Galapagos Species Database

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

Halecium washingtoni Nutting, 1901

Hydroides, Hydroids

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Cnidaria

Class
Hydrozoa

Order
Leptothecata

Suborder
Conica

Family
Haleciidae

Genus
Halecium

Species
washingtoni

Taxon category: Accepted

Syn.: Halecium geniculatum Nutting, 1899 (Horton et al., 2021).

Origin: Native

Distribution

Distribution: Peru, Costa Rica and Galapagos Island in Isabela I (Fraser, 1938). United States, Canada and the Galapagos Islands in Fernandina I (Cairns et al., 2002; Calder et al., 2003).

References

  • Calder, D.R. Mallinson, J.J., Collins, K. & Hickman, C.P. (2003) Additions to the Hydroids (Cnidaria) of the Galapagos, with a List of Species Reported from the Islands. J. Nat. Hist. 37:1173-1218.
  • Fraser, C.M. (1939) Distribution of the hydroids in the collections of the Allan Hancock Expeditions. Fraser, M. (1939). Distribution of the hydroids in the collections of the Allan Hancock Expeditions. In Allan Hancock Pacific Expeditions. (Vol. 4, pp. 155–178).
  • 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.
  • Cairns, S.D. Alder, D. R., Brinckmann-Voss, A., Castro, C. B., Fautin, D. G., Pugh, P. R., Mills, C. E., Jaap, W. C., Arai, M. N., & Haddock, S. H. D. (2002) Common and scientific names of aquatic invertebrates from the United States and Canada: Cnidaria and Ctenophora. Cairns, S. D., Calder, D. R., Brinckmann-Voss, A., Castro, C. B., Fautin, D. G., Pugh, P. R., Mills, C. E., Jaap, W. C., Arai, M. N., & Haddock, S. H. D. (2002). Common and scientific names of aquatic invertebrates from the United States and Canada: Cnidaria and Ctenophora.
  • Fraser, C. M. (1938) Hydroids of the 1932, 1933, 1935 and 1938 Allan Hancock Pacific Expeditions In Allan Hancock Pacific Expeditions (pp. 1–152)

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, Halecium washingtoni", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=19387. Accessed 27 May 2025.