Paracanthopterygii
Order: Gobiesociformes - Clingfishes
Family: Gobiesocidae - Clingfishes and Singleslits
Subfamily: Gobiesocinae
Genus: Lepadogaster Lowe, 1839
Specific name: lepadogaster (Bonnaterre, 1788)
Scientific name: Lepadogaster lepadogaster (Bonnaterre, 1788)