Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

Malacoctenus zonogaster Heller & Snodgrass, 1903

trombollo panzimanchado, Spotbelly blenny, Belted blenny

Color pattern varies with sex. Males have transparent or dusky dorsal, anal and pectoral fins with few spots, but the caudal may be spotted. Six irregular, but uniformly dark, bars on body (these rather poorly defined on s. Lengths of 75 mm.

Habitat: Occurs throughout the Archipelago,along the rocky shores to depths of at least 10m, most commonly just below the intertidal zone.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Teleostei

Order
Blenniiformes

Suborder
Blennioidei

Family
Labrisomidae

Genus
Malacoctenus

Species
zonogaster

Taxon category: Accepted

Origin: Endemic

Status

Least concern

Distribution

Map of specimen collection localities or observation records for this species in our collections database.

Distribution: Endemic to Ecuador in the Galapagos Islands.

References

  • Appeltans, W. Bouchet, P., Boxshall, G.A., Fauchald, K., Gordon, D.P., Hoeksema, B.W., Poore, G.C.B., van Soest, R.W.M., Stöhr, S., Walter, T.C., Costello, M.J. (eds.) (2010) World Register of Marine Species (WoRMS). Available online at http://www.marinespecies.org.
  • Grove, J.S. Long, D.J., Robertson, D.R. & Victor, B.C. (2022) List of Fishes of the Galapagos Archipelago, Ecuador. Journal of the Ocean Science Foundation, 39, 14–22.
  • Grove, J.S. Lavenberg, R.J. (1997) The Fishes of the Galapagos Islands. Stanford University Press, Stanford California. 862 pp.
  • Horton, T. Horton, T., Kroh, A., Ahyong, S., Bailly, N., Boyko, C. B., Brandão, S. N., Gofas, S., Hooper, J. N. A., Hernandez, F., Holovachov, O., Mees, J., Molodtsova, T. N., Paulay, G., Decock, W., Dekeyzer, S., Poffyn, G., Vandepitte, L., Vanhoorne, B., Adlard, R., ... Zhao, Z. (2021) World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ.
  • IUCN (2023) The IUCN Red List of Threatened Species. Version 2023-1. Https://www.iucnredlist.org
  • IUCN (2010) IUCN Red List of Threatened Species www.iucnredlist.org
  • McCosker, J.E. Rosenblatt, R.H. (2010) The fishes of the Galápagos Archipelago: an update. Proc. Calif. Acad. Sc., Ser. 4, vol. 61, Suppl. II, no. 11: 167-195.

You are welcome to download and use the information found in this page, acknowledging its source.

This page should be cited as follows:

"Galapagos Species Database, Malacoctenus zonogaster", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=7690. Accessed 5 June 2026.