Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Philophthalmus zalophi
platelminto, flatworm
endoparasite
This is an eye fluke that has been confirmed in eyes from sea lions on San Cristobal. Associated with these flukes can be severe ocular damage. They are located in the conjunctival region of the eyes.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Platyhelminthes
Class
Trematoda
Order
Plagiorchiida
Suborder
Echinostomata
Superfamily
Echinostomatoidea
Family
Philophthalmidae
Genus
Philophthalmus
Species
zalophi
Taxon category: Accepted
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
- Dailey, M. Ellin, R. & Parás, A. (2005) First report of parasites from pinnipeds in the Galpagos Islands, Ecuador, with a description of a new species of Philophthalmus (Digenea: Philophthalmidae). Journal of Parasitology 91(3): 614-617.
- 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.
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, Philophthalmus zalophi", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=11695. Accessed 3 November 2026.