Galapagos Species Database

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

Halichrysis irregularis (Kützing) A.J.K. Millar

alga roja, red algae

Taxonomy

Domain
Eukaryota

Kingdom
Plantae

Phylum
Rhodophyta

Class
Florideophyceae

Order
Rhodymeniales

Family
Rhodymeniaceae

Genus
Halichrysis

Species
irregularis

Taxon category: Accepted

Syn.: Halichrysis coalescens (Farlow) R.E. Norris & A.J.K. Millar, Drouetia coalescens (Farlow) G. DeToni, fide Millar, A.J.K. & Prud'homme van Reine (2005), basionym: Herpophyllon coalescens Farlow

Origin: Native

Distribution

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

Distribution: (H. coalescens) Galapagos Islands (Miller & Garske, 2011).

References

  • Farlow, W.G. (1902) Algae. In: B.L. Robinson: Flora of the Galapagos Islands. Proc. Amerc. Acad. Arts Sc. 38(4): 89-99, N.S. 14 (Papers from the Hopkins-Stanford Expedition to the Galapagos Islands)
  • Garske, L.E. (2002) Macroalgas Marinas. In: Danulat, E. & Edgar, G.J. (eds.) (2002): Reserva Marina de Galápagos. Línea Base de la Biodiversidad. Fundación Charles Darwin/Servicio Parque Nacional Galápagos, Santa Cruz, Galápagos, Ecuador, p. 419-439.
  • Guiry, M.D. Guiry, G.M. (2021) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org
  • 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.
  • Millar, A.J.K. Prud'homme van Reine, W.F. (2005) Marine benthic macroalgae collected by Vieillard from New Caledonia and described as new species by Kützing. Phycologia 44: 536-549.
  • Miller, K.A. Garske, L.E. (2011) Galápagos Seaweeds. unpublished manuscript, 49 pp.
  • Silva, P.C. (1966) Status of our knowledge of the Galapagos benthic marine algal flora prior to the Galapagos International Scientific Project. In: Bowman, R.I. (ed.): The Galapagos Islands Symposium of the Galapagos International Scientific Project. University of California Press, Berkeley, p. 149-156.
  • Taylor, W.R. (1945) Pacific marine algae of the Allan Hancock Expeditions to the Galapagos Islands. Allan Hancock Pac. Expedit., 12, iv+-528.

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, Halichrysis irregularis", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=11569. Accessed 31 October 2026.