Hourglass clingfish
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Gobiesociformes
- family: Gobiesocidae
- genus: Tomicodon
- species: Tomicodon petersii
Sardinal
Guanacaste
Costa RicaLa Libertad
Guayas
EcuadorAcajutla
Sonsonate
El SalvadorAcapulco
GuerreroSan Blas
NayaritLa Libertad
Sonora
MexicoCorinto
ChinandegaSan Juan del Sur
Rivas
NicaraguaAncón
Panamá
Panama